Analysis
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max time kernel
93s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10-01-2025 14:05
Static task
static1
Behavioral task
behavioral1
Sample
PO17971.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
PO17971.exe
Resource
win10v2004-20241007-en
General
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Target
PO17971.exe
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Size
669KB
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MD5
7a01ce7b443e4c2f5344ef3ec0e21538
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SHA1
90f517920d408f9db6cdbeb6f67ba7c62708c851
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SHA256
ee6993e7afbf9a039db981542c0250e22fcaa01434db911732851c9e52bb38b6
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SHA512
9d14f5fd61cad5696b70bb2ceecadd495b41ebca1f2691d4dce8ccd1504db3c3cf58889df8eb799bda19d481803b727d55867512614f4733116dda77a22d26fc
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SSDEEP
12288:mEwl9Z7a0GM4Rb9So1JELBYaKMwzyrdowvUI69boqatgOr/2MlxSTtXVHM3IN:wawLNOwd69+tgyuMloTpDN
Malware Config
Extracted
vipkeylogger
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 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 624 powershell.exe 664 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation PO17971.exe -
Uses the VBS compiler for execution 1 TTPs
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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 17 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4608 set thread context of 4884 4608 PO17971.exe 93 -
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 5 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 powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vbc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PO17971.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3472 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 4608 PO17971.exe 624 powershell.exe 664 powershell.exe 4608 PO17971.exe 4884 vbc.exe 664 powershell.exe 624 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4608 PO17971.exe Token: SeDebugPrivilege 624 powershell.exe Token: SeDebugPrivilege 664 powershell.exe Token: SeDebugPrivilege 4884 vbc.exe -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 4608 wrote to memory of 624 4608 PO17971.exe 87 PID 4608 wrote to memory of 624 4608 PO17971.exe 87 PID 4608 wrote to memory of 624 4608 PO17971.exe 87 PID 4608 wrote to memory of 664 4608 PO17971.exe 89 PID 4608 wrote to memory of 664 4608 PO17971.exe 89 PID 4608 wrote to memory of 664 4608 PO17971.exe 89 PID 4608 wrote to memory of 3472 4608 PO17971.exe 91 PID 4608 wrote to memory of 3472 4608 PO17971.exe 91 PID 4608 wrote to memory of 3472 4608 PO17971.exe 91 PID 4608 wrote to memory of 4884 4608 PO17971.exe 93 PID 4608 wrote to memory of 4884 4608 PO17971.exe 93 PID 4608 wrote to memory of 4884 4608 PO17971.exe 93 PID 4608 wrote to memory of 4884 4608 PO17971.exe 93 PID 4608 wrote to memory of 4884 4608 PO17971.exe 93 PID 4608 wrote to memory of 4884 4608 PO17971.exe 93 PID 4608 wrote to memory of 4884 4608 PO17971.exe 93 PID 4608 wrote to memory of 4884 4608 PO17971.exe 93 PID 4608 wrote to memory of 4884 4608 PO17971.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\PO17971.exe"C:\Users\Admin\AppData\Local\Temp\PO17971.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4608 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PO17971.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:624
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TZRtlifudvO.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:664
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TZRtlifudvO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF54D.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3472
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4884
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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
1KB
MD55a8585b45fc88b4587a96771a03d009e
SHA17aa78d9afb83ba39e5db40e0d99866c00e9bba8e
SHA2560deda633a02c78f18bcb0fbc372484906b6643380f6b9ccefc10c27664af097a
SHA512430754ae33a0adfbc72951c15d068bbcf9cdc020480507bd89d2ec42705559b93dc02d267a8c564d502c0997177f20d95fdc52423298560104050cb1e315b27e