aa86c065eb6782b94d0ed16ad51a1d042db48e0acc3b7891a205d98135d43bda

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-01-2025 15:57

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General

Target

tier0_s.dll
Size

341KB
MD5

884013332bf332e4dd8cbf0109a8cfeb
SHA1

c01789d661d465ca29d20174d8f5d29afb1fcffa
SHA256

8ed104f6d7a50f95d515005bf6bd5569cd2dc0107119aa3d91e21dd7ba777e98
SHA512

ea18f416b1295edcfc197c685d56030246097bf95ffffa46f13a16753d05d95a1adb83b5ba0669eaa1049856ea2486ca0fc49507df7d41572de80701e9852f64
SSDEEP

6144:DO5PGFHiJNurwiq3u6FukK7hrYmFX0A2qu7ItONk+Z1s4gDT+x5/fXckKk:K2HiVRukK7hrnFh2qos4gDTAnlx

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1500	1040	WerFault.exe	28

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 2412 wrote to memory of 1040	2412	rundll32.exe	28
PID 2412 wrote to memory of 1040	2412	rundll32.exe	28
PID 2412 wrote to memory of 1040	2412	rundll32.exe	28
PID 2412 wrote to memory of 1040	2412	rundll32.exe	28
PID 2412 wrote to memory of 1040	2412	rundll32.exe	28
PID 2412 wrote to memory of 1040	2412	rundll32.exe	28
PID 2412 wrote to memory of 1040	2412	rundll32.exe	28
PID 1040 wrote to memory of 1500	1040	rundll32.exe	29
PID 1040 wrote to memory of 1500	1040	rundll32.exe	29
PID 1040 wrote to memory of 1500	1040	rundll32.exe	29
PID 1040 wrote to memory of 1500	1040	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\tier0_s.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\tier0_s.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1040
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1040 -s 220
    3⤵
    - Program crash
    PID:1500

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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