Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
12/10/2022, 15:41
General
- Target OC 155093617482.exe
- Size 1.1MB
- Sample221012-s4rershgf7
- SHA256 3bbb41e4800c8e28f22939e4e966ea372c671bf54b736aa698b7ec4b0f6f09b4
Malware Config
Extracted
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formbook
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itu3
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Eia1pkLJ4UvJrn3y85XKspU=
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Z19rVAK7Wi+kKvO9Iwh4585FHwiyLDY=
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APYD5GsGooDvxNejFqFLE1zC
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j1JRONhr7tMWRxWZ
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J5CcZBE4a5/XOQ==
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yZasJ1IdOaob4kArKNbGnY4=
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4OoE75dK1r75b0kaBrHbpIw=
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xpAtoMRng+fozfQDih1ptQ==
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OCoyBsN7CC5tXiSb
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l1wiEp14wrNB
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wygnmrdeEjJkQQyR
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v5NBDqtV68sWRxWZ
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WlP6XIUpQpTa5wnKBw==
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s0pRROKpA+XvpUC33pXKspU=
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UPPTskdOa5/XOQ==
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dhjES1sDhG60HvOyOt5JqA==
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tGifiTH1jGu8OeRyxaoKr2gCvX8=
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dETjWndMEYH3oT7NAA==
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Bf58bwu7Si6XSOOczYjd
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U/WwO2IeTr85LVMPyKfCyELN
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 3 IoCs
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 34 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\OC 155093617482.exe"C:\Users\Admin\AppData\Local\Temp\OC 155093617482.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\OC 155093617482.exe"C:\Users\Admin\AppData\Local\Temp\OC 155093617482.exe"3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\wlanext.exe"C:\Windows\SysWOW64\wlanext.exe"2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/932-132-0x0000000000B10000-0x0000000000C24000-memory.dmp
memory/932-133-0x0000000005C10000-0x00000000061B4000-memory.dmp
memory/932-134-0x0000000005660000-0x00000000056F2000-memory.dmp
memory/932-135-0x00000000055C0000-0x00000000055CA000-memory.dmp
memory/932-136-0x000000000CBC0000-0x000000000CC5C000-memory.dmp
memory/932-137-0x0000000001180000-0x00000000011E6000-memory.dmp
memory/2440-144-0x0000000001C10000-0x0000000001F5A000-memory.dmp
memory/2440-141-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2440-143-0x0000000000401000-0x000000000042F000-memory.dmp
memory/2440-145-0x00000000011F0000-0x0000000001200000-memory.dmp
memory/2440-150-0x0000000000401000-0x000000000042F000-memory.dmp
memory/2440-139-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2440-148-0x0000000000400000-0x000000000042F000-memory.dmp
memory/3068-154-0x0000000008780000-0x00000000088D5000-memory.dmp
memory/3068-146-0x0000000008600000-0x0000000008780000-memory.dmp
memory/3068-156-0x0000000008780000-0x00000000088D5000-memory.dmp
memory/4900-149-0x0000000000D70000-0x0000000000D87000-memory.dmp
memory/4900-152-0x0000000000D90000-0x00000000010DA000-memory.dmp
memory/4900-153-0x0000000000CB0000-0x0000000000D3F000-memory.dmp
memory/4900-151-0x0000000000630000-0x000000000065D000-memory.dmp
memory/4900-155-0x0000000000630000-0x000000000065D000-memory.dmp