Analysis
-
max time kernel
189s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
05/01/2024, 12:07
Behavioral task
behavioral1
Sample
43a6a406c7c3020c60787e881f658e2d.dll
Resource
win7-20231215-en
windows7-x64
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
43a6a406c7c3020c60787e881f658e2d.dll
Resource
win10v2004-20231215-en
windows10-2004-x64
7 signatures
150 seconds
General
-
Target
43a6a406c7c3020c60787e881f658e2d.dll
-
Size
111KB
-
MD5
43a6a406c7c3020c60787e881f658e2d
-
SHA1
9891c2253d50c6459cacd5ca8a8e411ff71ba1ba
-
SHA256
1a57da057e9409384bc27102df1733de7c4197341813930ff5b7adc7abfdcd99
-
SHA512
88715e48f1c46dd07ed4b743278aec5b6ed9593663e0808fbbf2809fe100b245916f009018bd9d8582069d4ffc0549182464d76693645183660df8a856060429
-
SSDEEP
1536:CjbMs6DZ8vp2f89uEYFHlbnt0DfCEfyHHe7EgUOhCSm2K8bDs7oV:C/MbF0Wk7fyn8CAbD1V
Score
7/10
Malware Config
Signatures
-
resource yara_rule behavioral1/memory/2516-0-0x0000000010000000-0x000000001001E000-memory.dmp upx behavioral1/memory/2516-1-0x0000000010000000-0x000000001001E000-memory.dmp upx behavioral1/memory/2516-2-0x0000000010000000-0x000000001001E000-memory.dmp upx behavioral1/memory/3016-7-0x0000000010000000-0x000000001001E000-memory.dmp upx behavioral1/files/0x001000000000b1f5-6.dat upx behavioral1/memory/2516-8-0x0000000010000000-0x000000001001E000-memory.dmp upx behavioral1/memory/3016-9-0x0000000010000000-0x000000001001E000-memory.dmp upx -
Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
pid Process 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\msjeome.dll rundll32.exe File opened for modification C:\Windows\msjeome.dll rundll32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9} rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "43a6a406c7c3020c60787e881f658e2d.dll,1312253952,359527695,-1814625877" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32 rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe 3016 rundll32.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2808 wrote to memory of 2516 2808 rundll32.exe 29 PID 2808 wrote to memory of 2516 2808 rundll32.exe 29 PID 2808 wrote to memory of 2516 2808 rundll32.exe 29 PID 2808 wrote to memory of 2516 2808 rundll32.exe 29 PID 2808 wrote to memory of 2516 2808 rundll32.exe 29 PID 2808 wrote to memory of 2516 2808 rundll32.exe 29 PID 2808 wrote to memory of 2516 2808 rundll32.exe 29 PID 2516 wrote to memory of 3016 2516 rundll32.exe 30 PID 2516 wrote to memory of 3016 2516 rundll32.exe 30 PID 2516 wrote to memory of 3016 2516 rundll32.exe 30 PID 2516 wrote to memory of 3016 2516 rundll32.exe 30 PID 2516 wrote to memory of 3016 2516 rundll32.exe 30 PID 2516 wrote to memory of 3016 2516 rundll32.exe 30 PID 2516 wrote to memory of 3016 2516 rundll32.exe 30
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\43a6a406c7c3020c60787e881f658e2d.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2808 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\43a6a406c7c3020c60787e881f658e2d.dll,#12⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2516 -
C:\Windows\SysWOW64\rundll32.exerundll32 "C:\Windows\msjeome.dll",_RunAs@163⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3016
-
-
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
111KB
MD543a6a406c7c3020c60787e881f658e2d
SHA19891c2253d50c6459cacd5ca8a8e411ff71ba1ba
SHA2561a57da057e9409384bc27102df1733de7c4197341813930ff5b7adc7abfdcd99
SHA51288715e48f1c46dd07ed4b743278aec5b6ed9593663e0808fbbf2809fe100b245916f009018bd9d8582069d4ffc0549182464d76693645183660df8a856060429