8348f852775f70444139d4f2cf42fb6fedca972ff91c48eaed56739c840a75d4

Analysis

max time kernel
115s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25/07/2024, 11:31

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General

Target

zlib1.dll
Size

69KB
MD5

f5b8b7054675d6aaf4ce3e727395f402
SHA1

3045634965ca1b0d5f31a863ab1c34405f20ec03
SHA256

87ba7862b61b0ee592fb967d38dfd7636d361199788ab8557344251006a134b1
SHA512

b19efcdc5decf4643f6abc4d5da7a505affd083abd496f7e860e5cfceb32a99f17a2f62cfd08686140453db0cc56cb24d1d5ef88bf6f37dd021216b8c0944b3e
SSDEEP

1536:1nToIfXVguoBaNn4iQyqVInsCyIOsb3IO0MCVralp+Cv:dTBfXVZosLQyeQLQs18VralpBv

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5036	1696	WerFault.exe	84

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 1216 wrote to memory of 1696	1216	rundll32.exe	84
PID 1216 wrote to memory of 1696	1216	rundll32.exe	84
PID 1216 wrote to memory of 1696	1216	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlib1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlib1.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1696
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1696 -s 600
    3⤵
    - Program crash
    PID:5036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1696 -ip 1696
1⤵
PID:2124

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/1696-0-0x0000000061B80000-0x0000000061B96000-memory.dmp

Filesize
88KB

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