4fbdde800542ed7446db9a2a87ee0da5a8479f547779aa138a4d3f5a17343677

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
27/02/2025, 02:39

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General

Target

Codecs/Haali/mkzlib.dll
Size

78KB
MD5

a09e606469d3976fc4be96736c7d2671
SHA1

b85486b3a4ef6fe84fe5a7e16878ee09a04b066d
SHA256

6d057b4fde46a5dd0550b73989011a050eb12868dda30787ad3673e569dc6d11
SHA512

611e9ee2396bd3449d0bb143dd02a844935624a474c6ec50289b70b2f69d5e603d900fc4274d7439e92bc3453e1ff8f6464dd483d31c45d6944dc16e5cc5a4f4
SSDEEP

1536:c+DFEuj1NkXaMyuWqezcTo8SRlGIIObnToIfFT+aG:VzgX0zcelGO7TBfFT+aG

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2912	2972	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 2916 wrote to memory of 2972	2916	rundll32.exe	30
PID 2916 wrote to memory of 2972	2916	rundll32.exe	30
PID 2916 wrote to memory of 2972	2916	rundll32.exe	30
PID 2916 wrote to memory of 2972	2916	rundll32.exe	30
PID 2916 wrote to memory of 2972	2916	rundll32.exe	30
PID 2916 wrote to memory of 2972	2916	rundll32.exe	30
PID 2916 wrote to memory of 2972	2916	rundll32.exe	30
PID 2972 wrote to memory of 2912	2972	rundll32.exe	31
PID 2972 wrote to memory of 2912	2972	rundll32.exe	31
PID 2972 wrote to memory of 2912	2972	rundll32.exe	31
PID 2972 wrote to memory of 2912	2972	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Codecs\Haali\mkzlib.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Codecs\Haali\mkzlib.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2972
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2972 -s 224
    3⤵
    - Program crash
    PID:2912

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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