Trojan.Siggen32.63495

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SystemName' = '<Full path to file>'

Creates or modifies the following files

<SYSTEM32>\tasks\systemname

Malicious functions

Reads files which store third party applications passwords

%LOCALAPPDATA%\google\chrome\user data\default\web data
%LOCALAPPDATA%\google\chrome\user data\default\login data
%LOCALAPPDATA%\google\chrome\user data\default\cookies
%LOCALAPPDATA%\microsoft\edge\user data\default\login data
%LOCALAPPDATA%\microsoft\edge\user data\default\web data

Modifies file system

Creates the following files

%TEMP%\_mei21202\81d243bd2c585b0f4821__mypyc.cp311-win_amd64.pyd
%TEMP%\_mei21202\crypto\cipher\_arc4.pyd
%TEMP%\_mei21202\crypto\cipher\_salsa20.pyd
%TEMP%\_mei21202\crypto\cipher\_chacha20.pyd
%TEMP%\_mei21202\crypto\cipher\_pkcs1_decode.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_aes.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_aesni.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_arc2.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_blowfish.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_cast.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_cbc.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_cfb.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_ctr.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_des.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_des3.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_ecb.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_eksblowfish.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_ocb.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_ofb.pyd
%TEMP%\_mei21202\crypto\hash\_blake2b.pyd
%TEMP%\_mei21202\crypto\hash\_blake2s.pyd
%TEMP%\_mei21202\crypto\hash\_md2.pyd
%TEMP%\_mei21202\crypto\hash\_md4.pyd
%TEMP%\_mei21202\crypto\hash\_md5.pyd
%TEMP%\_mei21202\crypto\hash\_ripemd160.pyd
%TEMP%\_mei21202\crypto\hash\_sha1.pyd
%TEMP%\_mei21202\crypto\hash\_sha224.pyd
%TEMP%\_mei21202\crypto\hash\_sha256.pyd
%TEMP%\_mei21202\crypto\hash\_sha384.pyd
%TEMP%\_mei21202\crypto\hash\_sha512.pyd
%TEMP%\_mei21202\crypto\hash\_ghash_clmul.pyd
%TEMP%\_mei21202\crypto\hash\_ghash_portable.pyd
%TEMP%\_mei21202\crypto\hash\_keccak.pyd
%TEMP%\_mei21202\crypto\hash\_poly1305.pyd
%TEMP%\_mei21202\crypto\math\_modexp.pyd
%TEMP%\_mei21202\crypto\protocol\_scrypt.pyd
%TEMP%\_mei21202\crypto\publickey\_curve25519.pyd
%TEMP%\_mei21202\crypto\publickey\_curve448.pyd
%TEMP%\_mei21202\crypto\publickey\_ec_ws.pyd
%TEMP%\_mei21202\crypto\publickey\_ed25519.pyd
%TEMP%\_mei21202\crypto\publickey\_ed448.pyd
%TEMP%\_mei21202\crypto\util\_cpuid_c.pyd
%TEMP%\_mei21202\crypto\util\_strxor.pyd
%TEMP%\_mei21202\vcruntime140.dll
%TEMP%\_mei21202\vcruntime140_1.dll
%TEMP%\_mei21202\_bz2.pyd
%TEMP%\_mei21202\_ctypes.pyd
%TEMP%\_mei21202\_decimal.pyd
%TEMP%\_mei21202\_hashlib.pyd
%TEMP%\_mei21202\_lzma.pyd
%TEMP%\_mei21202\_queue.pyd
%TEMP%\_mei21202\_socket.pyd
%TEMP%\_mei21202\_sqlite3.pyd
%TEMP%\_mei21202\_ssl.pyd
%TEMP%\_mei21202\base_library.zip
%TEMP%\_mei21202\certifi\cacert.pem
%TEMP%\_mei21202\charset_normalizer\cd.cp311-win_amd64.pyd
%TEMP%\_mei21202\charset_normalizer\md.cp311-win_amd64.pyd
%TEMP%\_mei21202\libcrypto-3.dll
%TEMP%\_mei21202\libffi-8.dll
%TEMP%\_mei21202\libssl-3.dll
%TEMP%\_mei21202\psutil\_psutil_windows.pyd
%TEMP%\_mei21202\python3.dll
%TEMP%\_mei21202\python311.dll
%TEMP%\_mei21202\pywin32_system32\pywintypes311.dll
%TEMP%\_mei21202\select.pyd
%TEMP%\_mei21202\sqlite3.dll
%TEMP%\_mei21202\unicodedata.pyd
%TEMP%\_mei21202\win32\win32api.pyd
%TEMP%\_mei21202\win32\win32crypt.pyd
nul
%TEMP%\z5bvrjus
%TEMP%\~272879038.dat
%TEMP%\~272843104.dat
%TEMP%\~272814054.dat
%TEMP%\~27287049.dat
%TEMP%\~272860070.dat
%TEMP%\~272836446.dat
%TEMP%\~272842080.dat
%TEMP%\~272852938.dat
%TEMP%\~272852938.dat-shm
%TEMP%\~272877720.dat
%TEMP%\~272877720.dat-shm

Deletes following files that it created itself

%TEMP%\z5bvrjus
%TEMP%\~272879038.dat
%TEMP%\~272843104.dat
%TEMP%\~272814054.dat
%TEMP%\~27287049.dat
%TEMP%\~272860070.dat
%TEMP%\~272836446.dat
%TEMP%\~272842080.dat
%TEMP%\~272852938.dat-shm
%TEMP%\~272852938.dat
%TEMP%\~272877720.dat-shm
%TEMP%\~272877720.dat
%TEMP%\_mei21202\81d243bd2c585b0f4821__mypyc.cp311-win_amd64.pyd
%TEMP%\_mei21202\base_library.zip
%TEMP%\_mei21202\certifi\cacert.pem
%TEMP%\_mei21202\charset_normalizer\cd.cp311-win_amd64.pyd
%TEMP%\_mei21202\charset_normalizer\md.cp311-win_amd64.pyd
%TEMP%\_mei21202\crypto\cipher\_arc4.pyd
%TEMP%\_mei21202\crypto\cipher\_chacha20.pyd
%TEMP%\_mei21202\crypto\cipher\_pkcs1_decode.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_aes.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_aesni.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_arc2.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_blowfish.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_cast.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_cbc.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_cfb.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_ctr.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_des.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_des3.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_ecb.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_eksblowfish.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_ocb.pyd
%TEMP%\_mei21202\crypto\cipher\_raw_ofb.pyd
%TEMP%\_mei21202\crypto\cipher\_salsa20.pyd
%TEMP%\_mei21202\crypto\hash\_blake2b.pyd
%TEMP%\_mei21202\crypto\hash\_blake2s.pyd
%TEMP%\_mei21202\crypto\hash\_ghash_clmul.pyd
%TEMP%\_mei21202\crypto\hash\_ghash_portable.pyd
%TEMP%\_mei21202\crypto\hash\_keccak.pyd
%TEMP%\_mei21202\crypto\hash\_md2.pyd
%TEMP%\_mei21202\crypto\hash\_md4.pyd
%TEMP%\_mei21202\crypto\hash\_md5.pyd
%TEMP%\_mei21202\crypto\hash\_poly1305.pyd
%TEMP%\_mei21202\crypto\hash\_ripemd160.pyd
%TEMP%\_mei21202\crypto\hash\_sha1.pyd
%TEMP%\_mei21202\crypto\hash\_sha224.pyd
%TEMP%\_mei21202\crypto\hash\_sha256.pyd
%TEMP%\_mei21202\crypto\hash\_sha384.pyd
%TEMP%\_mei21202\crypto\hash\_sha512.pyd
%TEMP%\_mei21202\crypto\math\_modexp.pyd
%TEMP%\_mei21202\crypto\protocol\_scrypt.pyd
%TEMP%\_mei21202\crypto\publickey\_curve25519.pyd
%TEMP%\_mei21202\crypto\publickey\_curve448.pyd
%TEMP%\_mei21202\crypto\publickey\_ec_ws.pyd
%TEMP%\_mei21202\crypto\publickey\_ed25519.pyd
%TEMP%\_mei21202\crypto\publickey\_ed448.pyd
%TEMP%\_mei21202\crypto\util\_cpuid_c.pyd
%TEMP%\_mei21202\crypto\util\_strxor.pyd
%TEMP%\_mei21202\libcrypto-3.dll
%TEMP%\_mei21202\libffi-8.dll
%TEMP%\_mei21202\libssl-3.dll
%TEMP%\_mei21202\psutil\_psutil_windows.pyd
%TEMP%\_mei21202\python3.dll
%TEMP%\_mei21202\python311.dll
%TEMP%\_mei21202\pywin32_system32\pywintypes311.dll
%TEMP%\_mei21202\select.pyd
%TEMP%\_mei21202\sqlite3.dll
%TEMP%\_mei21202\unicodedata.pyd
%TEMP%\_mei21202\vcruntime140.dll
%TEMP%\_mei21202\vcruntime140_1.dll
%TEMP%\_mei21202\win32\win32api.pyd
%TEMP%\_mei21202\win32\win32crypt.pyd
%TEMP%\_mei21202\_bz2.pyd
%TEMP%\_mei21202\_ctypes.pyd
%TEMP%\_mei21202\_decimal.pyd
%TEMP%\_mei21202\_hashlib.pyd
%TEMP%\_mei21202\_lzma.pyd
%TEMP%\_mei21202\_queue.pyd
%TEMP%\_mei21202\_socket.pyd
%TEMP%\_mei21202\_sqlite3.pyd
%TEMP%\_mei21202\_ssl.pyd

Substitutes the following files

%TEMP%\~27287049.dat
%TEMP%\~272877720.dat
%TEMP%\~272877720.dat-shm

Network activity

Connects to

'ip##pi.com':80
'ap#.#pify.org':443
'di##ord.com':443

TCP

HTTP GET requests

http://ip##pi.com/json

Other

'ap#.#pify.org':443
'di##ord.com':443

UDP

DNS ASK ip##pi.com
DNS ASK ap#.#pify.org
DNS ASK di##ord.com

Miscellaneous

Restarts the analyzed sample

Executes the following

'<SYSTEM32>\cmd.exe' /c "schtasks /create /f /tn "SystemName" /sc onlogon /tr "<Full path to file>" /rl highest"
'<SYSTEM32>\schtasks.exe' /create /f /tn "SystemName" /sc onlogon /tr "<Full path to file>" /rl highest
'<SYSTEM32>\cmd.exe' /c "schtasks /create /f /tn "SystemName" /sc onlogon /tr "<Full path to file>" /rl highest"' (with hidden window)

テクノロジー

用語

トレーニングコースおよび啓蒙プロジェクト

アンチウイルスに関する誤解と噂

Technical Information

Curing recommendations

Free trial