Windows 7 deprecation
Windows 7 will be removed from tria.ge on 2025-03-31
Analysis
-
max time kernel
154s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
30/10/2022, 19:57
Static task
static1
Behavioral task
behavioral1
Sample
cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
-
Target
cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe
-
Size
132KB
-
MD5
92397487cb24bed965a583a92d76b912
-
SHA1
da80d9f2be8f00ccc07835eb516aff46a9c688b8
-
SHA256
cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575
-
SHA512
68a43954555ffecbe7c2d564faa5310141a069fe48cc3500539df492a50e21345b1e376f1d7c06eba0216db7f156d3f67f5ae8fb7bae2b1f97388c2f86002176
-
SSDEEP
3072:VApl++xspX7//GSeIlLXkskMvB00bsMyXeWLku:VApl+I+7//leIBXTkMZ00bsMyXeAk
Score
10/10
Malware Config
Signatures
-
Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" krfok.exe -
Executes dropped EXE 1 IoCs
pid Process 1968 krfok.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe -
Adds Run key to start application 2 TTPs 55 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /s" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /c" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /A" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /B" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /v" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /n" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /x" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /t" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /d" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /D" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /N" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /J" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /L" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /K" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /E" krfok.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /q" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /P" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /i" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /g" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /w" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /X" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /z" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /o" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /Z" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /U" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /e" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /C" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /R" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /Q" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /H" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /k" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /M" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /I" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /j" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /S" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /V" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /G" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /B" cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /a" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /Y" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /O" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /W" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /b" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /y" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /T" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /m" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /r" krfok.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /p" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /h" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /l" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /f" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /u" krfok.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\krfok = "C:\\Users\\Admin\\krfok.exe /F" krfok.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4732 cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe 4732 cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe 1968 krfok.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4732 cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe 1968 krfok.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4732 wrote to memory of 1968 4732 cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe 81 PID 4732 wrote to memory of 1968 4732 cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe 81 PID 4732 wrote to memory of 1968 4732 cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe"C:\Users\Admin\AppData\Local\Temp\cb075d75bc6df350fa99837968b3e02428a019d44b2bb2bfa12b81c99ee58575.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4732 -
C:\Users\Admin\krfok.exe"C:\Users\Admin\krfok.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1968
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
132KB
MD5762f5fa13f290c635cffb82b23ca3911
SHA1faf256636ffb7478fcbf540d228022edd643858d
SHA2566858b1fb7e764d3f17f92ca76a1fb60232337f65d056bf3ebe5484566b7e94f8
SHA51265eb07887d762577c0e7376d1195e5e209ad5d4b6e5e38b2f876d785ba36a95b609ac862fd8a924f599cdc5ef660428faabaf17cad0fef02f5ff8bc4ec0018d5
-
Filesize
132KB
MD5762f5fa13f290c635cffb82b23ca3911
SHA1faf256636ffb7478fcbf540d228022edd643858d
SHA2566858b1fb7e764d3f17f92ca76a1fb60232337f65d056bf3ebe5484566b7e94f8
SHA51265eb07887d762577c0e7376d1195e5e209ad5d4b6e5e38b2f876d785ba36a95b609ac862fd8a924f599cdc5ef660428faabaf17cad0fef02f5ff8bc4ec0018d5