Analysis
- max time kernel
149s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
21/11/2022, 16:28
General
- Target proforma corregida.exe
- Size 268KB
- Sample221121-tym1tshd22
- SHA256 6665e9becfbcd071f9d5f1e8635dba4801a354dfb0bee53f4efafecb6146bba6
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
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Enumerates system info in registry 2 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 60 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 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 WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\proforma corregida.exe"C:\Users\Admin\AppData\Local\Temp\proforma corregida.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\tbxbna.exe"C:\Users\Admin\AppData\Local\Temp\tbxbna.exe" C:\Users\Admin\AppData\Local\Temp\hgmgdm.jhu3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\tbxbna.exe"C:\Users\Admin\AppData\Local\Temp\tbxbna.exe" C:\Users\Admin\AppData\Local\Temp\hgmgdm.jhu4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\chkdsk.exe"C:\Windows\SysWOW64\chkdsk.exe"2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- 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\tbxbna.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
hgmgdm.jhu
oedxdpy.ocq
tbxbna.exe
tbxbna.exe
tbxbna.exe
memory/2476-142-0x0000000007EA0000-0x0000000007FEC000-memory.dmp
memory/2476-151-0x0000000002960000-0x0000000002A5C000-memory.dmp
memory/2476-150-0x0000000002960000-0x0000000002A5C000-memory.dmp
memory/5040-147-0x00000000017C0000-0x0000000001B0A000-memory.dmp
memory/5040-145-0x0000000001080000-0x00000000010AF000-memory.dmp
memory/5040-144-0x0000000000C00000-0x0000000000C0A000-memory.dmp
memory/5040-148-0x0000000001080000-0x00000000010AF000-memory.dmp
memory/5040-149-0x0000000001660000-0x00000000016F3000-memory.dmp
memory/5052-141-0x00000000006D0000-0x00000000006E4000-memory.dmp
memory/5052-140-0x0000000000B50000-0x0000000000E9A000-memory.dmp
memory/5052-139-0x0000000000400000-0x000000000042F000-memory.dmp