Analysis
- max time kernel
151s - max time network
150s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
18/10/2021, 02:19
General
- Target Invoice 3284 sales invoice.exe
- Size 416KB
- Sample211018-crvcwsdac4
- SHA256 e827c29f504045d8e6d8a2eb622a571f83e1bf9afaa8f1b839af76f457b45135
Malware Config
Extracted
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formbook
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4.1
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r4gk
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http://www.aprilsaak.quest/r4gk/
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quantalix.com
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animalblog-eggs.com
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039skz.xyz
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guttas.net
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lasantadayparty.com
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protegerfinanceservices.com
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vixtest.xyz
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digitaleconomy.global
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0xpax.xyz
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mobilehome1688.com
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themotionpartners.com
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valueney.com
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hattuafhv.quest
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js0061gj.net
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360metaverse.biz
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seculardata.com
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346727688.xyz
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smartmapom.com
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moksel.com
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exoduswatchco.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 4 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.
- 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 48 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 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 WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Invoice 3284 sales invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice 3284 sales invoice.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\kHyhrJVfXUoPwc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp43FA.tmp"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Invoice 3284 sales invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice 3284 sales invoice.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.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\Invoice 3284 sales invoice.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1628-115-0x0000000000CD0000-0x0000000000CD1000-memory.dmp
memory/1628-117-0x0000000005A30000-0x0000000005A31000-memory.dmp
memory/1628-118-0x00000000055D0000-0x00000000055D1000-memory.dmp
memory/1628-119-0x0000000005570000-0x0000000005571000-memory.dmp
memory/1628-120-0x0000000007AD0000-0x0000000007AD1000-memory.dmp
memory/1628-121-0x0000000005A10000-0x0000000005A18000-memory.dmp
memory/1628-122-0x0000000005530000-0x0000000005A2E000-memory.dmp
memory/1628-123-0x0000000007470000-0x00000000074C1000-memory.dmp
memory/1860-139-0x00000000046C0000-0x0000000004753000-memory.dmp
memory/1860-138-0x00000000047C0000-0x0000000004AE0000-memory.dmp
memory/1860-136-0x0000000000930000-0x0000000000D6F000-memory.dmp
memory/1860-137-0x0000000003070000-0x000000000309F000-memory.dmp
memory/3000-133-0x0000000005020000-0x0000000005161000-memory.dmp
memory/3000-129-0x0000000004EC0000-0x0000000005013000-memory.dmp
memory/3000-140-0x00000000024F0000-0x00000000025EA000-memory.dmp
memory/4072-132-0x0000000000E50000-0x0000000000E64000-memory.dmp
memory/4072-125-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4072-131-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4072-130-0x0000000000DF0000-0x0000000000E04000-memory.dmp
memory/4072-128-0x0000000001150000-0x0000000001470000-memory.dmp