Resubmissions
05-06-2023 14:15
230605-rkwdyaha54 10Analysis
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max time kernel
147s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
05-06-2023 14:15
Static task
static1
Behavioral task
behavioral1
Sample
Pjlbwitnky.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Pjlbwitnky.exe
Resource
win10v2004-20230220-en
General
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Target
Pjlbwitnky.exe
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Size
30KB
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MD5
2dcabf443b7d1abcc0c2de16ecec90bc
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SHA1
e82d2533f5f7f64f0d15960dcbbf9b5b30d585c2
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SHA256
1159798d7b0504960fd5b45cf68a8589c9b3d28e56b372a93195dd009cc45f55
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SHA512
638e4986489be8a850b2991874249995764885232a344be34c2655f79aeb5aff58f674b87d8dc64afd3d9e4992f1843cc2938e493055ac391e387ea181a5dfb8
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SSDEEP
384:Yt+fcBiL2sQvTNfqMLoLb7HE3/Afi7B02PZpBvgOeHItoUtPx+0HYX:YtJerY7cb7HEvAfS/PZp92fOp+3X
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot5996089921:AAFFEnbgTY8Gt8G5jJy6llKhDg_Ha193t7c/sendMessage?chat_id=2054148913
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/4048-157-0x0000000140000000-0x0000000140024000-memory.dmp family_snakekeylogger behavioral2/memory/4048-162-0x000001D3E5B00000-0x000001D3E5B10000-memory.dmp family_snakekeylogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Pjlbwitnky.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation Pjlbwitnky.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 33 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Pjlbwitnky.exedescription pid process target process PID 4348 set thread context of 4048 4348 Pjlbwitnky.exe MSBuild.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
powershell.exeMSBuild.exepid process 696 powershell.exe 696 powershell.exe 4048 MSBuild.exe 4048 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
Pjlbwitnky.exepowershell.exeMSBuild.exedescription pid process Token: SeDebugPrivilege 4348 Pjlbwitnky.exe Token: SeDebugPrivilege 696 powershell.exe Token: SeDebugPrivilege 4048 MSBuild.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Pjlbwitnky.exedescription pid process target process PID 4348 wrote to memory of 696 4348 Pjlbwitnky.exe powershell.exe PID 4348 wrote to memory of 696 4348 Pjlbwitnky.exe powershell.exe PID 4348 wrote to memory of 4048 4348 Pjlbwitnky.exe MSBuild.exe PID 4348 wrote to memory of 4048 4348 Pjlbwitnky.exe MSBuild.exe PID 4348 wrote to memory of 4048 4348 Pjlbwitnky.exe MSBuild.exe PID 4348 wrote to memory of 4048 4348 Pjlbwitnky.exe MSBuild.exe PID 4348 wrote to memory of 4048 4348 Pjlbwitnky.exe MSBuild.exe PID 4348 wrote to memory of 4048 4348 Pjlbwitnky.exe MSBuild.exe -
outlook_office_path 1 IoCs
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Pjlbwitnky.exe"C:\Users\Admin\AppData\Local\Temp\Pjlbwitnky.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_twusfp43.mup.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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memory/696-150-0x0000027733BA0000-0x0000027733BB0000-memory.dmpFilesize
64KB
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memory/696-152-0x0000027733BA0000-0x0000027733BB0000-memory.dmpFilesize
64KB
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memory/696-151-0x0000027733BA0000-0x0000027733BB0000-memory.dmpFilesize
64KB
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memory/696-146-0x0000027733BA0000-0x0000027733BB0000-memory.dmpFilesize
64KB
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memory/696-145-0x0000027733BA0000-0x0000027733BB0000-memory.dmpFilesize
64KB
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memory/696-147-0x0000027733BA0000-0x0000027733BB0000-memory.dmpFilesize
64KB
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memory/4048-157-0x0000000140000000-0x0000000140024000-memory.dmpFilesize
144KB
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memory/4048-160-0x000001D3E5B00000-0x000001D3E5B10000-memory.dmpFilesize
64KB
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memory/4048-161-0x000001D3E5F20000-0x000001D3E60E2000-memory.dmpFilesize
1.8MB
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memory/4048-162-0x000001D3E5B00000-0x000001D3E5B10000-memory.dmpFilesize
64KB
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memory/4348-149-0x000000001AFB0000-0x000000001AFC0000-memory.dmpFilesize
64KB
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memory/4348-148-0x000000001AFF0000-0x000000001B199000-memory.dmpFilesize
1.7MB
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memory/4348-135-0x000000001CE00000-0x000000001CE22000-memory.dmpFilesize
136KB
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memory/4348-134-0x000000001AFB0000-0x000000001AFC0000-memory.dmpFilesize
64KB
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memory/4348-133-0x0000000000470000-0x000000000047C000-memory.dmpFilesize
48KB
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memory/4348-159-0x000000001AFF0000-0x000000001B199000-memory.dmpFilesize
1.7MB