Analysis
- max time kernel
148s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
04/05/2022, 14:58
General
- Target 5df93ab049f7e6b8221ba6ec6187898b.exe
- Size 17KB
- Sample220504-sb6c8aghan
- SHA256 7af1842cdbd37f5e68d3d90350fdafe36d78cb62dee2fbcb2a4a4a9184b8d95c
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 2 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\5df93ab049f7e6b8221ba6ec6187898b.exe"C:\Users\Admin\AppData\Local\Temp\5df93ab049f7e6b8221ba6ec6187898b.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\msdt.exe"C:\Windows\SysWOW64\msdt.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/332-140-0x0000000000EB0000-0x0000000000EC4000-memory.dmp
memory/332-139-0x0000000000ED0000-0x000000000121A000-memory.dmp
memory/332-137-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2504-143-0x0000000000280000-0x00000000002D7000-memory.dmp
memory/2504-145-0x0000000002D10000-0x000000000305A000-memory.dmp
memory/2504-144-0x0000000000CE0000-0x0000000000D0F000-memory.dmp
memory/2504-147-0x0000000002AB0000-0x0000000002B43000-memory.dmp
memory/2996-141-0x0000000008130000-0x00000000082CA000-memory.dmp
memory/2996-148-0x0000000007BC0000-0x0000000007D00000-memory.dmp
memory/3844-133-0x0000000004C20000-0x0000000004C2A000-memory.dmp
memory/3844-132-0x0000000004B70000-0x0000000004C02000-memory.dmp
memory/3844-130-0x00000000001C0000-0x00000000001CA000-memory.dmp
memory/3844-131-0x0000000005020000-0x00000000055C4000-memory.dmp