1a34bba303197eade878b483cd8b02c2bd6bd2af9d5ec501bc61b4b318704f0c

Analysis

max time kernel
95s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-09-2024 08:04

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General

Target

zlib1.dll
Size

70KB
MD5

26523ebace164f8cfda81e4932b690de
SHA1

de64c113d354784b3f1670bc44b2f4cfa9673260
SHA256

f184377a93bdd583506a17935acf1b5055f3f5b23701b8d78e2e39113a1f510c
SHA512

a66628fcbd11a82899dee088d5a65cb0a60085cb392622e16e2a25dd3e591bffc21211f1c7141e0f5fbc0ca0fe396e5fed3edc819d78b6ab2af539eb2947f4b0
SSDEEP

1536:qtS2Goq8LMFgynEcCQ50bnik/yfF8QZeRnToIfA/IOxIOCmbV:lTP50Cz+TBfAxbCmJ

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4328	1788	WerFault.exe	81

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 3 IoCs

description	pid	Process	procid_target
PID 4720 wrote to memory of 1788	4720	rundll32.exe	81
PID 4720 wrote to memory of 1788	4720	rundll32.exe	81
PID 4720 wrote to memory of 1788	4720	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlib1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4720
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlib1.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1788
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 600
    3⤵
    - Program crash
    PID:4328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1788 -ip 1788
1⤵
PID:436

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

Replay Monitor

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Downloads

memory/1788-0-0x0000000062E80000-0x0000000062E98000-memory.dmp

Filesize
96KB

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