Analysis
- max time kernel
150s - max time network
137s - platform
windows7_x64 - resource
win7-20230220-en - resource tags
- submitted
15/05/2023, 16:56
General
- Target rocrocroc.exe
- Size 236KB
- Sample230515-vfnebage46
- SHA256 80fd67b02253b03398a151f7c5392adfb32ad43a619a18c3dd8e2e8a876e9139
Malware Config
Extracted
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formbook
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4.1
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t30k
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coquitosatl.com
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havesnuoput.com
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edicareenroll.com
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eltechcenter.com
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abnahesi.com
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husgrunderalvsbyn.se
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emjpurenaturalenterprise.com
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fixedfloaut.com
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poshturefinds.net
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experiencetoro.com
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3dmedcarse.com
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digitalmarketingcourse-es.life
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lawyerinyakima.com
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blklashes.uk
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gfxzam.xyz
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mkartsforhealth.org.uk
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khietam.com
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kidrelieve.com
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carepluxhealthplans.com
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southwalesnappies.org.uk
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 5 IoCs
- Deletes itself 1 IoCs
- Loads dropped DLL 1 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 28 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of SendNotifyMessage 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 FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\rocrocroc.exe"C:\Users\Admin\AppData\Local\Temp\rocrocroc.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\rocrocroc.exe"C:\Users\Admin\AppData\Local\Temp\rocrocroc.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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-
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C:\Windows\SysWOW64\wininit.exe"C:\Windows\SysWOW64\wininit.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\rocrocroc.exe"3⤵
- Deletes itself
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
jcbpekwt.dll
memory/1308-69-0x0000000006BC0000-0x0000000006CB2000-memory.dmp
memory/1308-84-0x0000000007240000-0x0000000007364000-memory.dmp
memory/1308-82-0x0000000007240000-0x0000000007364000-memory.dmp
memory/1308-81-0x0000000007240000-0x0000000007364000-memory.dmp
memory/1308-65-0x0000000004830000-0x0000000004927000-memory.dmp
memory/1692-76-0x00000000009F0000-0x0000000000CF3000-memory.dmp
memory/1692-72-0x0000000000EE0000-0x0000000000EFA000-memory.dmp
memory/1692-74-0x0000000000EE0000-0x0000000000EFA000-memory.dmp
memory/1692-75-0x00000000000D0000-0x00000000000FF000-memory.dmp
memory/1692-77-0x00000000000D0000-0x00000000000FF000-memory.dmp
memory/1692-80-0x0000000000890000-0x0000000000923000-memory.dmp
memory/1924-68-0x00000000006C0000-0x00000000006D4000-memory.dmp
memory/1924-70-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1924-66-0x0000000000480000-0x0000000000494000-memory.dmp
memory/1924-64-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1924-63-0x0000000000730000-0x0000000000A33000-memory.dmp
memory/1924-61-0x0000000000400000-0x000000000042F000-memory.dmp