Analysis
-
max time kernel
169s -
max time network
183s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 01:47
Static task
static1
Behavioral task
behavioral1
Sample
Fenc_General Presentation.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
Fenc_General Presentation.exe
Resource
win10v2004-20220414-en
General
-
Target
Fenc_General Presentation.exe
-
Size
447KB
-
MD5
6550d5ad0410e634c7bab8e161fadf88
-
SHA1
8819193d0ad3e5c5717107aca3920ed283c53e80
-
SHA256
bd2bf7c79dda8208f9ec0c2199d1ec61058aa43bbe6f8548623444fc143a3aec
-
SHA512
57eb107f455af652096ea9bef547c90e460216a948883bf70564651d058b039ad62ad4e80c1c52ec15218d58dcb4bb8b2b48830b37bde30962a5c676838bd39c
Malware Config
Signatures
-
Adds policy Run key to start application 2 TTPs 2 IoCs
Processes:
iexplore.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8 = "C:\\Users\\Admin\\AppData\\Roaming\\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8\\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8.exe" iexplore.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Fenc_General Presentation.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation Fenc_General Presentation.exe -
Processes:
Fenc_General Presentation.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" Fenc_General Presentation.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
iexplore.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8 = "C:\\Users\\Admin\\AppData\\Roaming\\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8\\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8.exe" iexplore.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8 = "C:\\Users\\Admin\\AppData\\Roaming\\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8\\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8.exe" iexplore.exe -
Processes:
Fenc_General Presentation.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Fenc_General Presentation.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
Fenc_General Presentation.exeFenc_General Presentation.exedescription pid process target process PID 3556 set thread context of 4960 3556 Fenc_General Presentation.exe Fenc_General Presentation.exe PID 4960 set thread context of 2000 4960 Fenc_General Presentation.exe iexplore.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
Fenc_General Presentation.exepid process 4960 Fenc_General Presentation.exe 4960 Fenc_General Presentation.exe 4960 Fenc_General Presentation.exe 4960 Fenc_General Presentation.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
iexplore.exedescription pid process Token: SeDebugPrivilege 2000 iexplore.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
Fenc_General Presentation.exeiexplore.exepid process 4960 Fenc_General Presentation.exe 2000 iexplore.exe -
Suspicious use of WriteProcessMemory 18 IoCs
Processes:
Fenc_General Presentation.exeFenc_General Presentation.exedescription pid process target process PID 3556 wrote to memory of 2164 3556 Fenc_General Presentation.exe schtasks.exe PID 3556 wrote to memory of 2164 3556 Fenc_General Presentation.exe schtasks.exe PID 3556 wrote to memory of 2164 3556 Fenc_General Presentation.exe schtasks.exe PID 3556 wrote to memory of 4960 3556 Fenc_General Presentation.exe Fenc_General Presentation.exe PID 3556 wrote to memory of 4960 3556 Fenc_General Presentation.exe Fenc_General Presentation.exe PID 3556 wrote to memory of 4960 3556 Fenc_General Presentation.exe Fenc_General Presentation.exe PID 3556 wrote to memory of 4960 3556 Fenc_General Presentation.exe Fenc_General Presentation.exe PID 3556 wrote to memory of 4960 3556 Fenc_General Presentation.exe Fenc_General Presentation.exe PID 3556 wrote to memory of 4960 3556 Fenc_General Presentation.exe Fenc_General Presentation.exe PID 3556 wrote to memory of 4960 3556 Fenc_General Presentation.exe Fenc_General Presentation.exe PID 4960 wrote to memory of 2000 4960 Fenc_General Presentation.exe iexplore.exe PID 4960 wrote to memory of 2000 4960 Fenc_General Presentation.exe iexplore.exe PID 4960 wrote to memory of 2000 4960 Fenc_General Presentation.exe iexplore.exe PID 4960 wrote to memory of 2000 4960 Fenc_General Presentation.exe iexplore.exe PID 4960 wrote to memory of 2000 4960 Fenc_General Presentation.exe iexplore.exe PID 4960 wrote to memory of 2000 4960 Fenc_General Presentation.exe iexplore.exe PID 4960 wrote to memory of 2000 4960 Fenc_General Presentation.exe iexplore.exe PID 4960 wrote to memory of 2000 4960 Fenc_General Presentation.exe iexplore.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
Fenc_General Presentation.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Fenc_General Presentation.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\Fenc_General Presentation.exe"C:\Users\Admin\AppData\Local\Temp\Fenc_General Presentation.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RfIFvdphuiI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA96F.tmp"2⤵
- Creates scheduled task(s)
-
C:\Users\Admin\AppData\Local\Temp\Fenc_General Presentation.exe"{path}"2⤵
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
-
C:\Program Files (x86)\Internet Explorer\iexplore.exeC:\Users\Admin\AppData\Local\Temp\Fenc_General Presentation.exe3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\tmpA96F.tmpFilesize
1KB
MD597f78de89e6530ee9c034c1a5893f54a
SHA18610123037073a5e2b1b4299853e7b36004793b4
SHA2563174ad92bb11931d2a945872921c7deac3fa4af1c0aab92ee24f91ec914d928e
SHA51214bc0d2869562898a3be10db6823fb5336f91f4a5255ad9641eb4164bdf0cbe269b74600153988678403dfa16f9ffe3f2bff1afc2aed67136c4b9d743419b257
-
memory/2164-135-0x0000000000000000-mapping.dmp
-
memory/3556-130-0x0000000000BE0000-0x0000000000C56000-memory.dmpFilesize
472KB
-
memory/3556-131-0x0000000005CC0000-0x0000000006264000-memory.dmpFilesize
5.6MB
-
memory/3556-132-0x00000000055F0000-0x0000000005682000-memory.dmpFilesize
584KB
-
memory/3556-133-0x00000000056A0000-0x00000000056AA000-memory.dmpFilesize
40KB
-
memory/3556-134-0x0000000007ED0000-0x0000000007F6C000-memory.dmpFilesize
624KB
-
memory/4960-137-0x0000000000000000-mapping.dmp
-
memory/4960-138-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
-
memory/4960-140-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
-
memory/4960-143-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB