Analysis
- max time kernel
148s - max time network
148s - platform
windows7_x64 - resource
win7-en-20211208 - submitted
24/02/2022, 08:20
General
- Target vbc.exe
- Size 313KB
- Sample220224-j8e3vsdfel
- SHA256 79e8144ee4e2e97695849928e162288fc282de48ff4caea48314f9cb56477917
Malware Config
Extracted
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xloader
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2.5
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ciaz
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jobgeist.com
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pxwss.com
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nathanaeljeffrey.xyz
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rhoypl.biz
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avachaturbate.com
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xvideopornfilm.com
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heser.net
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olphschoolcrabfeed.com
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ballygallycastle.com
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attunetouchandglow.com
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wwwswanciitaphotography.com
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inspinevision.com
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ebabadofood.com
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glenngreerforlyman.com
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stickojfni.online
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cursophpbr.xyz
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thefindommistress.com
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8c9myn92dzep.biz
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alexamedia.art
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rarerp.com
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
- Xloader Payload 2 IoCs
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 2 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 31 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of WriteProcessMemory 19 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\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\yjpsyjwo.exeC:\Users\Admin\AppData\Local\Temp\yjpsyjwo.exe C:\Users\Admin\AppData\Local\Temp\vhdpeghnoh3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\yjpsyjwo.exeC:\Users\Admin\AppData\Local\Temp\yjpsyjwo.exe C:\Users\Admin\AppData\Local\Temp\vhdpeghnoh4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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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\yjpsyjwo.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/760-63-0x0000000000400000-0x0000000000429000-memory.dmp
memory/760-65-0x00000000006E0000-0x00000000009E3000-memory.dmp
memory/760-67-0x000000000041D000-0x000000000041E000-memory.dmp
memory/760-68-0x00000000002E0000-0x00000000002F1000-memory.dmp
memory/1200-74-0x0000000003850000-0x000000000392E000-memory.dmp
memory/1200-69-0x00000000076E0000-0x0000000007885000-memory.dmp
memory/1484-71-0x0000000000080000-0x00000000000A9000-memory.dmp
memory/1484-70-0x0000000000440000-0x000000000045A000-memory.dmp
memory/1484-72-0x0000000001E70000-0x0000000002173000-memory.dmp
memory/1484-73-0x0000000001C30000-0x0000000001CC0000-memory.dmp
memory/1672-55-0x0000000075321000-0x0000000075323000-memory.dmp