Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
27/05/2024, 09:05
General
- Target 81ef1e310915ee377bcc354d05e980196a166b043bad7efcdb87eb221e364cd0.exe
- Size 1.7MB
- Sample240527-k187eafe33
- SHA256 81ef1e310915ee377bcc354d05e980196a166b043bad7efcdb87eb221e364cd0
Malware Config
Signatures
- Detect PurpleFox Rootkit 11 IoCs
Detect PurpleFox Rootkit.
- Gh0st RAT payload 11 IoCs
- Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
- PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
- Drops file in Drivers directory 1 IoCs
- Sets service image path in registry 2 TTPs 1 IoCs
- Executes dropped EXE 3 IoCs
- UPX packed file 13 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in System32 directory 2 IoCs
- Drops file in Program Files directory 5 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Runs ping.exe 1 TTPs 1 IoCs
- Suspicious behavior: LoadsDriver 1 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\81ef1e310915ee377bcc354d05e980196a166b043bad7efcdb87eb221e364cd0.exe"C:\Users\Admin\AppData\Local\Temp\81ef1e310915ee377bcc354d05e980196a166b043bad7efcdb87eb221e364cd0.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\RVN.exeC:\Users\Admin\AppData\Local\Temp\\RVN.exe2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\RVN.exe > nul3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping -n 2 127.0.0.14⤵
- Runs ping.exe
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C:\Windows\SysWOW64\TXPlatforn.exeC:\Windows\SysWOW64\TXPlatforn.exe -auto1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\TXPlatforn.exeC:\Windows\SysWOW64\TXPlatforn.exe -acsi2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
HD_X.dat
RVN.exe
memory/4424-7-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4424-10-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4424-6-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4424-4-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4508-25-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4508-30-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4508-39-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4508-67-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4932-16-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4932-17-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4932-15-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4932-24-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4932-13-0x0000000010000000-0x00000000101B6000-memory.dmp