Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
30/01/2023, 01:02
General
- Target file.exe
- Size 2.1MB
- Sample230130-bdsfpsdc7x
- SHA256 b50595dd8af7ce4622e5fbfb907e9044c9d7825dd81d74e228e55682d9be8912
Malware Config
Extracted
-
gcleaner
-
45.12.253.56
-
45.12.253.72
-
45.12.253.98
-
45.12.253.75
Signatures
- GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
- Executes dropped EXE 3 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 3 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in Program Files directory 9 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Kills process with taskkill 1 IoCs
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-TBVNB.tmp\file.tmp"C:\Users\Admin\AppData\Local\Temp\is-TBVNB.tmp\file.tmp" /SL5="$13006C,1995173,135168,C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
-
C:\Program Files (x86)\FgesoftFR\FinalRecovery\finalrecovery.exe"C:\Program Files (x86)\FgesoftFR\FinalRecovery\finalrecovery.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\ODRfp8.exe4⤵
- Executes dropped EXE
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "finalrecovery.exe" /f & erase "C:\Program Files (x86)\FgesoftFR\FinalRecovery\finalrecovery.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\taskkill.exetaskkill /im "finalrecovery.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
finalrecovery.exe
finalrecovery.exe
_iscrypt.dll
_isdecmp.dll
_isdecmp.dll
file.tmp
file.tmp
ODRfp8.exe
ODRfp8.exe
memory/808-151-0x0000000000400000-0x0000000000428000-memory.dmp
memory/808-137-0x0000000000400000-0x0000000000428000-memory.dmp
memory/808-159-0x0000000000400000-0x0000000000428000-memory.dmp
memory/808-132-0x0000000000400000-0x0000000000428000-memory.dmp
memory/1120-145-0x0000000000400000-0x0000000001389000-memory.dmp
memory/1120-147-0x0000000000400000-0x0000000001389000-memory.dmp
memory/1120-146-0x0000000000400000-0x0000000001389000-memory.dmp
memory/1120-152-0x0000000000400000-0x0000000001389000-memory.dmp
memory/1120-153-0x0000000010000000-0x000000001001B000-memory.dmp
memory/1120-158-0x0000000000400000-0x0000000001389000-memory.dmp
memory/4584-140-0x0000000003201000-0x0000000003203000-memory.dmp