Analysis
- max time kernel
153s - max time network
158s - platform
windows7_x64 - resource
win7-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 2 IoCs
- Deletes itself 1 IoCs
- Loads dropped DLL 1 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.
- Suspicious behavior: EnumeratesProcesses 30 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 15 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\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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-
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C:\Windows\SysWOW64\wscript.exe"C:\Windows\SysWOW64\wscript.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\vsl_rfq01209800122.exe"3⤵
- Deletes itself
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1064-57-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1064-59-0x00000000005E0000-0x00000000009E3000-memory.dmp
memory/1064-60-0x00000000005C0000-0x00000000005D1000-memory.dmp
memory/1164-62-0x00000000009E0000-0x0000000000A06000-memory.dmp
memory/1164-63-0x00000000000C0000-0x00000000000E9000-memory.dmp
memory/1164-64-0x0000000002010000-0x0000000002313000-memory.dmp
memory/1164-65-0x0000000000AA0000-0x0000000000B30000-memory.dmp
memory/1284-61-0x0000000006B10000-0x0000000006C42000-memory.dmp
memory/1284-66-0x0000000006CD0000-0x0000000006E56000-memory.dmp
memory/2008-55-0x00000000760F1000-0x00000000760F3000-memory.dmp