8348f852775f70444139d4f2cf42fb6fedca972ff91c48eaed56739c840a75d4

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
25-07-2024 11:31

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General

Target

zlib.dll
Size

52KB
MD5

c88a6474424b1bf960e7ebb4b28d0ed0
SHA1

1405881be65153a661feab43115532f7ec80c077
SHA256

0df0c22bf411ad670d7b8fe5a533e4831313d5a3118cf9216389c642c90ec2f9
SHA512

a4c273f474cf15b86dc038a2bfceb28ee17178de20aa5c17378b15e92159cf70c29549d4e7254ae351d45054e4d15c3b87e5808fad9899f9417864fcb6f14d78
SSDEEP

768:tRagNniRy7pA2cp+k8AVfgibjlR1L+zwWMyK3yEXuLiOxPs6:tR6RmpITVfgin1iz91jCb3

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1960	1940	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 2348 wrote to memory of 1940	2348	rundll32.exe	30
PID 2348 wrote to memory of 1940	2348	rundll32.exe	30
PID 2348 wrote to memory of 1940	2348	rundll32.exe	30
PID 2348 wrote to memory of 1940	2348	rundll32.exe	30
PID 2348 wrote to memory of 1940	2348	rundll32.exe	30
PID 2348 wrote to memory of 1940	2348	rundll32.exe	30
PID 2348 wrote to memory of 1940	2348	rundll32.exe	30
PID 1940 wrote to memory of 1960	1940	rundll32.exe	31
PID 1940 wrote to memory of 1960	1940	rundll32.exe	31
PID 1940 wrote to memory of 1960	1940	rundll32.exe	31
PID 1940 wrote to memory of 1960	1940	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlib.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlib.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1940
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 224
    3⤵
    - Program crash
    PID:1960

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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