Trojan.Siggen9.8036

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'Startup key' = '%HOMEPATH%\subfolder1\filename1.vbs'

Malicious functions

Injects code into

the following user processes:

filename1.exe

Searches for registry branches where third party applications store passwords

[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook]
[<HKCU>\Software\Martin Prikryl\WinSCP 2\Sessions\]

Reads files which store third party applications passwords

%LOCALAPPDATA%\google\chrome\user data\default\cookies
%LOCALAPPDATA%\google\chrome\user data\default\web data

Modifies file system

Creates the following files

%HOMEPATH%\subfolder1\filename1.exe
%TEMP%\2fda\api-ms-win-crt-process-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-runtime-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-stdio-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-string-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-time-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-utility-l1-1-0.dll
%TEMP%\2fda\freebl3.dll
%TEMP%\2fda\mozglue.dll
%TEMP%\2fda\msvcp140.dll
%TEMP%\2fda\nss3.dll
%TEMP%\2fda\nssdbm3.dll
%TEMP%\2fda\softokn3.dll
%TEMP%\2fda\ucrtbase.dll
%TEMP%\2fda\vcruntime140.dll
%TEMP%\10712652849354578006166.tmp
%TEMP%\10712811087606277055699.tmp
%PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\policy.vpol
%TEMP%\10731408166109538555398.tmp
%TEMP%\107312582117746211681.tmp
%TEMP%\10731256665912919271305.tmp
%TEMP%\1073125739865495720871.tmp
%TEMP%\10731097190908092688325.tmp
%TEMP%\10730936964595519096413.tmp
%TEMP%\10730153883522069446982.tmp-shm
%TEMP%\1073093753535512757995.tmp
%TEMP%\10730153883522069446982.tmp
%TEMP%\1072937966658962038652.tmp
%TEMP%\1072921353152956985426.tmp
%LOCALAPPDATA%\microsoft\vault\4bf4c442-9b8a-41a0-b380-dd4a704ddb28\policy.vpol
%PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\2f1a6504-0641-44cf-8bb5-3612d865f2e5.vsch
%PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\3ccd5499-87a8-4b10-a215-608888dd3b55.vsch
%TEMP%\10731568498504681785469.tmp
%TEMP%\2fda\api-ms-win-crt-private-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-multibyte-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-math-l1-1-0.dll
%HOMEPATH%\subfolder1\filename1.vbs
%TEMP%\2fda\api-ms-win-core-console-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-datetime-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-debug-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-errorhandling-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-file-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-file-l1-2-0.dll
%TEMP%\2fda\api-ms-win-core-file-l2-1-0.dll
%TEMP%\2fda\api-ms-win-core-handle-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-heap-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-interlocked-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-libraryloader-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-localization-l1-2-0.dll
%TEMP%\2fda\api-ms-win-core-memory-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-namedpipe-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-processenvironment-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-processthreads-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-heap-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-filesystem-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-environment-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-convert-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-conio-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-util-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-sysinfo-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-timezone-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-synch-l1-2-0.dll
%TEMP%\2fda\api-ms-win-core-synch-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-string-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-rtlsupport-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-profile-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-processthreads-l1-1-1.dll
%TEMP%\2fda\api-ms-win-crt-locale-l1-1-0.dll
%TEMP%\10731568498504681785469.tmp-shm

Deletes the following files

%TEMP%\10712652849354578006166.tmp
%TEMP%\2fda\api-ms-win-core-synch-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-synch-l1-2-0.dll
%TEMP%\2fda\api-ms-win-core-sysinfo-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-timezone-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-util-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-conio-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-convert-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-environment-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-filesystem-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-heap-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-locale-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-math-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-rtlsupport-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-string-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-multibyte-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-runtime-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-stdio-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-string-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-time-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-utility-l1-1-0.dll
%TEMP%\2fda\freebl3.dll
%TEMP%\2fda\mozglue.dll
%TEMP%\2fda\msvcp140.dll
%TEMP%\2fda\nss3.dll
%TEMP%\2fda\nssdbm3.dll
%TEMP%\2fda\softokn3.dll
%TEMP%\2fda\ucrtbase.dll
%TEMP%\2fda\api-ms-win-crt-private-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-process-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-profile-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-processthreads-l1-1-1.dll
%TEMP%\2fda\api-ms-win-core-processthreads-l1-1-0.dll
%TEMP%\1072921353152956985426.tmp
%TEMP%\1072937966658962038652.tmp
%TEMP%\10730153883522069446982.tmp-shm
%TEMP%\10730153883522069446982.tmp
%TEMP%\1073093753535512757995.tmp
%TEMP%\10730936964595519096413.tmp
%TEMP%\10731097190908092688325.tmp
%TEMP%\1073125739865495720871.tmp
%TEMP%\10731256665912919271305.tmp
%TEMP%\107312582117746211681.tmp
%TEMP%\10731408166109538555398.tmp
%TEMP%\10731568498504681785469.tmp-shm
%TEMP%\10731568498504681785469.tmp
%TEMP%\10712811087606277055699.tmp
%TEMP%\2fda\api-ms-win-core-console-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-debug-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-errorhandling-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-file-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-file-l1-2-0.dll
%TEMP%\2fda\api-ms-win-core-file-l2-1-0.dll
%TEMP%\2fda\api-ms-win-core-handle-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-heap-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-interlocked-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-libraryloader-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-localization-l1-2-0.dll
%TEMP%\2fda\api-ms-win-core-memory-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-namedpipe-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-processenvironment-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-datetime-l1-1-0.dll
%TEMP%\2fda\vcruntime140.dll
%HOMEPATH%\subfolder1\filename1.exe

Network activity

TCP

HTTP POST requests

http://de#####lexibles.info/cg/index.php

'do#########ocs.googleusercontent.com':443

'drive.google.com':443

UDP

DNS ASK drive.google.com
DNS ASK do#########ocs.googleusercontent.com
DNS ASK de#####lexibles.info

Miscellaneous

Creates and executes the following

'%HOMEPATH%\subfolder1\filename1.exe'
'%WINDIR%\syswow64\cmd.exe' /c <SYSTEM32>\timeout.exe 3 & del "filename1.exe"' (with hidden window)

Executes the following

'%WINDIR%\syswow64\cmd.exe' /c <SYSTEM32>\timeout.exe 3 & del "filename1.exe"
'%WINDIR%\syswow64\timeout.exe' 3

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

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