Analysis
- max time kernel
127s - max time network
130s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
20/01/2023, 18:15
General
- Target 7d53754fb2eb6479e9d71d07036133421f4d153ec252873c7beeb619f762a90f.exe
- Size 226KB
- Sample230120-wwcs7aba81
- SHA256 7d53754fb2eb6479e9d71d07036133421f4d153ec252873c7beeb619f762a90f
Malware Config
Extracted
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xloader
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2.5
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dx3n
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polebear.xyz
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luciamoca.com
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185451.com
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bookfriendspodcast.net
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reliancetechsolutions.com
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wuzuiso.com
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ig-representative.com
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ryotaohno.com
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wlnhcl.com
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oasispoolth.com
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fo71.com
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storyandidentity.com
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sayarpro.com
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arrow-electronics-corps.net
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brasbux.com
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nigeriaafricasummit.com
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choud.store
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medicareopenenrollment.info
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amlhcz.com
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fdklflkdioerklfdke.store
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- Xloader payload 4 IoCs
- Executes dropped EXE 2 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Enumerates system info in registry 2 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 52 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 15 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\7d53754fb2eb6479e9d71d07036133421f4d153ec252873c7beeb619f762a90f.exe"C:\Users\Admin\AppData\Local\Temp\7d53754fb2eb6479e9d71d07036133421f4d153ec252873c7beeb619f762a90f.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\rcviyqs.exeC:\Users\Admin\AppData\Local\Temp\rcviyqs.exe C:\Users\Admin\AppData\Local\Temp\zdjjwjv3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\rcviyqs.exeC:\Users\Admin\AppData\Local\Temp\rcviyqs.exe C:\Users\Admin\AppData\Local\Temp\zdjjwjv4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\chkdsk.exe"C:\Windows\SysWOW64\chkdsk.exe"2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- 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\rcviyqs.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
1ywlrkxvvx812p0hw00x
rcviyqs.exe
rcviyqs.exe
rcviyqs.exe
zdjjwjv
memory/628-143-0x00000000017E0000-0x00000000017F1000-memory.dmp
memory/628-141-0x0000000000400000-0x0000000000429000-memory.dmp
memory/628-142-0x0000000001800000-0x0000000001B4A000-memory.dmp
memory/628-138-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2080-152-0x0000000003310000-0x00000000033F1000-memory.dmp
memory/2080-153-0x0000000003310000-0x00000000033F1000-memory.dmp
memory/2080-144-0x0000000008AE0000-0x0000000008C25000-memory.dmp
memory/3152-148-0x0000000000CD0000-0x0000000000CF9000-memory.dmp
memory/3152-149-0x00000000014D0000-0x000000000181A000-memory.dmp
memory/3152-150-0x0000000001300000-0x0000000001390000-memory.dmp
memory/3152-151-0x0000000000CD0000-0x0000000000CF9000-memory.dmp
memory/3152-147-0x0000000000200000-0x000000000020A000-memory.dmp