Analysis
- max time kernel
150s - max time network
164s - platform
windows10_x64 - resource
win10v20210408 - submitted
29/07/2021, 11:45
General
- Target EoH35.PDF.exe
- Size 1.0MB
- Sample210729-jrhff896me
- SHA256 aaa40ee2b509dc2b3a2f12f62d70565c85eb9aa13a7efd43bb86cfba0a3e1a88
Malware Config
Extracted
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xloader
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2.3
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http://www.ossotasarim.com/ushb/
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shopcavo.com
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spowerschool.com
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freekylerittenhouse.info
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wipe4all.com
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wounded-deer.com
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poetasamigosypensadores.com
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qteap.com
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car-bingo.com
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selbaje.com
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amigofincorp.com
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dirty-underwear.com
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theyongeseries.com
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watertreeinc.com
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gemmacarulla.com
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lauramagni.com
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darkfliks.com
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jjayphoto.com
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chinnanmotors.com
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intentionaltalentsolutions.com
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oxiaer.com
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- suricata: ET MALWARE FormBook CnC Checkin (GET)
- CustAttr .NET packer 1 IoCs
Detects CustAttr .NET packer in memory.
- Xloader Payload 3 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates system info in registry 2 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 42 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of UnmapMainImage 1 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 UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\EoH35.PDF.exe"C:\Users\Admin\AppData\Local\Temp\EoH35.PDF.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\EoH35.PDF.exe"C:\Users\Admin\AppData\Local\Temp\EoH35.PDF.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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-
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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\EoH35.PDF.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/764-121-0x00000000059F0000-0x00000000059F1000-memory.dmp
memory/764-117-0x0000000005CD0000-0x0000000005CD1000-memory.dmp
memory/764-118-0x00000000057D0000-0x00000000057D1000-memory.dmp
memory/764-119-0x0000000005650000-0x00000000056EC000-memory.dmp
memory/764-120-0x0000000005690000-0x0000000005691000-memory.dmp
memory/764-122-0x0000000005B50000-0x0000000005B5B000-memory.dmp
memory/764-123-0x0000000007DA0000-0x0000000007E0F000-memory.dmp
memory/764-124-0x0000000007E10000-0x0000000007E3B000-memory.dmp
memory/764-116-0x00000000056F0000-0x00000000056F1000-memory.dmp
memory/764-114-0x0000000000D80000-0x0000000000D81000-memory.dmp
memory/2536-129-0x0000000002720000-0x00000000027FE000-memory.dmp
memory/2536-136-0x0000000005E10000-0x0000000005F09000-memory.dmp
memory/3140-133-0x0000000004E80000-0x0000000004EA8000-memory.dmp
memory/3140-132-0x0000000000A30000-0x0000000000A3A000-memory.dmp
memory/3140-134-0x00000000054A0000-0x00000000057C0000-memory.dmp
memory/3140-135-0x00000000057C0000-0x000000000584F000-memory.dmp
memory/3856-128-0x00000000015E0000-0x00000000015F0000-memory.dmp
memory/3856-127-0x0000000001720000-0x0000000001A40000-memory.dmp
memory/3856-125-0x0000000000400000-0x0000000000428000-memory.dmp