Analysis
- max time kernel
149s - max time network
11s - platform
windows7_x64 - resource
win7v20201028 - submitted
14/01/2021, 06:58
General
- Target MV. XIN YU_pdf.exe
- Size 857KB
- Sample210114-ccspv2rx2a
- SHA256 cf6959fe2bb4c2e078a8bb51c097dfd79bc0ca5cd296090a897ecb30a3ee6102
Malware Config
Extracted
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formbook
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http://www.huynhanhdung.com/kna/
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lawrencefiredepartment.com
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executivehomeoffices.com
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solfed.world
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oshawaexchange.com
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webdavlexstore.com
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youpieb.com
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chiller-master.com
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bearstoragetn.com
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daf90x16.com
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gewhacaalouine.com
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simplyezi.com
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cstechnologyservices.com
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nosyboats.com
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thecocomarie.com
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vetinaryeco.club
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americangoselfilm.com
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gdsuhejia.com
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verbunden-sein.net
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the-minerva.com
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loctrantv.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 3 IoCs
- Deletes itself 1 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Suspicious behavior: EnumeratesProcesses 23 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 4 IoCs
- Suspicious use of SendNotifyMessage 4 IoCs
- Suspicious use of WriteProcessMemory 18 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\MV. XIN YU_pdf.exe"C:\Users\Admin\AppData\Local\Temp\MV. XIN YU_pdf.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\MV. XIN YU_pdf.exe"{path}"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\msiexec.exe"C:\Windows\SysWOW64\msiexec.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\MV. XIN YU_pdf.exe"3⤵
- Deletes itself
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
memory/596-10-0x0000000000870000-0x0000000000884000-memory.dmp
memory/596-12-0x00000000032D0000-0x0000000003446000-memory.dmp
memory/1712-7-0x0000000000400000-0x000000000042E000-memory.dmp
memory/1832-2-0x0000000073980000-0x000000007406E000-memory.dmp
memory/1832-3-0x00000000009F0000-0x00000000009F1000-memory.dmp
memory/1832-5-0x00000000004B0000-0x00000000004BE000-memory.dmp
memory/1832-6-0x00000000056E0000-0x000000000576F000-memory.dmp