Analysis
- max time kernel
150s - max time network
149s - platform
windows10_x64 - resource
win10-en - submitted
01/09/2021, 15:14
General
- Target Factura proforma # 65476_PDF.exe
- Size 523KB
- Sample210901-rml3gg9fp2
- SHA256 b9c7b6e3537f8278ce7338f46ec1b658bb0ed0d9cf5b4c04e8d6427ded11f7b2
Malware Config
Extracted
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formbook
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4.1
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vd9n
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http://www.constructioncleanup.pro/vd9n/
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theunwrappedcollective.com
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seckj-ic.com
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tyresandover.com
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thetrophyworld.com
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fonggrconstruction.com
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hopiproject.com
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sktitle.com
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charlotteobscurer.com
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qjuhe.com
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girlzglitter.com
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createmylawn.com
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hempcbgpill.com
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zzdfdzkj.com
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shreehariessential.com
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226sm.com
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getcupscall.com
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neuralviolin.com
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sanskaar.life
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xn--fhqrm54yyukopc.com
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togetherx4fantasy5star.today
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 3 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.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 45 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of UnmapMainImage 1 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 UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Factura proforma # 65476_PDF.exe"C:\Users\Admin\AppData\Local\Temp\Factura proforma # 65476_PDF.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rASCqKl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCA4B.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"3⤵
- 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\RegSvcs.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1656-126-0x0000000000400000-0x000000000042E000-memory.dmp
memory/1656-129-0x0000000001080000-0x0000000001094000-memory.dmp
memory/1656-128-0x0000000001520000-0x0000000001840000-memory.dmp
memory/1812-121-0x0000000007EE0000-0x0000000007EF6000-memory.dmp
memory/1812-122-0x0000000009740000-0x0000000009741000-memory.dmp
memory/1812-123-0x0000000009FF0000-0x000000000A05C000-memory.dmp
memory/1812-124-0x0000000002FA0000-0x0000000002FD7000-memory.dmp
memory/1812-120-0x0000000007AA0000-0x0000000007F9E000-memory.dmp
memory/1812-119-0x0000000007CF0000-0x0000000007CF1000-memory.dmp
memory/1812-118-0x0000000007B80000-0x0000000007B81000-memory.dmp
memory/1812-117-0x0000000007FA0000-0x0000000007FA1000-memory.dmp
memory/1812-115-0x0000000000DE0000-0x0000000000DE1000-memory.dmp
memory/2708-137-0x0000000005070000-0x00000000051CE000-memory.dmp
memory/2708-130-0x0000000004ED0000-0x0000000005070000-memory.dmp
memory/3888-134-0x0000000000CC0000-0x0000000000CEE000-memory.dmp
memory/3888-133-0x0000000001340000-0x0000000001347000-memory.dmp
memory/3888-135-0x0000000000D90000-0x0000000000E3E000-memory.dmp
memory/3888-136-0x00000000011D0000-0x0000000001263000-memory.dmp