Analysis
- max time kernel
152s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220310-en - submitted
07/04/2022, 12:03
General
- Target BOQ and MEP WORKS.exe
- Size 241KB
- Sample220407-n71qdscfgm
- SHA256 995ed5a87efc98cfc45cd810d470bb7aa28a8e598da4a27516892bffdc99ac27
Malware Config
Extracted
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formbook
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4.1
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dn19
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tractorts-corporation-spzoo.com
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analiisajakobson.com
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augmentbrood.com
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afferwatsales.com
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thewealthline.com
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landdominican.com
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afrolezks.com
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ivycleaners.com
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canterburyabacusbells.com
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hc5e1uokgd55c.xyz
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nanjtgw.com
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nnh3.com
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nicholasgiemsa.com
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manawatiaamatariki.com
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pnqmt.com
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arrayas.online
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hc7131.com
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qxgzpx.com
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outhousela.com
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skarwallet.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
- Formbook Payload 2 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.
- Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.
- Suspicious behavior: EnumeratesProcesses 58 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\BOQ and MEP WORKS.exe"C:\Users\Admin\AppData\Local\Temp\BOQ and MEP WORKS.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\mhjjfcvpa.exeC:\Users\Admin\AppData\Local\Temp\mhjjfcvpa.exe C:\Users\Admin\AppData\Local\Temp\otcoy3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\mhjjfcvpa.exeC:\Users\Admin\AppData\Local\Temp\mhjjfcvpa.exe C:\Users\Admin\AppData\Local\Temp\otcoy4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\ipconfig.exe"C:\Windows\SysWOW64\ipconfig.exe"2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- 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\mhjjfcvpa.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
kytbbnvdscd4qpmjh682
mhjjfcvpa.exe
mhjjfcvpa.exe
mhjjfcvpa.exe
otcoy
memory/1928-143-0x0000000000B70000-0x0000000000EBA000-memory.dmp
memory/1928-140-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1928-144-0x00000000006D0000-0x00000000006E4000-memory.dmp
memory/2752-145-0x0000000008B80000-0x0000000008C65000-memory.dmp
memory/2752-152-0x0000000008C70000-0x0000000008D37000-memory.dmp
memory/3212-148-0x0000000000FA0000-0x0000000000FAB000-memory.dmp
memory/3212-149-0x0000000000470000-0x000000000049F000-memory.dmp
memory/3212-150-0x0000000000B40000-0x0000000000E8A000-memory.dmp
memory/3212-151-0x00000000009E0000-0x0000000000A73000-memory.dmp