Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
25/10/2022, 13:32
General
- Target formbook5.exe
- Size 718KB
- Sample221025-qs4jvachar
- SHA256 37e9f15077e6491eade2a03b73b9f48b0037c6995a5fbecdae7a942710d1dde1
Malware Config
Extracted
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formbook
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4.1
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gs25
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real-food.store
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marketdatalibrary.com
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jolidens.space
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ydental.info
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tattoosbyjayinked.com
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buytradesellpei.com
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61983.xyz
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identitysolver.xyz
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mgfang.com
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teizer.one
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staychillax.com
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ylanzarote.com
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workte.net
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maukigato.shop
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coolbag.site
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btya1r.com
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dkhaohao.shop
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zugaro.xyz
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boon168.com
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xn--80aeegahlwtdkp.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 4 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 49 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\formbook5.exe"C:\Users\Admin\AppData\Local\Temp\formbook5.exe"2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YaFLXNhWEOOsy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp38F2.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\wscript.exe"C:\Windows\SysWOW64\wscript.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmp38F2.tmp
memory/3000-151-0x0000000008460000-0x00000000085EB000-memory.dmp
memory/3000-153-0x0000000007B00000-0x0000000007C5F000-memory.dmp
memory/3000-145-0x0000000008460000-0x00000000085EB000-memory.dmp
memory/3000-155-0x0000000007B00000-0x0000000007C5F000-memory.dmp
memory/3664-144-0x00000000016F0000-0x0000000001705000-memory.dmp
memory/3664-140-0x0000000000400000-0x000000000042F000-memory.dmp
memory/3664-142-0x0000000000400000-0x000000000042F000-memory.dmp
memory/3664-143-0x0000000001800000-0x0000000001B4A000-memory.dmp
memory/3708-136-0x0000000005230000-0x000000000523A000-memory.dmp
memory/3708-135-0x0000000005360000-0x00000000053FC000-memory.dmp
memory/3708-134-0x00000000052A0000-0x0000000005332000-memory.dmp
memory/3708-133-0x0000000005910000-0x0000000005EB4000-memory.dmp
memory/3708-132-0x00000000007E0000-0x000000000089A000-memory.dmp
memory/4280-148-0x0000000000990000-0x00000000009BF000-memory.dmp
memory/4280-150-0x00000000029D0000-0x0000000002D1A000-memory.dmp
memory/4280-147-0x0000000000C20000-0x0000000000C47000-memory.dmp
memory/4280-152-0x0000000002840000-0x00000000028D4000-memory.dmp
memory/4280-154-0x0000000000990000-0x00000000009BF000-memory.dmp