Analysis
- max time kernel
150s - max time network
150s - platform
windows10_x64 - resource
win10v20210408 - submitted
08/08/2021, 06:08
General
- Target Nueva orden de compra.exe
- Size 946KB
- Sample210808-rtr7fbcf22
- SHA256 df6ade5c4e7c4f0e82aca32d744b6f8762d2dd82a98b7bda97e42748d488a661
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.
- suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
- 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 42 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 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\Nueva orden de compra.exe"C:\Users\Admin\AppData\Local\Temp\Nueva orden de compra.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bIcyzp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2403.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\rundll32.exe"C:\Windows\SysWOW64\rundll32.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
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Downloads
memory/652-116-0x0000000004CB0000-0x0000000004CB1000-memory.dmp
memory/652-117-0x0000000005290000-0x0000000005291000-memory.dmp
memory/652-118-0x0000000004E30000-0x0000000004E31000-memory.dmp
memory/652-119-0x0000000004D70000-0x0000000004D71000-memory.dmp
memory/652-120-0x0000000004F90000-0x0000000004F91000-memory.dmp
memory/652-121-0x0000000004D90000-0x000000000528E000-memory.dmp
memory/652-122-0x0000000008700000-0x0000000008713000-memory.dmp
memory/652-123-0x00000000088B0000-0x000000000894C000-memory.dmp
memory/652-124-0x000000000B070000-0x000000000B0A0000-memory.dmp
memory/652-114-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/1420-127-0x0000000000400000-0x000000000042E000-memory.dmp
memory/1420-130-0x0000000001180000-0x0000000001194000-memory.dmp
memory/1420-129-0x0000000000E30000-0x0000000001150000-memory.dmp
memory/2068-133-0x0000000001380000-0x0000000001393000-memory.dmp
memory/2068-134-0x0000000000360000-0x000000000038E000-memory.dmp
memory/2068-136-0x00000000047A0000-0x0000000004AC0000-memory.dmp
memory/2068-137-0x0000000000ED0000-0x0000000000F63000-memory.dmp
memory/2724-131-0x0000000006EF0000-0x000000000704C000-memory.dmp
memory/2724-138-0x0000000002CA0000-0x0000000002D8B000-memory.dmp