Analysis
- max time kernel
151s - max time network
151s - platform
windows10_x64 - resource
win10-en-20211104 - submitted
24/11/2021, 14:41
General
- Target vbc.exe
- Size 297KB
- Sample211124-r2fd2sgbb6
- SHA256 4b50745e74fea6faa516b4d46b7c9fbe36fdae2301b76ec940635d033707a2c8
Malware Config
Extracted
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xloader
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2.5
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m07f
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http://www.ff4cu6twc.xyz/m07f/
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khitthit.club
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kczu.net
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caylalamar.com
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iixiazai.com
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nickatwoodrealestate.com
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006664.com
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strimsbdltd.com
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mykyhouse.com
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flyestkicks.com
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campingwithoutcanvas.com
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sarishamisen.com
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retrorecycling.com
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zw4azsjb3cuj.biz
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lokasennaservices.com
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charleswagner.xyz
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smmbazar.net
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rebornmkt.com
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clicktoreach.com
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alendigital.xyz
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carehrc.com
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- Xloader Payload 3 IoCs
- Loads dropped DLL 1 IoCs
- Uses the VBS compiler for execution 1 TTPs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 60 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\SysWOW64\rundll32.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\vbc.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/8-119-0x0000000000400000-0x0000000000429000-memory.dmp
memory/8-123-0x00000000009F0000-0x0000000000A01000-memory.dmp
memory/8-122-0x0000000000A30000-0x0000000000D50000-memory.dmp
memory/3020-124-0x0000000006940000-0x0000000006AA0000-memory.dmp
memory/3020-131-0x0000000006BD0000-0x0000000006D3A000-memory.dmp
memory/4092-128-0x0000000004390000-0x00000000046B0000-memory.dmp
memory/4092-126-0x00000000008A0000-0x00000000008B3000-memory.dmp
memory/4092-130-0x0000000004060000-0x00000000040F0000-memory.dmp
memory/4092-127-0x00000000003B0000-0x00000000003D9000-memory.dmp