Analysis
- max time kernel
189s - max time network
197s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
09/05/2022, 01:45
General
- Target 5c106f1abf307d69c1e95bf13598b89a.exe
- Size 19KB
- Sample220509-b6eejsehaj
- SHA256 520f7cca2676f2ce7142e200ea8b52a4e441e59ab44778e513203c1f4429efe4
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 32 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\5c106f1abf307d69c1e95bf13598b89a.exe"C:\Users\Admin\AppData\Local\Temp\5c106f1abf307d69c1e95bf13598b89a.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\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\help.exe"C:\Windows\SysWOW64\help.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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C:\Windows\SysWOW64\timeout.exetimeout 21⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1972-139-0x0000000001600000-0x0000000001614000-memory.dmp
memory/1972-135-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1972-137-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1972-138-0x0000000001690000-0x00000000019DA000-memory.dmp
memory/2536-130-0x0000000000540000-0x000000000054A000-memory.dmp
memory/2536-131-0x0000000011EB0000-0x00000000124C8000-memory.dmp
memory/3172-140-0x0000000003740000-0x0000000003821000-memory.dmp
memory/3172-147-0x0000000008AF0000-0x0000000008B9C000-memory.dmp
memory/4712-142-0x0000000000470000-0x0000000000477000-memory.dmp
memory/4712-143-0x0000000000B90000-0x0000000000BBF000-memory.dmp
memory/4712-145-0x0000000001480000-0x00000000017CA000-memory.dmp
memory/4712-146-0x00000000012F0000-0x0000000001383000-memory.dmp