135a0bd8f72be9b5c2201ebc19efe17dcc0d487697ca7fa90880a36c887e6b57

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
29/09/2024, 07:24

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General

Target

$PLUGINSDIR/cqzeykv.dll
Size

158KB
MD5

ffcf49e7274141b243935bc0ca953422
SHA1

91f0c6105ccec1b69a170a1f42e821aab0289616
SHA256

af2ba9f235a043ba80098170a92e5ae256c2768a563e04f24c58234738587b74
SHA512

e23248f7f6e4d6ffdfbfd3dfbf37cb673497b1b3418f4ba0923861f86b3eff6c82c055b8f29f618afe0bc66a51a07cadbf237196645be8b428b8192b48cb8f36
SSDEEP

1536:Gwy7kuZy8DEBYXFWGMRsu0lNnSyyf2EzVK+zy5WQMn/c02kUsjf3+We+5cCi6Ish:Gwywqf8ea+2DQMkH91z+ue5syfY3a2h

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2488	2300	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 2172 wrote to memory of 2300	2172	rundll32.exe	30
PID 2172 wrote to memory of 2300	2172	rundll32.exe	30
PID 2172 wrote to memory of 2300	2172	rundll32.exe	30
PID 2172 wrote to memory of 2300	2172	rundll32.exe	30
PID 2172 wrote to memory of 2300	2172	rundll32.exe	30
PID 2172 wrote to memory of 2300	2172	rundll32.exe	30
PID 2172 wrote to memory of 2300	2172	rundll32.exe	30
PID 2300 wrote to memory of 2488	2300	rundll32.exe	31
PID 2300 wrote to memory of 2488	2300	rundll32.exe	31
PID 2300 wrote to memory of 2488	2300	rundll32.exe	31
PID 2300 wrote to memory of 2488	2300	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\cqzeykv.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\cqzeykv.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 220
    3⤵
    - Program crash
    PID:2488

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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