Analysis
- max time kernel
150s - max time network
132s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
26/05/2024, 09:07
General
- Target b759eda4a2f54df366c57b2e7334474bacc7f74ceceea1dfa6438e40d80efdf3.exe
- Size 3.6MB
- Sample240526-k3eetadb91
- SHA256 b759eda4a2f54df366c57b2e7334474bacc7f74ceceea1dfa6438e40d80efdf3
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 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\b759eda4a2f54df366c57b2e7334474bacc7f74ceceea1dfa6438e40d80efdf3.exe"C:\Users\Admin\AppData\Local\Temp\b759eda4a2f54df366c57b2e7334474bacc7f74ceceea1dfa6438e40d80efdf3.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_b759eda4a2f54df366c57b2e7334474bacc7f74ceceea1dfa6438e40d80efdf3.exeC:\Users\Admin\AppData\Local\Temp\HD_b759eda4a2f54df366c57b2e7334474bacc7f74ceceea1dfa6438e40d80efdf3.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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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4088,i,11266875042087428226,16669718873272757238,262144 --variations-seed-version --mojo-platform-channel-handle=1276 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
HD_X.dat
HD_b759eda4a2f54df366c57b2e7334474bacc7f74ceceea1dfa6438e40d80efdf3.exe
RCX9A2D.tmp
RVN.exe
X.ico
memory/1580-95-0x00007FF7E81B0000-0x00007FF7E8483000-memory.dmp
memory/1580-32-0x00007FF7E81B0000-0x00007FF7E8483000-memory.dmp
memory/2124-29-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2124-36-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2124-35-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2124-23-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2600-13-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2600-15-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2600-17-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2600-16-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2600-26-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2676-4-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2676-10-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2676-7-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2676-6-0x0000000010000000-0x00000000101B6000-memory.dmp