Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
25/06/2024, 16:11
General
- Target 21f77c9862f721614b1e0c92d51e3540b1af5cfb1fcc102f893e5c30696fc0e5.exe
- Size 3.4MB
- Sample240625-tm3bdazdrg
- SHA256 21f77c9862f721614b1e0c92d51e3540b1af5cfb1fcc102f893e5c30696fc0e5
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 4 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: EnumeratesProcesses 2 IoCs
- Suspicious behavior: LoadsDriver 1 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\21f77c9862f721614b1e0c92d51e3540b1af5cfb1fcc102f893e5c30696fc0e5.exe"C:\Users\Admin\AppData\Local\Temp\21f77c9862f721614b1e0c92d51e3540b1af5cfb1fcc102f893e5c30696fc0e5.exe"1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- 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:\Users\Admin\AppData\Local\Temp\HD_21f77c9862f721614b1e0c92d51e3540b1af5cfb1fcc102f893e5c30696fc0e5.exeC:\Users\Admin\AppData\Local\Temp\HD_21f77c9862f721614b1e0c92d51e3540b1af5cfb1fcc102f893e5c30696fc0e5.exe2⤵
- Executes dropped 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_21f77c9862f721614b1e0c92d51e3540b1af5cfb1fcc102f893e5c30696fc0e5.exe
HD_X.dat
RVN.exe
memory/1588-6-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/1588-4-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/1588-7-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/1588-10-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2024-31-0x0000000000400000-0x000000000097B000-memory.dmp
memory/3128-16-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/3128-26-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/3128-17-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/3128-13-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/3128-15-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4356-32-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4356-34-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4356-37-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/4356-25-0x0000000010000000-0x00000000101B6000-memory.dmp