Analysis
- max time kernel
153s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
09/12/2022, 10:20
General
- Target Beyan bilgileri.exe
- Size 320KB
- Sample221209-mc4ccsch78
- SHA256 bcb4b428f2487d1dfc2d5f36fdd7f334e7915a5fad15f46835f6a8420002c327
Malware Config
Extracted
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formbook
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4.1
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tc10
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mwigyu.com
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sepuluholx.com
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nsdigitalagency.com
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horrorkore.com
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santaclaracoimbrakarate.com
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myeternalsummer.com
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laosmidnight-lotto.com
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haremp.xyz
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boyace.top
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unusualwithdrawal.com
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wildflowerkidsri.com
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backlitvps.dev
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topwellgas.com
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k3nnsworld3.com
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wanbang.xyz
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cntvc.net
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sjcamden.church
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pussit24.com
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claml.com
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statisticsturkey.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 3 IoCs
- Executes dropped EXE 2 IoCs
- Drops file in System32 directory 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.
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 58 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 3 IoCs
- Suspicious use of SendNotifyMessage 3 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Beyan bilgileri.exe"C:\Users\Admin\AppData\Local\Temp\Beyan bilgileri.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\sxdjahtyxs.exe"C:\Users\Admin\AppData\Local\Temp\sxdjahtyxs.exe" C:\Users\Admin\AppData\Local\Temp\juhfdccvz.zs3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\sxdjahtyxs.exe"C:\Users\Admin\AppData\Local\Temp\sxdjahtyxs.exe"4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmstp.exe"C:\Windows\SysWOW64\cmstp.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\sxdjahtyxs.exe"3⤵
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
crqsdy.s
juhfdccvz.zs
sxdjahtyxs.exe
sxdjahtyxs.exe
sxdjahtyxs.exe
memory/2408-139-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2408-140-0x0000000000A70000-0x0000000000DBA000-memory.dmp
memory/2408-141-0x00000000006D0000-0x00000000006E4000-memory.dmp
memory/3004-142-0x00000000036A0000-0x00000000037E3000-memory.dmp
memory/3004-149-0x0000000008B40000-0x0000000008C09000-memory.dmp
memory/3004-151-0x0000000008B40000-0x0000000008C09000-memory.dmp
memory/3012-145-0x00000000004B0000-0x00000000004C6000-memory.dmp
memory/3012-147-0x0000000002670000-0x00000000029BA000-memory.dmp
memory/3012-146-0x00000000005D0000-0x00000000005FF000-memory.dmp
memory/3012-148-0x00000000024E0000-0x0000000002573000-memory.dmp
memory/3012-150-0x00000000005D0000-0x00000000005FF000-memory.dmp