Analysis
- max time kernel
147s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
08/02/2023, 15:20
General
- Target HXM030~0.EXE.exe
- Size 296KB
- Sample230208-sqrhlsbe6w
- SHA256 8770f9d32f3b5b26267d6320c355f576df3d09e49d58e50ac16d044f4cf2cf54
Malware Config
Extracted
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formbook
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4.1
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rs11
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happyluxtz.com
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kuloie.xyz
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lehavre-sa.com
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aruvyam.com
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souryoga19.net
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elgallo1071.com
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growcentralspreadunlimited.com
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ahzhaohu.com
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nanispa.co.uk
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ascendthailand.com
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mesaseventos.net
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endviolence.ooo
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grewcomfort.com
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expertservces.com
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adventurepsychologist.com
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delcerrorealty.com
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eenadmalayalam.com
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infotecestrategia.com
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dentihex.info
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fakero.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 4 IoCs
- Blocklisted process makes network request 4 IoCs
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 1 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 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\HXM030~0.EXE.exe"C:\Users\Admin\AppData\Local\Temp\HXM030~0.EXE.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\ckqrbmz.exe"C:\Users\Admin\AppData\Local\Temp\ckqrbmz.exe" C:\Users\Admin\AppData\Local\Temp\usnashlow.i3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\ckqrbmz.exe"C:\Users\Admin\AppData\Local\Temp\ckqrbmz.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\msiexec.exe"C:\Windows\SysWOW64\msiexec.exe"2⤵
- Blocklisted process makes network request
- 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\ckqrbmz.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
ckqrbmz.exe
ckqrbmz.exe
ckqrbmz.exe
fsnvhtlywyq.xcc
usnashlow.i
memory/2348-142-0x0000000002FD0000-0x0000000003087000-memory.dmp
memory/2348-152-0x0000000008400000-0x000000000858C000-memory.dmp
memory/2348-150-0x0000000008400000-0x000000000858C000-memory.dmp
memory/4676-141-0x0000000000AC0000-0x0000000000AD4000-memory.dmp
memory/4676-144-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4676-140-0x0000000001080000-0x00000000013CA000-memory.dmp
memory/4676-139-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4968-146-0x0000000000420000-0x0000000000432000-memory.dmp
memory/4968-147-0x0000000000F40000-0x0000000000F6F000-memory.dmp
memory/4968-148-0x0000000003030000-0x000000000337A000-memory.dmp
memory/4968-149-0x0000000002E70000-0x0000000002F03000-memory.dmp
memory/4968-151-0x0000000000F40000-0x0000000000F6F000-memory.dmp