Analysis
- max time kernel
147s - max time network
113s - platform
windows7_x64 - resource
win7-20220812-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
- Loads dropped DLL 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.
- Suspicious behavior: EnumeratesProcesses 27 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- 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⤵
- Loads dropped DLL
- 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
- Loads dropped DLL
- 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\wlanext.exe"C:\Windows\SysWOW64\wlanext.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\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
tbxbna.exe
tbxbna.exe
tbxbna.exe
memory/1324-69-0x0000000004DB0000-0x0000000004EA8000-memory.dmp
memory/1324-78-0x00000000063A0000-0x00000000064A2000-memory.dmp
memory/1324-76-0x00000000063A0000-0x00000000064A2000-memory.dmp
memory/1892-73-0x0000000002030000-0x0000000002333000-memory.dmp
memory/1892-71-0x0000000000C10000-0x0000000000C26000-memory.dmp
memory/1892-72-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/1892-75-0x00000000008B0000-0x0000000000943000-memory.dmp
memory/1892-77-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/1928-68-0x0000000000340000-0x0000000000354000-memory.dmp
memory/1928-67-0x00000000008B0000-0x0000000000BB3000-memory.dmp
memory/1928-66-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1980-54-0x0000000075981000-0x0000000075983000-memory.dmp