Analysis
- max time kernel
149s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
28/04/2022, 07:01
General
- Target 7e8df85d24aabc66495d12943250999c.exe
- Size 192KB
- Sample220428-hs9rvsfdcr
- SHA256 b33f2bc956ec9e983992bd165347b7041b03ee77749640a04451efb3ea2cf5d8
Malware Config
Extracted
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xloader
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2.5
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itq4
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worklocalcortland.com
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hostydom.tech
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ittakegenius.com
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clarisfixion.com
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totalzerosband.com
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shop-for-432.club
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exploremytruth.com
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skarpaknivar.com
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teknikunsur.net
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shoppingclick.online
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808gang.net
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solobookings.com
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mikunandina.com
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insumedkap.com
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kingdomcell.com
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qabetalive838475.com
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foxyreal.website
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filmweltruhr.com
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pokibar.com
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girassolpresentes.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
- Executes dropped EXE 2 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.
- Modifies registry class 2 IoCs
- Suspicious behavior: EnumeratesProcesses 60 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\7e8df85d24aabc66495d12943250999c.exe"C:\Users\Admin\AppData\Local\Temp\7e8df85d24aabc66495d12943250999c.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\nwwuulh.exeC:\Users\Admin\AppData\Local\Temp\nwwuulh.exe C:\Users\Admin\AppData\Local\Temp\opbign3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\nwwuulh.exeC:\Users\Admin\AppData\Local\Temp\nwwuulh.exe C:\Users\Admin\AppData\Local\Temp\opbign4⤵
- Executes dropped EXE
- 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\raserver.exe"C:\Windows\SysWOW64\raserver.exe"5⤵
- 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\nwwuulh.exe"6⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
85smfkwsm4
nwwuulh.exe
nwwuulh.exe
nwwuulh.exe
opbign
memory/1524-142-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1524-136-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1524-139-0x0000000000AB0000-0x0000000000DFA000-memory.dmp
memory/1524-140-0x00000000007D0000-0x00000000007E1000-memory.dmp
memory/1524-143-0x0000000000A50000-0x0000000000A61000-memory.dmp
memory/2148-141-0x0000000002930000-0x0000000002A76000-memory.dmp
memory/2148-144-0x0000000002E00000-0x0000000002EE8000-memory.dmp
memory/2148-151-0x0000000002A80000-0x0000000002B19000-memory.dmp
memory/4360-147-0x00000000004E0000-0x00000000004FF000-memory.dmp
memory/4360-148-0x0000000001050000-0x0000000001079000-memory.dmp
memory/4360-149-0x0000000003010000-0x000000000335A000-memory.dmp
memory/4360-150-0x0000000002D50000-0x0000000002DE0000-memory.dmp