Analysis
- max time kernel
147s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
31/08/2024, 04:26
General
- Target cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe
- Size 414KB
- Sample240831-e2x8mswbll
- SHA256 22542d1aef8c0987be0f91b90e4f70f372cc1b16ed67bbb1582798cac732f538
Malware Config
Extracted
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formbook
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3.9
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pg
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chinatobelgiumpertrain.com
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frengeen.com
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tipiacevincerefacile.bet
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aniversariosyvacaciones.com
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crittersitter.care
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freeformflow.com
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estxt.com
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adongchemical.com
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i1d0zglwq6n.biz
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undercover-trainer.com
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olimp-supplement.com
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fsjuxue.com
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cash4biz.loan
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theboulderhousenevadacity.com
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theindianstores.com
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crescentdetailing.com
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emslvy.com
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remeshkoff.com
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hizliporno.info
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nanny8024.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 18 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe"2⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe" "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"3⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\kemelsystmgr.exe"C:\Users\Admin\AppData\Local\kemelsystmgr.exe"4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\kemelsystmgr.exe"C:\Users\Admin\AppData\Local\kemelsystmgr.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\mstsc.exe"C:\Windows\SysWOW64\mstsc.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\kemelsystmgr.exe"3⤵
- System Location Discovery: System Language Discovery
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
kemelsystmgr.exe
memory/260-29-0x00000000009A0000-0x0000000000ADA000-memory.dmp
memory/260-27-0x00000000009A0000-0x0000000000ADA000-memory.dmp
memory/1376-23-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/1376-21-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/1376-18-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/1376-17-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/1376-16-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/3504-26-0x00000000025C0000-0x00000000026F8000-memory.dmp
memory/3504-33-0x0000000003E90000-0x0000000003F7F000-memory.dmp
memory/3504-31-0x00000000025C0000-0x00000000026F8000-memory.dmp
memory/4012-19-0x0000000000400000-0x000000000042A000-memory.dmp
memory/4012-28-0x0000000000400000-0x000000000042A000-memory.dmp
memory/4012-24-0x00000000015B0000-0x00000000018FA000-memory.dmp
memory/4164-4-0x000000007447E000-0x000000007447F000-memory.dmp
memory/4164-12-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/4164-3-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/4164-5-0x0000000005A90000-0x0000000005AF6000-memory.dmp
memory/4164-0-0x000000007447E000-0x000000007447F000-memory.dmp
memory/4164-2-0x00000000055E0000-0x00000000055FA000-memory.dmp
memory/4164-6-0x0000000005BA0000-0x0000000005C32000-memory.dmp
memory/4164-1-0x0000000000C30000-0x0000000000C9E000-memory.dmp
memory/4164-7-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/4164-8-0x0000000006330000-0x00000000068D4000-memory.dmp