ca5cdb12d7446accecbcf99edc804f3b538cb96f0bedf407415cc5aaba7bb165

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
07/09/2024, 13:11

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General

Target

$PLUGINSDIR/KuWoNsis_new.dll
Size

101KB
MD5

5b7d3fc9651089f373df83a9bdc922a7
SHA1

e0ee059b261e89bef6bdc9392ea4a579686a410f
SHA256

cb1e6695c6d55c3bd4b8d12cbe6a2e48687e72c84223256a3431560b2d4d7e59
SHA512

5feaf4de80e9057c9b3fc2d5ef2a5b7ef857fa7de67e5e5aa56915d06cd42b8544a8e707140bf182ad4907fc51a022fa597316f27e481abe170ba2548d64f911
SSDEEP

1536:D3h2lAZyQr64O173t81vfTvkrkuV4OclyTJafC1:Lh2l0yG6Z3O13y4OcluUC

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2864	2852	WerFault.exe	30

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 11 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 2852	2696	rundll32.exe	30
PID 2696 wrote to memory of 2852	2696	rundll32.exe	30
PID 2696 wrote to memory of 2852	2696	rundll32.exe	30
PID 2696 wrote to memory of 2852	2696	rundll32.exe	30
PID 2696 wrote to memory of 2852	2696	rundll32.exe	30
PID 2696 wrote to memory of 2852	2696	rundll32.exe	30
PID 2696 wrote to memory of 2852	2696	rundll32.exe	30
PID 2852 wrote to memory of 2864	2852	rundll32.exe	31
PID 2852 wrote to memory of 2864	2852	rundll32.exe	31
PID 2852 wrote to memory of 2864	2852	rundll32.exe	31
PID 2852 wrote to memory of 2864	2852	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\KuWoNsis_new.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\KuWoNsis_new.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2852
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2852 -s 224
    3⤵
    - Program crash
    PID:2864

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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