Analysis
-
max time kernel
172s -
max time network
189s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
26-11-2022 18:36
Static task
static1
Behavioral task
behavioral1
Sample
9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe
Resource
win7-20220812-en
windows7-x64
10 signatures
150 seconds
General
-
Target
9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe
-
Size
350KB
-
MD5
22a4ca0bb8c69559d1705afcfd19036e
-
SHA1
1e5a7bd56f9c80ea45c36a15a49cd922c1a4b22b
-
SHA256
9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f
-
SHA512
1defcf24711937b3a078a6221189e80ea15788ca0a4274bb0da52708c7af45fb51eda68f78e98e13de189478114f3efef3361f9cc5a3a99df0888b9cb331d374
-
SSDEEP
6144:K7NnAkDl9Rymx8mni62kJmj5SNw9IQV+REZrHfUT0+2ZXShqL:IXDlTyA8mi69JuXGQV4GHfUT0+2ZCY
Malware Config
Signatures
-
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SYSTEM.lnk 9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini RegAsm.exe File opened for modification C:\Windows\assembly\Desktop.ini RegAsm.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3052 set thread context of 4728 3052 9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe 82 -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly RegAsm.exe File created C:\Windows\assembly\Desktop.ini RegAsm.exe File opened for modification C:\Windows\assembly\Desktop.ini RegAsm.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3052 9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe 3052 9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4728 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3052 9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe Token: SeDebugPrivilege 4728 RegAsm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4728 RegAsm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3052 wrote to memory of 4728 3052 9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe 82 PID 3052 wrote to memory of 4728 3052 9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe 82 PID 3052 wrote to memory of 4728 3052 9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe 82 PID 3052 wrote to memory of 4728 3052 9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe 82 PID 3052 wrote to memory of 4728 3052 9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe 82 PID 3052 wrote to memory of 4728 3052 9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe 82 PID 3052 wrote to memory of 4728 3052 9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe 82 PID 3052 wrote to memory of 4728 3052 9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe 82
Processes
-
C:\Users\Admin\AppData\Local\Temp\9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe"C:\Users\Admin\AppData\Local\Temp\9f6da3708198e2274424357250b5842d627f1486373731f88d520ecd66b2275f.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3052 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4728
-