Analysis
- max time kernel
149s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20231020-en - resource tags
- submitted
21/11/2023, 14:11
General
- Target file.exe
- Size 337KB
- Sample231121-rhapfsff8s
- SHA256 4169bc8ef83d44e5cd72de2f88c40602f7840d578e1ec0bbdd9b2a874bb75c4c
Malware Config
Extracted
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formbook
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4.1
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t2ti
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j6y.lat
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kindlekidz.com
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studio352events.com
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merelweb.com
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6061k.vip
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iuk242.com
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tiltedjava.net
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importmotorshickory.com
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codinnotech.com
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foodapartcupboardscript.click
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donovanmanuel.store
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michealwilshire.online
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clawenterprises.net
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spacecargo.net
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duadqps.com
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allamericanshuttlellc.com
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shucaimh.com
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qivovrj.com
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infynite1.net
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albertcolet.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 5 IoCs
- Executes dropped EXE 2 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 60 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of UnmapMainImage 1 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 UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\twbcaze.exe"C:\Users\Admin\AppData\Local\Temp\twbcaze.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\twbcaze.exe"C:\Users\Admin\AppData\Local\Temp\twbcaze.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\autofmt.exe"C:\Windows\SysWOW64\autofmt.exe"2⤵
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C:\Windows\SysWOW64\autofmt.exe"C:\Windows\SysWOW64\autofmt.exe"2⤵
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C:\Windows\SysWOW64\autofmt.exe"C:\Windows\SysWOW64\autofmt.exe"2⤵
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.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\twbcaze.exe"3⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
twbcaze.exe
twbcaze.exe
twbcaze.exe
vieaa.phf
memory/936-7-0x0000000000400000-0x000000000042F000-memory.dmp
memory/936-9-0x00000000009E0000-0x0000000000D2A000-memory.dmp
memory/936-11-0x0000000000400000-0x000000000042F000-memory.dmp
memory/936-12-0x00000000006F0000-0x0000000000705000-memory.dmp
memory/936-15-0x0000000000400000-0x000000000042F000-memory.dmp
memory/936-16-0x0000000000950000-0x0000000000965000-memory.dmp
memory/2108-24-0x0000000002D00000-0x000000000304A000-memory.dmp
memory/2108-25-0x0000000000C60000-0x0000000000C8F000-memory.dmp
memory/2108-28-0x0000000002A40000-0x0000000002AD4000-memory.dmp
memory/2108-19-0x0000000000520000-0x0000000000953000-memory.dmp
memory/2108-22-0x0000000000520000-0x0000000000953000-memory.dmp
memory/2108-23-0x0000000000C60000-0x0000000000C8F000-memory.dmp
memory/3276-17-0x0000000007600000-0x000000000770F000-memory.dmp
memory/3276-13-0x0000000007510000-0x00000000075F2000-memory.dmp
memory/3276-27-0x0000000007510000-0x00000000075F2000-memory.dmp
memory/3276-29-0x0000000008850000-0x00000000088E8000-memory.dmp
memory/3276-30-0x0000000008850000-0x00000000088E8000-memory.dmp
memory/3276-31-0x0000000007600000-0x000000000770F000-memory.dmp
memory/3276-34-0x0000000008850000-0x00000000088E8000-memory.dmp
memory/3936-5-0x00000000004D0000-0x00000000004D2000-memory.dmp