Analysis
- max time kernel
150s - max time network
153s - platform
windows7_x64 - resource
win7-20220414-en - submitted
30/06/2022, 08:18
General
- Target shipping documents.exe
- Size 564KB
- Sample220630-j6958abch8
- SHA256 30aa876ee488a9eaa2410ca4127f4f2573dfbc52d0900408ed30fa93906cd355
Malware Config
Extracted
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xloader
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2.9
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gfv7
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hd4AZDZ3XeSkZ9w0NRn2+JU=
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6iAxmGKdumxFEgwp
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jM6QcxNUSeCKaUdvvh3g9mffhosQ
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d4CC0LS0DjTJS8FdXqd3soM=
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S1LPlXEIJY52Og==
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doeO7AimsF0NEvFgnIV5
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W2TlzH/byHtUU3B7tw==
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Y2RAbyZjex2qj6GQv4Q=
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ftoOsCpZdfmALQ==
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4kqL8v/6rDj8Ohs/wAjkb0gD5Gfiww==
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8mVs/AkvwLnIWp4=
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yfqAazgHioT8b9yHSKpLDtgY
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EyWD5F+Wu3L0xq/VJXgdlnFvBDdUz5WM
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jn9ty+pdRNdtcDhJ5k8nwZofm4EJ
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s9XVNv4/aRDBUx4w
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+vHFE7Fw1rnIWp4=
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wC395Yvi6G/3yoWRGW1USxzshi3Dyw==
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jcbufIN91gHAUK1RYUMYIdyqpDlUz5WM
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iIyoIvZNXwPNmBlBxGk6+A==
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C/hTD8h/KWLiMW4Mt/joXyz23Q==
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 5 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Deletes itself 1 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Suspicious behavior: EnumeratesProcesses 22 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 use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\shipping documents.exe"C:\Users\Admin\AppData\Local\Temp\shipping documents.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\shipping documents.exe"{path}"3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\control.exe"C:\Windows\SysWOW64\control.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\shipping documents.exe"3⤵
- Deletes itself
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/844-78-0x0000000000080000-0x00000000000AC000-memory.dmp
memory/844-75-0x0000000000500000-0x0000000000590000-memory.dmp
memory/844-74-0x0000000002230000-0x0000000002533000-memory.dmp
memory/844-73-0x0000000000080000-0x00000000000AC000-memory.dmp
memory/844-72-0x0000000000360000-0x000000000037F000-memory.dmp
memory/936-60-0x0000000000400000-0x000000000042C000-memory.dmp
memory/936-69-0x0000000000400000-0x000000000042C000-memory.dmp
memory/936-65-0x0000000000990000-0x0000000000C93000-memory.dmp
memory/936-62-0x0000000000400000-0x000000000042C000-memory.dmp
memory/936-67-0x00000000001C0000-0x00000000001D1000-memory.dmp
memory/936-59-0x0000000000400000-0x000000000042C000-memory.dmp
memory/1084-54-0x0000000010A60000-0x0000000010AF2000-memory.dmp
memory/1084-58-0x0000000002240000-0x0000000002272000-memory.dmp
memory/1084-57-0x0000000004F20000-0x0000000004FA4000-memory.dmp
memory/1084-56-0x0000000000940000-0x000000000094A000-memory.dmp
memory/1084-55-0x0000000075CF1000-0x0000000075CF3000-memory.dmp
memory/1280-66-0x0000000004FD0000-0x00000000050BA000-memory.dmp
memory/1280-76-0x00000000069E0000-0x0000000006B3B000-memory.dmp
memory/1280-77-0x0000000004FD0000-0x00000000050BA000-memory.dmp
memory/1280-79-0x00000000069E0000-0x0000000006B3B000-memory.dmp