Analysis
- max time kernel
152s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
25/06/2024, 12:25
General
- Target 986977afb2d34006eda18dc477782a77fdaa7e81e321056cf65d827beac0cbc0.exe
- Size 8.1MB
- Sample240625-plndlszbmg
- SHA256 986977afb2d34006eda18dc477782a77fdaa7e81e321056cf65d827beac0cbc0
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.
- PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Drops file in Drivers directory 1 IoCs
- Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
- Sets service image path in registry 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Executes dropped EXE 6 IoCs
- Loads dropped DLL 4 IoCs
- Themida packer 2 IoCs
Detects Themida, an advanced Windows software protection system.
- UPX packed file 10 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Drops desktop.ini file(s) 2 IoCs
- Drops file in System32 directory 6 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Drops file in Program Files directory 1 IoCs
- Drops file in Windows directory 3 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 4 IoCs
- Suspicious behavior: LoadsDriver 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\986977afb2d34006eda18dc477782a77fdaa7e81e321056cf65d827beac0cbc0.exe"C:\Users\Admin\AppData\Local\Temp\986977afb2d34006eda18dc477782a77fdaa7e81e321056cf65d827beac0cbc0.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\R.exeC:\Users\Admin\AppData\Local\Temp\\R.exe2⤵
- Server Software Component: Terminal Services DLL
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
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C:\Users\Admin\AppData\Local\Temp\N.exeC:\Users\Admin\AppData\Local\Temp\\N.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\N.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_986977afb2d34006eda18dc477782a77fdaa7e81e321056cf65d827beac0cbc0.exeC:\Users\Admin\AppData\Local\Temp\HD_986977afb2d34006eda18dc477782a77fdaa7e81e321056cf65d827beac0cbc0.exe2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops desktop.ini file(s)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "Remote Data"1⤵
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "Remote Data"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\Remote Data.exe"C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240654640.txt",MainThread2⤵
- Executes dropped EXE
- Loads dropped DLL
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C:\Windows\SysWOW64\TXPlatfor.exeC:\Windows\SysWOW64\TXPlatfor.exe -auto1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\TXPlatfor.exeC:\Windows\SysWOW64\TXPlatfor.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 --mojo-platform-channel-handle=3804 --field-trial-handle=2264,i,15001568551143786084,90255922961447677,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Server Software Component
1Terminal Services DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
HVMRuntm.dll
HD_986977afb2d34006eda18dc477782a77fdaa7e81e321056cf65d827beac0cbc0.exe
HD_X.dat
N.exe
R.exe
RCX7F5D.tmp
X.ico
240654640.txt
Remote Data.exe
memory/2372-23-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2372-17-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2372-19-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/2372-20-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/3000-37-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/3000-40-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/3000-46-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/3588-44-0x0000000000400000-0x0000000000FB8000-memory.dmp
memory/3588-70-0x0000000073110000-0x000000007316B000-memory.dmp
memory/3588-76-0x0000000000400000-0x0000000000FB8000-memory.dmp
memory/3980-29-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/3980-26-0x0000000010000000-0x00000000101B6000-memory.dmp
memory/3980-28-0x0000000010000000-0x00000000101B6000-memory.dmp