Analysis
- max time kernel
150s - max time network
153s - platform
windows10_x64 - resource
win10-en-20211014 - submitted
03/11/2021, 11:36
General
- Target rfq.exe
- Size 304KB
- Sample211103-nqkylsaggp
- SHA256 9b4f227304980351439c58e4b8a29844c7929c11de71051cf7c79f348996e8b1
Malware Config
Extracted
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xloader
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2.5
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unzn
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http://www.davanamays.com/unzn/
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xiulf.com
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highcountrymortar.com
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523561.com
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marketingagency.tools
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ganmovie.net
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nationaalcontactpunt.com
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sirrbter.com
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begizas.xyz
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missimi-fashion.com
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munixc.info
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daas.support
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spaceworbc.com
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faithtruthresolve.com
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gymkub.com
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thegrayverse.xyz
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artisanmakefurniture.com
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029tryy.com
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ijuubx.biz
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iphone13promax.club
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techuniversus.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 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 60 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 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\rfq.exe"C:\Users\Admin\AppData\Local\Temp\rfq.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\rfq.exe"C:\Users\Admin\AppData\Local\Temp\rfq.exe"3⤵
- 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\rfq.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/892-116-0x0000000000400000-0x0000000000429000-memory.dmp
memory/892-120-0x0000000000E40000-0x0000000000E51000-memory.dmp
memory/892-119-0x00000000009D0000-0x0000000000CF0000-memory.dmp
memory/1304-124-0x00000000008F0000-0x00000000008FA000-memory.dmp
memory/1304-125-0x0000000004D20000-0x0000000004D49000-memory.dmp
memory/1304-126-0x0000000005430000-0x0000000005750000-memory.dmp
memory/1304-127-0x0000000005290000-0x0000000005320000-memory.dmp
memory/2568-121-0x0000000007000000-0x0000000007113000-memory.dmp
memory/2568-128-0x0000000007120000-0x000000000728C000-memory.dmp