Analysis
- max time kernel
147s - max time network
127s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
31/03/2024, 15:54
General
- Target Unpaid invoice.exe
- Size 450KB
- Sample240331-tcp83aeh65
- SHA256 1bbc8a34b7590c1593c5a79a8d0f93b17a162f44893c37aa11e4cb9e0e2d96bf
Malware Config
Extracted
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xloader
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2.5
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b2c0
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bjyxszd520.xyz
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hsvfingerprinting.com
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elliotpioneer.com
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bf396.com
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chinaopedia.com
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6233v.com
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shopeuphoricapparel.com
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loccssol.store
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truefictionpictures.com
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playstarexch.com
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peruviancoffee.store
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shobhajoshi.com
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philme.net
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avito-rules.com
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independencehomecenters.com
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atp-cayenne.com
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invetorsbank.com
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sasanos.com
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scentfreebnb.com
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catfuid.com
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- Xloader payload 4 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).
- Suspicious behavior: EnumeratesProcesses 30 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\help.exe"C:\Windows\SysWOW64\help.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\Unpaid invoice.exe"3⤵
- Deletes itself
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
gyalquzbu.dll
memory/1196-11-0x0000000003890000-0x0000000003990000-memory.dmp
memory/1196-25-0x0000000007170000-0x00000000072AD000-memory.dmp
memory/1196-14-0x0000000007170000-0x00000000072AD000-memory.dmp
memory/2532-12-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2532-13-0x00000000003D0000-0x00000000003E1000-memory.dmp
memory/2532-9-0x0000000000950000-0x0000000000C53000-memory.dmp
memory/2532-8-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2988-18-0x0000000000950000-0x0000000000956000-memory.dmp
memory/2988-15-0x0000000000950000-0x0000000000956000-memory.dmp
memory/2988-19-0x0000000000080000-0x00000000000A9000-memory.dmp
memory/2988-20-0x0000000000960000-0x0000000000C63000-memory.dmp
memory/2988-21-0x0000000000080000-0x00000000000A9000-memory.dmp
memory/2988-23-0x0000000000350000-0x00000000003E0000-memory.dmp