Analysis
- max time kernel
150s - max time network
153s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
- submitted
16/01/2023, 12:16
General
- Target TF_ 0609162023.exe
- Size 261KB
- Sample230116-pff3caeg69
- SHA256 53ef5cf03618cf6124b33c3ef3fbb97a993b9612b2fff665bb7de2fec5d7dfac
Malware Config
Extracted
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formbook
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4.1
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vy03
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starkling.net
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bernardesdigital.com
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vancitycleaners.com
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heritagedata.africa
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bankofindia.info
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0xaf5a.net
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bsewrstuiskd.xyz
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cobblestone-minerals-lp.info
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efefbee.buzz
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claudiagassmann.com
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consultmvel.com
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foxdistribuidoraltda.com
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car-deals-92924.com
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debenvalleydesigns.co.uk
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ifkosterakerfk.com
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gxyzqq.com
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brightorganik.com
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extensiondrawingscotland.co.uk
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7570080.com
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codbox.co.uk
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 28 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 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 behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\TF_ 0609162023.exe"C:\Users\Admin\AppData\Local\Temp\TF_ 0609162023.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\udifolg.exe"C:\Users\Admin\AppData\Local\Temp\udifolg.exe" C:\Users\Admin\AppData\Local\Temp\knqrwk.g3⤵
- 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\udifolg.exe"C:\Users\Admin\AppData\Local\Temp\udifolg.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\cmmon32.exe"C:\Windows\SysWOW64\cmmon32.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\udifolg.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
icmydneht.qx
knqrwk.g
udifolg.exe
udifolg.exe
udifolg.exe
udifolg.exe
udifolg.exe
udifolg.exe
memory/692-77-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/692-75-0x0000000001D80000-0x0000000001E14000-memory.dmp
memory/692-74-0x0000000001F10000-0x0000000002213000-memory.dmp
memory/692-72-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/692-71-0x00000000000F0000-0x00000000000FD000-memory.dmp
memory/944-67-0x00000000008C0000-0x0000000000BC3000-memory.dmp
memory/944-68-0x0000000000480000-0x0000000000495000-memory.dmp
memory/944-66-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1244-69-0x0000000005FD0000-0x0000000006107000-memory.dmp
memory/1244-76-0x0000000006B40000-0x0000000006C6C000-memory.dmp
memory/1244-78-0x0000000006B40000-0x0000000006C6C000-memory.dmp
memory/1820-54-0x00000000757B1000-0x00000000757B3000-memory.dmp