Analysis
- max time kernel
4294211s - max time network
144s - platform
windows7_x64 - resource
win7-20220223-en - submitted
03/03/2022, 06:32
General
- Target IRQ2107799_pdf.exe
- Size 462KB
- Sample220303-hamvdaheb8
- SHA256 75a17cb26bd616c7d7b48b0b3add3033b6cd8656d8d20a0618734a3850072632
Malware Config
Extracted
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formbook
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4.1
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s1m4
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fritzimmo.com
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seerefugee.com
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f2ymj6ud.xyz
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benchessell.com
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annplumb.com
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malpha.online
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thebengalsking.com
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ulctuscaloosa.church
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fotosenrutas.com
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lavishyummyinvite.quest
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indielanguagelearner.net
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tibbattipula.com
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sugarbabycones.com
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dxwzh.com
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brownsfinancialllc.com
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63838.xyz
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esscentsbyjhai.com
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therunningdoula.com
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63693.xyz
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ccchildrenscoalition.com
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 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 31 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 19 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\IRQ2107799_pdf.exe"C:\Users\Admin\AppData\Local\Temp\IRQ2107799_pdf.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\jukvbailt.exeC:\Users\Admin\AppData\Local\Temp\jukvbailt.exe C:\Users\Admin\AppData\Local\Temp\gzkxfn3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\jukvbailt.exeC:\Users\Admin\AppData\Local\Temp\jukvbailt.exe C:\Users\Admin\AppData\Local\Temp\gzkxfn4⤵
- 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\jukvbailt.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1204-54-0x0000000075CC1000-0x0000000075CC3000-memory.dmp
memory/1348-77-0x0000000000440000-0x00000000004D3000-memory.dmp
memory/1348-74-0x0000000000DA0000-0x0000000000DAD000-memory.dmp
memory/1348-76-0x00000000021B0000-0x00000000024B3000-memory.dmp
memory/1348-75-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/1360-65-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1360-71-0x000000000041F000-0x0000000000420000-memory.dmp
memory/1360-72-0x0000000000180000-0x0000000000194000-memory.dmp
memory/1360-68-0x0000000000130000-0x0000000000144000-memory.dmp
memory/1360-66-0x0000000000B60000-0x0000000000E63000-memory.dmp
memory/1360-67-0x000000000041F000-0x0000000000420000-memory.dmp
memory/1360-62-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1404-69-0x0000000007000000-0x0000000007168000-memory.dmp
memory/1404-73-0x00000000072C0000-0x0000000007413000-memory.dmp
memory/1404-78-0x0000000007420000-0x00000000075AD000-memory.dmp