Analysis
- max time kernel
170s - max time network
178s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
21/02/2022, 14:46
General
- Target Order-317585122-pdf.exe
- Size 291KB
- Sample220221-r5lp8sbegr
- SHA256 de84eba1dbe2c9b339c91d9f90180478b3e84a190f566d3c667d6490caa92601
Malware Config
Extracted
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xloader
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2.5
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uar3
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sgadvocats.com
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mjscannabus.com
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hilldaley.com
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ksdollhouse.com
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hotgiftboutique.com
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purebloodsmeet.com
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relaunched.info
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cap-glove.com
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productcollection.store
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fulikyy.xyz
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remoteaviationjobs.com
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bestcleancrystal.com
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virtualorganizationpartner.com
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bookgocar.com
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hattuafhv.quest
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makonigroup.com
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officecom-myaccount.com
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malgorzata-lac.com
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e-learningeducators.com
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hygilaur.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 3 IoCs
- Drops file in Windows directory 6 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 60 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 10 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 AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Order-317585122-pdf.exe"C:\Users\Admin\AppData\Local\Temp\Order-317585122-pdf.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\zopxdxewlg.exeC:\Users\Admin\AppData\Local\Temp\zopxdxewlg.exe C:\Users\Admin\AppData\Local\Temp\ehrzs3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\zopxdxewlg.exeC:\Users\Admin\AppData\Local\Temp\zopxdxewlg.exe C:\Users\Admin\AppData\Local\Temp\ehrzs4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmstp.exe"C:\Windows\SysWOW64\cmstp.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\zopxdxewlg.exe"3⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2068-150-0x00000270D0450000-0x00000270D0454000-memory.dmp
memory/2068-149-0x00000270CDD80000-0x00000270CDD90000-memory.dmp
memory/2068-148-0x00000270CDD20000-0x00000270CDD30000-memory.dmp
memory/2504-145-0x0000000002750000-0x0000000002A9A000-memory.dmp
memory/2504-146-0x00000000024B0000-0x0000000002540000-memory.dmp
memory/2504-143-0x00000000007B0000-0x00000000007C6000-memory.dmp
memory/2504-144-0x00000000006F0000-0x0000000000719000-memory.dmp
memory/3024-147-0x0000000001280000-0x0000000001313000-memory.dmp
memory/3024-142-0x0000000008D30000-0x0000000008ED8000-memory.dmp
memory/4556-135-0x0000000000400000-0x0000000000429000-memory.dmp
memory/4556-141-0x00000000007E0000-0x00000000007F1000-memory.dmp
memory/4556-140-0x000000000041D000-0x000000000041E000-memory.dmp
memory/4556-139-0x0000000000AB0000-0x0000000000DFA000-memory.dmp
memory/4556-138-0x0000000000400000-0x0000000000429000-memory.dmp
memory/4612-134-0x0000000000430000-0x0000000000432000-memory.dmp