Analysis
- max time kernel
152s - max time network
154s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
25/01/2022, 09:29
General
- Target vsl_rfq01209800122.exe
- Size 249KB
- Sample220125-lfzmxadaek
- SHA256 fd86ed836eaae451df45e757be525d3c9260d72e0c8af2eb85f1832a8499eac1
Malware Config
Extracted
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xloader
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2.5
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igwa
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listingswithalex.com
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funtabse.com
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aydenwalling.com
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prochal.net
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superfoodsnederland.com
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moldluck.com
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dianekgordon.store
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regionalhomescommercial.com
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mysecuritymadesimple.com
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malwaremastery.com
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kodaikeiko.com
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jrzg996.com
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agricurve.net
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songlingjiu.com
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virginianundahfishingclub.com
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friendschance.com
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pastelpresents.com
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answertitles.com
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survival-hunter.com
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nxfddl.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 3 IoCs
- Loads dropped DLL 1 IoCs
- Suspicious use of SetThreadContext 4 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 58 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 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\vsl_rfq01209800122.exe"C:\Users\Admin\AppData\Local\Temp\vsl_rfq01209800122.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\vsl_rfq01209800122.exe"C:\Users\Admin\AppData\Local\Temp\vsl_rfq01209800122.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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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\vsl_rfq01209800122.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/488-122-0x0000000000510000-0x0000000000EA0000-memory.dmp
memory/488-118-0x0000000000A20000-0x0000000000D40000-memory.dmp
memory/488-119-0x0000000000880000-0x0000000000A1C000-memory.dmp
memory/488-121-0x0000000000400000-0x0000000000429000-memory.dmp
memory/488-116-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1188-124-0x0000000001070000-0x000000000107A000-memory.dmp
memory/1188-125-0x0000000000E00000-0x0000000000E29000-memory.dmp
memory/1188-126-0x00000000055B0000-0x00000000058D0000-memory.dmp
memory/1188-127-0x0000000005270000-0x0000000005404000-memory.dmp
memory/3064-120-0x00000000062A0000-0x00000000063B3000-memory.dmp
memory/3064-123-0x0000000002C60000-0x0000000002D59000-memory.dmp
memory/3064-128-0x0000000002DE0000-0x0000000002EB8000-memory.dmp