Analysis
-
max time kernel
151s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
03/10/2022, 03:01
Static task
static1
Behavioral task
behavioral1
Sample
751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
-
Target
751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe
-
Size
156KB
-
MD5
5c175e39c39e7b441e5066d090479ca0
-
SHA1
f2cb3e42fb44cdbd18f1d5ead5af65d3d34a23da
-
SHA256
751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a
-
SHA512
3bea99bc97bb82cb64d226a40149048d2150080be77c6c743475f6b5a756d1a3fa7cc397c9f68bad992ff8844a2c153aeea7561a06dc75816a957c81d9701985
-
SSDEEP
3072:DpJW7AiFgyqTRlU3NhCBvu9pjZEwDxdr8JrC9y:9JmORl+NhwWrjuwDQUA
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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cjfaav.exe -
Executes dropped EXE 1 IoCs
pid Process 4504 cjfaav.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation 751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /H" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /o" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /q" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /v" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /N" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /r" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /B" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /k" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /g" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /T" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /V" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /e" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /L" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /G" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /J" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /X" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /w" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /t" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /m" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /j" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /p" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /f" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /Q" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /x" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /i" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /I" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /a" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /s" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /U" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /K" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /b" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /W" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /d" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /P" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /p" 751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /A" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /y" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /D" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /Y" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /C" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /z" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /l" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /F" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /M" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /E" cjfaav.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /h" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /Z" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /O" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /c" cjfaav.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /S" cjfaav.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cjfaav = "C:\\Users\\Admin\\cjfaav.exe /u" cjfaav.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 2640 751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe 2640 751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe 4504 cjfaav.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2640 751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe 4504 cjfaav.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2640 wrote to memory of 4504 2640 751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe 87 PID 2640 wrote to memory of 4504 2640 751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe 87 PID 2640 wrote to memory of 4504 2640 751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.exe"C:\Users\Admin\AppData\Local\Temp\751cc9184210f15183a6df465d30a8f9904839e3312107615eba1d4b076e303a.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:2640 -
C:\Users\Admin\cjfaav.exe"C:\Users\Admin\cjfaav.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:4504
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
156KB
MD5763b3d52b384cab22b298ae05870ed81
SHA127446160b5d06819dbbddd2452d3c94d8c983d53
SHA256fc71e62961d49dc5ac585a63eb147f5ec90b28f66eeaffa95387e0d5c1c9e09d
SHA51233d56c5c3b6aedd1a92b1500ce22ee0a21894e75c9fc6f1e44f5f0d3c2ec65e87f42f1ac03e4f275f562fb27084e541d68b1379072a010be521f1894c6c9d506
-
Filesize
156KB
MD5763b3d52b384cab22b298ae05870ed81
SHA127446160b5d06819dbbddd2452d3c94d8c983d53
SHA256fc71e62961d49dc5ac585a63eb147f5ec90b28f66eeaffa95387e0d5c1c9e09d
SHA51233d56c5c3b6aedd1a92b1500ce22ee0a21894e75c9fc6f1e44f5f0d3c2ec65e87f42f1ac03e4f275f562fb27084e541d68b1379072a010be521f1894c6c9d506