1b6dea7e8fc87592e350432fc1fa126b9e30d8e9c0cdd938033b9f19e366e458

Analysis

max time kernel
430s
max time network
1156s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
02/08/2024, 19:27

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General

Target

JJS-UI/resources/app.asar/build/JJSploitModule.dll
Size

117KB
MD5

80b6d5f12dfe42f21dc5ec5ee793ad08
SHA1

53aca73b99b75191bdce2a025151848b370dfeae
SHA256

0d7f23c4e4b1a3dd6e2e77465b4bbe1487a82e9681c327e48090abf3c726ec0f
SHA512

236fa76c080f915f221d0584445261b87c77425400f260555395f0f5a29ca3cffb6ee8c9e477d1d4895c10406e651c8d87771f1b1de889fca5bd6bc4f818bc9d
SSDEEP

3072:ObUR7NwgCAgXytiN3cG5AsiGEcDcaAyp/kfH8lh9rrR:xpmBAKytOM6AsgcDcMJP3R

Score

3^/10

discovery

Malware Config

Signatures

Program crash 2 IoCs

pid	pid_target	Process	procid_target
888	2940	WerFault.exe	80
1564	2940	WerFault.exe	80

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 2940	4564	rundll32.exe	80
PID 4564 wrote to memory of 2940	4564	rundll32.exe	80
PID 4564 wrote to memory of 2940	4564	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JJS-UI\resources\app.asar\build\JJSploitModule.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4564
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JJS-UI\resources\app.asar\build\JJSploitModule.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2940
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2940 -s 464
    3⤵
    - Program crash
    PID:888
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2940 -s 500
    3⤵
    - Program crash
    PID:1564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2940 -ip 2940
1⤵
PID:1036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2940 -ip 2940
1⤵
PID:424

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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