f3d82eb7c11292422341820f0c5872f0b96b3a7e0c4c6bcf32a94c237b0cf571

Analysis

max time kernel
149s
max time network
153s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
05/06/2026, 17:44

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General

Target
UnzDll.dll
Size 119KB
Sample260605-wbfpcacz8r
SHA256 f3d82eb7c11292422341820f0c5872f0b96b3a7e0c4c6bcf32a94c237b0cf571
MD5 df685519e6ad0897cd26b778172167b5
SHA1 b826b4386a5929bc6f1fa2c7625c75d0743fdd78
SHA512 66dd73d4ca2e9443c0d5b492f68d2240c3412850ce38d67b5d47a85d73c9254e4d293b13b93cda6df3b8b77594d61b75f738981af6f5e1f9bacd709f6809cb78
SSDEEP 3072:Uobjs5y9wX0B+LjOKvSkGburX5KwPmhAorY6:h/2yw0B+LaKaLub+hA
TLSH
T11EC38D12FD50C031E8A345B12E392B36DE3DF6601716821763A585A6DEAD291FF063BF
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3736	2088	WerFault.exe	80

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 1 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 2088	2940	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\UnzDll.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2940
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\UnzDll.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2088
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 500
    3⤵
    - Program crash
    PID:3736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2088 -ip 2088
1⤵
PID:2108

Network

MITRE ATT&CK Enterprise v16

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

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Downloads

memory/2088-0-0x0000000004000000-0x0000000004023000-memory.dmp

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