Analysis
- max time kernel
149s - max time network
143s - platform
windows7_x64 - resource
win7-20220414-en - submitted
09/05/2022, 19:35
General
- Target obi.exe
- Size 423KB
- Sample220509-yandxaeaa9
- SHA256 95c30ee77cf4d9e39a29a1dff147a9154b0dd7a6499b9deae1537d3ecabf4774
Malware Config
Extracted
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formbook
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4.1
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o20a
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getplanda.com
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wilmarrysteph.com
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brandology.xyz
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aseguranzas.online
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ger.xyz
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alibikoln.xyz
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jmaisr.com
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npydxwj.com
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slotofun.net
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marmpnthill.com
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buildbostonbetter.com
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tonealconsulting.com
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hoteldhanashree.com
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alignmentanalogue.site
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arbasaa.xyz
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jkesguerra.com
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nrl4957.xyz
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origine-workshop.com
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ridstu.com
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itaoshumiao.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 4 IoCs
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 2 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.
- Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.
- 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 19 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\obi.exe"C:\Users\Admin\AppData\Local\Temp\obi.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\gilfpmu.exeC:\Users\Admin\AppData\Local\Temp\gilfpmu.exe C:\Users\Admin\AppData\Local\Temp\dzbzcqhaih3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\gilfpmu.exeC:\Users\Admin\AppData\Local\Temp\gilfpmu.exe C:\Users\Admin\AppData\Local\Temp\dzbzcqhaih4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\NETSTAT.EXE"C:\Windows\SysWOW64\NETSTAT.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\gilfpmu.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
dzbzcqhaih
gilfpmu.exe
gilfpmu.exe
gilfpmu.exe
xzzxza8dlp2hxtq3wl
gilfpmu.exe
gilfpmu.exe
memory/548-54-0x0000000075DB1000-0x0000000075DB3000-memory.dmp
memory/1196-68-0x0000000004B40000-0x0000000004C0A000-memory.dmp
memory/1196-78-0x0000000005010000-0x000000000518F000-memory.dmp
memory/1196-71-0x0000000004CB0000-0x0000000004DF4000-memory.dmp
memory/1664-77-0x0000000000A70000-0x0000000000B03000-memory.dmp
memory/1664-76-0x0000000000C40000-0x0000000000F43000-memory.dmp
memory/1664-75-0x0000000000130000-0x000000000015F000-memory.dmp
memory/1664-74-0x0000000000F60000-0x0000000000F69000-memory.dmp
memory/2032-70-0x00000000004A0000-0x00000000004B4000-memory.dmp
memory/2032-69-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2032-66-0x0000000000770000-0x0000000000A73000-memory.dmp
memory/2032-62-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2032-67-0x00000000003B0000-0x00000000003C4000-memory.dmp