Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
05/05/2022, 10:34
General
- Target 6918e243c51505d5769b394fbf8e29c5.exe
- Size 12KB
- Sample220505-ml4pgsaefj
- SHA256 5bc5d93665bc0242f56ecf2f76c0d25bfb8d78536ad9ea4fea4e723500acf59b
Malware Config
Extracted
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formbook
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4.1
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s4s9
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qianyuandianshang.com
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bernardklein.com
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slhomeservices.com
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findasaas.com
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janellelancaster.xyz
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umkpro.site
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nr6949.online
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mersquare.club
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lanariproperties.com
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3rdeyefocused.com
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giftexpress8260.xyz
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hilleleven.xyz
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beajod.com
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kosazs.online
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ishare.team
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mb314.com
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xjjinxingda.com
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ayekooprojectamazing.com
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ballsybanter.com
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todayshoppingbd.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
- Formbook Payload 3 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.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 52 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 18 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\6918e243c51505d5769b394fbf8e29c5.exe"C:\Users\Admin\AppData\Local\Temp\6918e243c51505d5769b394fbf8e29c5.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\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout 23⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout 24⤵
- Delays execution with timeout.exe
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmmon32.exe"C:\Windows\SysWOW64\cmmon32.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\MSBuild.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/796-142-0x0000000002D30000-0x0000000002E2F000-memory.dmp
memory/796-149-0x0000000002E30000-0x0000000002F09000-memory.dmp
memory/2004-140-0x0000000001200000-0x000000000154A000-memory.dmp
memory/2004-137-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2004-139-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2004-141-0x00000000011C0000-0x00000000011D4000-memory.dmp
memory/3348-133-0x0000000004DB0000-0x0000000004DBA000-memory.dmp
memory/3348-130-0x0000000000260000-0x0000000000268000-memory.dmp
memory/3348-132-0x0000000004CB0000-0x0000000004D42000-memory.dmp
memory/3348-131-0x0000000005260000-0x0000000005804000-memory.dmp
memory/4432-146-0x0000000000480000-0x00000000004AF000-memory.dmp
memory/4432-145-0x00000000007A0000-0x00000000007AC000-memory.dmp
memory/4432-147-0x0000000002460000-0x00000000027AA000-memory.dmp
memory/4432-148-0x00000000022A0000-0x0000000002333000-memory.dmp