Analysis
- max time kernel
152s - max time network
152s - platform
windows10_x64 - resource
win10-en-20211014 - submitted
07/12/2021, 14:06
General
- Target vbc.exe
- Size 515KB
- Sample211207-ree5rschb6
- SHA256 7bfabb3e53f70e2ad39155a8af8d7e27a07ec01b0ba8faed52cb569e4f78142f
Malware Config
Extracted
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xloader
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2.5
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ea0r
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http://www.asiapubz-hk.com/ea0r/
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lionheartcreativestudios.com
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konzertmanagement.com
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blackpanther.online
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broychim-int.com
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takut18.com
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txstarsolar.com
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herdsherpa.com
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igorshestakov.com
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shinesbox.com
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reflectpkljlt.xyz
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oiltoolshub.com
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viralmoneychallenge.com
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changingalphastrategies.com
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mecitiris.com
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rdadmin.online
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miniambiente.com
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kominarcine.com
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pino-almond.com
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heihit.xyz
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junqi888.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 58 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\mstsc.exe"C:\Windows\SysWOW64\mstsc.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/1308-116-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1308-120-0x0000000000DC0000-0x0000000000DD1000-memory.dmp
memory/1308-119-0x00000000009A0000-0x0000000000CC0000-memory.dmp
memory/2180-125-0x00000000029B0000-0x00000000029D9000-memory.dmp
memory/2180-124-0x00000000003B0000-0x00000000006AC000-memory.dmp
memory/2180-126-0x0000000004930000-0x0000000004C50000-memory.dmp
memory/2180-127-0x0000000004820000-0x00000000048B0000-memory.dmp
memory/3064-121-0x00000000027C0000-0x0000000002890000-memory.dmp
memory/3064-128-0x0000000005C90000-0x0000000005DEF000-memory.dmp