Analysis
- max time kernel
148s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
24/10/2022, 09:26
General
- Target Shipment Documentation-REF GZARX019-10-22.bat.exe
- Size 332KB
- Sample221024-ld6y7sffh3
- SHA256 82a31318a931319c6478e3d03d14e95e73e5e989fd4f7636114b44cd30d1dfca
Malware Config
Extracted
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formbook
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pfgc
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hBGNx7LOg1/1V9He6Lr1odiL8A==
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JUtMWPUI+jYE3h2D0VXJrkViyWlklw==
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9Onb+iNxE//TbnVsww==
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+zlULMoiC8l+8Tev2wK6Xpt3qkQ2
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vv/ckxYzTsV3W3KwMKjDf1rK+A==
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fiNtn8AUmEDcSGooP0OzpNX0
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Vo+DIT5uE/PEbnVsww==
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JzMzXJDojoBk5EcxFTKznOD+
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hxRyvNTzW6eTCQ==
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/CcTv23E93dcQXf9RUb+
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n6ODTfEg31QE9F0=
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V9k3j8Pew4FJqasspfOBQNk=
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mq+vfSOVMzCmhwN1wUeUUME41Pw=
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1frRhiXBVRSqDTLo46vXXNc=
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WP9xcxRKdPLGtCeZ8VMcCsA=
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dIBJ53JHoTO5
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tlakzPSKiYl02hJYqJQdC8I=
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EiPtnEnwhz/bMaJp+a0cj8g=
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s7mOSbbN8GbPM3von61MR8E41Pw=
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HFhN1/bX7Umz
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Drops file in System32 directory 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 22 IoCs
- Suspicious behavior: MapViewOfSection 9 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Shipment Documentation-REF GZARX019-10-22.bat.exe"C:\Users\Admin\AppData\Local\Temp\Shipment Documentation-REF GZARX019-10-22.bat.exe"2⤵
- Checks QEMU agent file
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Shipment Documentation-REF GZARX019-10-22.bat.exe"C:\Users\Admin\AppData\Local\Temp\Shipment Documentation-REF GZARX019-10-22.bat.exe"3⤵
- Checks QEMU agent file
- Checks computer location settings
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\SysWOW64\rundll32.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
System.dll
memory/376-136-0x0000000077080000-0x0000000077223000-memory.dmp
memory/376-134-0x00000000051F0000-0x00000000052F1000-memory.dmp
memory/376-135-0x00007FF8E9F10000-0x00007FF8EA105000-memory.dmp
memory/376-148-0x00000000051F0000-0x00000000052F1000-memory.dmp
memory/376-139-0x0000000077080000-0x0000000077223000-memory.dmp
memory/376-133-0x00000000051F0000-0x00000000052F1000-memory.dmp
memory/1172-161-0x0000000002790000-0x0000000002ADA000-memory.dmp
memory/1172-162-0x0000000002610000-0x000000000269F000-memory.dmp
memory/1172-164-0x00000000008E0000-0x000000000090D000-memory.dmp
memory/1172-159-0x0000000000DF0000-0x0000000000E04000-memory.dmp
memory/1172-160-0x00000000008E0000-0x000000000090D000-memory.dmp
memory/2432-163-0x0000000007CC0000-0x0000000007E14000-memory.dmp
memory/2432-165-0x0000000007CC0000-0x0000000007E14000-memory.dmp
memory/2432-153-0x0000000007970000-0x0000000007A68000-memory.dmp
memory/2432-150-0x00000000076F0000-0x0000000007877000-memory.dmp
memory/3964-140-0x0000000001660000-0x0000000001760000-memory.dmp
memory/3964-149-0x000000001D350000-0x000000001D360000-memory.dmp
memory/3964-151-0x0000000000401000-0x0000000001654000-memory.dmp
memory/3964-152-0x0000000000190000-0x00000000001A0000-memory.dmp
memory/3964-147-0x000000001D850000-0x000000001DB9A000-memory.dmp
memory/3964-154-0x0000000077080000-0x0000000077223000-memory.dmp
memory/3964-145-0x0000000000401000-0x0000000001654000-memory.dmp
memory/3964-156-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3964-157-0x0000000001660000-0x0000000001760000-memory.dmp
memory/3964-158-0x0000000077080000-0x0000000077223000-memory.dmp
memory/3964-146-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3964-144-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3964-143-0x0000000077080000-0x0000000077223000-memory.dmp
memory/3964-142-0x00007FF8E9F10000-0x00007FF8EA105000-memory.dmp
memory/3964-141-0x0000000001660000-0x0000000001760000-memory.dmp
memory/3964-138-0x0000000000400000-0x0000000001654000-memory.dmp