Analysis
- max time kernel
149s - max time network
153s - platform
windows7_x64 - resource
win7v20210410 - submitted
29/07/2021, 11:45
General
- Target EoH35.PDF.exe
- Size 1.0MB
- Sample210729-jrhff896me
- SHA256 aaa40ee2b509dc2b3a2f12f62d70565c85eb9aa13a7efd43bb86cfba0a3e1a88
Malware Config
Extracted
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xloader
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2.3
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http://www.ossotasarim.com/ushb/
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shopcavo.com
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spowerschool.com
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freekylerittenhouse.info
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wipe4all.com
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wounded-deer.com
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poetasamigosypensadores.com
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qteap.com
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car-bingo.com
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selbaje.com
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amigofincorp.com
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dirty-underwear.com
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theyongeseries.com
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watertreeinc.com
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gemmacarulla.com
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lauramagni.com
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darkfliks.com
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jjayphoto.com
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chinnanmotors.com
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intentionaltalentsolutions.com
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oxiaer.com
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- suricata: ET MALWARE FormBook CnC Checkin (GET)
- CustAttr .NET packer 1 IoCs
Detects CustAttr .NET packer in memory.
- Xloader Payload 3 IoCs
- Blocklisted process makes network request 5 IoCs
- Deletes itself 1 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Suspicious behavior: EnumeratesProcesses 20 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 4 IoCs
- Suspicious use of SendNotifyMessage 4 IoCs
- Suspicious use of WriteProcessMemory 18 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\EoH35.PDF.exe"C:\Users\Admin\AppData\Local\Temp\EoH35.PDF.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\EoH35.PDF.exe"C:\Users\Admin\AppData\Local\Temp\EoH35.PDF.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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-
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C:\Windows\SysWOW64\msiexec.exe"C:\Windows\SysWOW64\msiexec.exe"2⤵
- Blocklisted process makes network request
- 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\EoH35.PDF.exe"3⤵
- Deletes itself
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
memory/308-61-0x0000000001090000-0x0000000001091000-memory.dmp
memory/308-62-0x00000000003E0000-0x00000000003EB000-memory.dmp
memory/308-63-0x0000000001110000-0x000000000117F000-memory.dmp
memory/308-64-0x0000000000C60000-0x0000000000C8B000-memory.dmp
memory/308-59-0x0000000001260000-0x0000000001261000-memory.dmp
memory/1256-67-0x0000000000A00000-0x0000000000D03000-memory.dmp
memory/1256-65-0x0000000000400000-0x0000000000428000-memory.dmp
memory/1256-68-0x0000000000160000-0x0000000000170000-memory.dmp
memory/1264-69-0x00000000069C0000-0x0000000006AC5000-memory.dmp
memory/1264-77-0x00000000072D0000-0x0000000007458000-memory.dmp
memory/1768-71-0x0000000075A31000-0x0000000075A33000-memory.dmp
memory/1768-73-0x0000000000090000-0x00000000000B8000-memory.dmp
memory/1768-72-0x00000000005F0000-0x0000000000604000-memory.dmp
memory/1768-75-0x0000000002260000-0x0000000002563000-memory.dmp
memory/1768-76-0x0000000000610000-0x000000000069F000-memory.dmp