3fc05836e01475cf81027002ed8a67bb54b98462108899d1026170226ef155b2

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03-02-2025 03:29

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2/zlib1d.dll
Size

192KB
MD5

0d385319da3dba49656a0f4f6b8e8dfe
SHA1

33519585735e7e68681b77edbe2fe14c038a9332
SHA256

a75b15cfa275bd74719de4b1abb3fabe2744878c68663d22305acf91463ebaba
SHA512

c31cb6f88158e8c7405858576a00d7fabca90630ee62a79462cf01bf5768d4fe6683b7c5e15aba2626b819a0c9e3cf60f26c903d5ec38a241a7319fca84975d3
SSDEEP

3072:BeWanhUoastBy/F/RBMxvdW2TBfqFaseJt:I/9cyxvdW2TBiFas4t

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2792	2404	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 2528 wrote to memory of 2404	2528	rundll32.exe	30
PID 2528 wrote to memory of 2404	2528	rundll32.exe	30
PID 2528 wrote to memory of 2404	2528	rundll32.exe	30
PID 2528 wrote to memory of 2404	2528	rundll32.exe	30
PID 2528 wrote to memory of 2404	2528	rundll32.exe	30
PID 2528 wrote to memory of 2404	2528	rundll32.exe	30
PID 2528 wrote to memory of 2404	2528	rundll32.exe	30
PID 2404 wrote to memory of 2792	2404	rundll32.exe	31
PID 2404 wrote to memory of 2792	2404	rundll32.exe	31
PID 2404 wrote to memory of 2792	2404	rundll32.exe	31
PID 2404 wrote to memory of 2792	2404	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2\zlib1d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2\zlib1d.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2404
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2404 -s 224
    3⤵
    - Program crash
    PID:2792

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

Replay Monitor

Loading Replay Monitor...

Downloads