74ae6f1ee17959064c9ceed0af1bbdf49d787860943967f9e936b9da2282f465

Analysis

max time kernel
139s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18/10/2024, 12:18

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General

Target

$PLUGINSDIR/KuWoNsis.dll
Size

48KB
MD5

b3e7956209bd65b8d91bb7a7682ad49d
SHA1

be0823d6b65e8a269639b994598d2459388112d0
SHA256

1dcd885560725fdc5ae985b0aa6abddff340247075815c059ef0665d2c4b5faf
SHA512

c22320f84afa0c7a19cb5baa35693dcc5dee0eb743444a028a58fb64082e1a7c5e7ca48d658cb1cfe08a709db425d36fdc4c7bb07c3bbcbbbd2215adf54a253c
SSDEEP

768:Bd03YSWRSKt6ieqFIamCgXMaFwAUjrb/J83vZepab3Djd:jyYfUKt3eqSpXMaFw1j/yvZepgDjd

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1056	4060	WerFault.exe	86

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 1940 wrote to memory of 4060	1940	rundll32.exe	86
PID 1940 wrote to memory of 4060	1940	rundll32.exe	86
PID 1940 wrote to memory of 4060	1940	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\KuWoNsis.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\KuWoNsis.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4060
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4060 -s 612
    3⤵
    - Program crash
    PID:1056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4060 -ip 4060
1⤵
PID:544

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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