Analysis
- max time kernel
149s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
19/11/2024, 20:18
General
- Target f2b1d838e92540f58d6038f3eadedcd37f29aaa82fa8dad8a1b6aac50644fb96.exe
- Size 1.2MB
- Sample241119-y3psfa1phw
- SHA256 f2b1d838e92540f58d6038f3eadedcd37f29aaa82fa8dad8a1b6aac50644fb96
Malware Config
Signatures
- Detect PurpleFox Rootkit 9 IoCs
Detect PurpleFox Rootkit.
- Gh0st RAT payload 10 IoCs
- Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
- Gh0strat family
- PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
- Purplefox family
- Drops file in Drivers directory 1 IoCs
- Sets service image path in registry 2 TTPs 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 1 IoCs
- Executes dropped EXE 5 IoCs
- Loads dropped DLL 1 IoCs
- VMProtect packed file 10 IoCs
Detects executables packed with VMProtect commercial packer.
- Adds Run key to start application 2 TTPs 1 IoCs
- Drops file in System32 directory 4 IoCs
- UPX packed file 12 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 3 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
- Modifies registry class 1 IoCs
- Runs ping.exe 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious behavior: LoadsDriver 1 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\f2b1d838e92540f58d6038f3eadedcd37f29aaa82fa8dad8a1b6aac50644fb96.exe"C:\Users\Admin\AppData\Local\Temp\f2b1d838e92540f58d6038f3eadedcd37f29aaa82fa8dad8a1b6aac50644fb96.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\AK47.exe"C:\Users\Admin\AppData\Local\Temp\AK47.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3388 -s 4523⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3388 -s 3923⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\AK47.exeC:\Users\Admin\AppData\Local\Temp\\AK47.exe2⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2944 -s 3483⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\AK74.exeC:\Users\Admin\AppData\Local\Temp\\AK74.exe2⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- 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\AK74.exe > nul3⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping -n 2 127.0.0.14⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"2⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3388 -ip 33881⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2944 -ip 29441⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3388 -ip 33881⤵
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C:\Windows\SysWOW64\Ghiya.exeC:\Windows\SysWOW64\Ghiya.exe -auto1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\Ghiya.exeC:\Windows\SysWOW64\Ghiya.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
Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Replay Monitor
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Downloads
AK47.exe
AK74.exe
Config.ini
VBS3.vbs
svchcst.exe
240639078.txt
memory/1768-34-0x0000000010000000-0x00000000101BA000-memory.dmp
memory/1768-32-0x0000000010000000-0x00000000101BA000-memory.dmp
memory/1768-35-0x0000000010000000-0x00000000101BA000-memory.dmp
memory/3196-44-0x0000000010000000-0x00000000101BA000-memory.dmp
memory/3196-56-0x0000000010000000-0x00000000101BA000-memory.dmp
memory/3196-58-0x0000000010000000-0x00000000101BA000-memory.dmp
memory/3196-51-0x0000000010000000-0x00000000101BA000-memory.dmp
memory/3196-43-0x0000000010000000-0x00000000101BA000-memory.dmp
memory/3196-37-0x0000000010000000-0x00000000101BA000-memory.dmp
memory/3352-0-0x0000000000400000-0x0000000000760000-memory.dmp
memory/3352-73-0x0000000000400000-0x0000000000760000-memory.dmp
memory/3352-79-0x0000000000400000-0x0000000000760000-memory.dmp
memory/3352-76-0x0000000000400000-0x0000000000760000-memory.dmp
memory/3352-60-0x0000000000400000-0x0000000000760000-memory.dmp
memory/3352-63-0x0000000000400000-0x0000000000760000-memory.dmp
memory/3352-66-0x0000000000400000-0x0000000000760000-memory.dmp
memory/3352-70-0x0000000000400000-0x0000000000760000-memory.dmp
memory/3352-1-0x0000000000400000-0x0000000000760000-memory.dmp
memory/4960-27-0x0000000010000000-0x00000000101BA000-memory.dmp
memory/4960-24-0x0000000010000000-0x00000000101BA000-memory.dmp
memory/4960-26-0x0000000010000000-0x00000000101BA000-memory.dmp