Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-en-20220112 - submitted
24/02/2022, 10:34
General
- Target INV-DHL2020386585.exe
- Size 496KB
- Sample220224-ml4pgseahj
- SHA256 e267c90f997f2006197fa6cfc8c36255fbb2b317fba5fcf161dd18cfb9c0943f
Malware Config
Extracted
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formbook
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4.1
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cn31
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jdklawnmaintenance.com
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honshukensetsu.com
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physicsengineering.com
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xs.business
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carrierguard.net
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glasses-shop.online
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fwqim.icu
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drmoedavirtual.com
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mindmedicine.institute
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pe9dze.site
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domise.xyz
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appaloosa.design
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msiems.info
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wersling.com
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proeasyit.com
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mercatelectric.com
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utahtitle9lawyer.com
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happi-lyfe.com
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miamihumanfactor.com
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14239765.club
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
- Executes dropped EXE 2 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 58 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 8 IoCs
- Suspicious use of FindShellTrayWindow 2 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 AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\INV-DHL2020386585.exe"C:\Users\Admin\AppData\Local\Temp\INV-DHL2020386585.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\dycmzr.exeC:\Users\Admin\AppData\Local\Temp\dycmzr.exe C:\Users\Admin\AppData\Local\Temp\xoqjj3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\dycmzr.exeC:\Users\Admin\AppData\Local\Temp\dycmzr.exe C:\Users\Admin\AppData\Local\Temp\xoqjj4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\wlanext.exe"C:\Windows\SysWOW64\wlanext.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:\Users\Admin\AppData\Local\Temp\dycmzr.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2084-144-0x0000000002E80000-0x0000000002F13000-memory.dmp
memory/2084-143-0x0000000003040000-0x000000000338A000-memory.dmp
memory/2084-142-0x0000000002740000-0x000000000276F000-memory.dmp
memory/2084-141-0x0000000000080000-0x0000000000097000-memory.dmp
memory/2364-140-0x0000000008020000-0x000000000815F000-memory.dmp
memory/2364-145-0x00000000083B0000-0x00000000084F0000-memory.dmp
memory/2916-139-0x0000000000EB0000-0x0000000000EC4000-memory.dmp
memory/2916-138-0x000000000041F000-0x0000000000420000-memory.dmp
memory/2916-136-0x0000000000A00000-0x0000000000D4A000-memory.dmp
memory/2916-134-0x0000000000400000-0x000000000042F000-memory.dmp