Analysis
- max time kernel
147s - max time network
142s - platform
windows7_x64 - resource
win7v20201028 - submitted
08/04/2021, 08:51
General
- Target PO.exe
- Size 222KB
- Sample210408-cs76s8zdfe
- SHA256 ce27bdaa30fc5a712b41888b529f52c87f90b9d196b975d47ec9b5236b48cebc
Malware Config
Extracted
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formbook
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4.1
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http://www.riceandginger.com/fcn/
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bellee-select.com
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unlock-motorola.com
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courtneyrunyon.com
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hnzywjz.com
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retrievingbest.net
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ayescarrental.com
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beyoutifulblessings.com
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heritagediscovery.net
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fasoum.com
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wbz.xyz
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lownak.com
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alinkarmay.com
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coffeyquiltco.com
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validdreamers.com
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yuksukcu.club
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buildnextfrc.com
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avantfarme.com
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xyfs360.com
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holisticpacific.com
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banejia.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 2 IoCs
- Deletes itself 1 IoCs
- Loads dropped DLL 1 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.
- Suspicious behavior: EnumeratesProcesses 30 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 4 IoCs
- Suspicious use of SendNotifyMessage 4 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\PO.exe"C:\Users\Admin\AppData\Local\Temp\PO.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PO.exe"C:\Users\Admin\AppData\Local\Temp\PO.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\systray.exe"C:\Windows\SysWOW64\systray.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\PO.exe"3⤵
- Deletes itself
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/676-75-0x0000000000930000-0x00000000009C3000-memory.dmp
memory/676-74-0x00000000020C0000-0x00000000023C3000-memory.dmp
memory/676-73-0x00000000000C0000-0x00000000000EE000-memory.dmp
memory/676-72-0x0000000000CB0000-0x0000000000CB5000-memory.dmp
memory/1244-69-0x0000000006A80000-0x0000000006C1C000-memory.dmp
memory/1244-76-0x0000000006C20000-0x0000000006D96000-memory.dmp
memory/1244-67-0x0000000003BF0000-0x0000000003CED000-memory.dmp
memory/1324-64-0x0000000000400000-0x000000000042E000-memory.dmp
memory/1324-68-0x00000000006D0000-0x00000000006E4000-memory.dmp
memory/1324-65-0x0000000000770000-0x0000000000A73000-memory.dmp
memory/1324-66-0x00000000002D0000-0x00000000002E4000-memory.dmp
memory/1336-60-0x0000000075DE1000-0x0000000075DE3000-memory.dmp
memory/1336-63-0x00000000003D0000-0x00000000003D2000-memory.dmp