30119e1f90ac99fdc496f0ce8c1a51a5e406667c1310588f792879647a9c1bf6

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-01-2025 14:51

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General

Target

lib\Viewer.dll
Size

1.2MB
MD5

9cc1be4fa12ee5d1ef9eb1a293bdbfa5
SHA1

6b33a6ecb4e4b66a1cac0d3f650c280f22cc0ea2
SHA256

9d75768379185cf440a0cfa980116d3d6dbb582f6db01221ba1a61f5f636307e
SHA512

88de6d23d30cdc629ec81c3187f05e278aeef4c51b5c8e99fbb0367fbae73b3c59ef446e3efac1adaf565335c5284e670a748bf5fc85aa197439a9ea29a54040
SSDEEP

12288:Ajw2fKMk8tbPxkx1DzY/uffIJx366gejyfVduNPGH4vIeFO/:AjTKMk8NaY/ufAJxKYjyf3uN8RH/

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2724	2704	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 2652 wrote to memory of 2704	2652	rundll32.exe	30
PID 2652 wrote to memory of 2704	2652	rundll32.exe	30
PID 2652 wrote to memory of 2704	2652	rundll32.exe	30
PID 2652 wrote to memory of 2704	2652	rundll32.exe	30
PID 2652 wrote to memory of 2704	2652	rundll32.exe	30
PID 2652 wrote to memory of 2704	2652	rundll32.exe	30
PID 2652 wrote to memory of 2704	2652	rundll32.exe	30
PID 2704 wrote to memory of 2724	2704	rundll32.exe	31
PID 2704 wrote to memory of 2724	2704	rundll32.exe	31
PID 2704 wrote to memory of 2724	2704	rundll32.exe	31
PID 2704 wrote to memory of 2724	2704	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\lib\Viewer.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\lib\Viewer.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2704
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2704 -s 260
    3⤵
    - Program crash
    PID:2724

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/2704-0-0x0000000074770000-0x00000000748B6000-memory.dmp

Filesize
1.3MB

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