Analysis
- max time kernel
150s - max time network
138s - platform
windows10_x64 - resource
win10v20210410 - submitted
01/06/2021, 06:32
General
- Target AWB 224000318400 - 224000318040.exe
- Size 229KB
- Sample210601-4dn9fv112x
- SHA256 d3b19cf0506617e6ac964656ebfe51f1c3066337b66bfdb48bd31b44ff61e7fb
Malware Config
Extracted
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formbook
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4.1
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http://www.updatesz.com/hlx/
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firo.store
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unmeasured-grace.com
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burger-ff.com
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alcargomoversllc.com
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brianratkevich.com
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semugaralara01.net
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ngalvision.com
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texaslearningpods.com
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ontarioboatcharters.com
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kleinrugcleaning.com
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michaelvancebromfield.com
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habitameya.com
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elyoma.com
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worldtvepisode.com
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masatakahorie.com
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jumpinginfo.com
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hfjxhs.com
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bf-swiss.com
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rvingbus.com
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suxfi.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 2 IoCs
- Loads dropped DLL 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 60 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\AWB 224000318400 - 224000318040.exe"C:\Users\Admin\AppData\Local\Temp\AWB 224000318400 - 224000318040.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\AWB 224000318400 - 224000318040.exe"C:\Users\Admin\AppData\Local\Temp\AWB 224000318400 - 224000318040.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\mstsc.exe"C:\Windows\SysWOW64\mstsc.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\AWB 224000318400 - 224000318040.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2568-126-0x0000000004A40000-0x0000000004AD3000-memory.dmp
memory/2568-125-0x0000000004680000-0x00000000049A0000-memory.dmp
memory/2568-123-0x00000000030D0000-0x00000000030FE000-memory.dmp
memory/2568-122-0x0000000000020000-0x000000000031C000-memory.dmp
memory/2716-120-0x0000000005180000-0x000000000530E000-memory.dmp
memory/2716-127-0x0000000005310000-0x0000000005435000-memory.dmp
memory/3728-119-0x00000000006D0000-0x00000000006E4000-memory.dmp
memory/3728-118-0x00000000009B0000-0x0000000000CD0000-memory.dmp
memory/3728-117-0x0000000000400000-0x000000000042E000-memory.dmp