5bdc0f75a9f85a09d9e656d5a9b2ddc21022ca78800545662a46b55a6f3e4200

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-10-2024 20:12

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General

Target

【GM工具】/msvcr71.dll
Size

340KB
MD5

86f1895ae8c5e8b17d99ece768a70732
SHA1

d5502a1d00787d68f548ddeebbde1eca5e2b38ca
SHA256

8094af5ee310714caebccaeee7769ffb08048503ba478b879edfef5f1a24fefe
SHA512

3b7ce2b67056b6e005472b73447d2226677a8cadae70428873f7efa5ed11a3b3dbf6b1a42c5b05b1f2b1d8e06ff50dfc6532f043af8452ed87687eefbf1791da
SSDEEP

6144:OcV9z83OtqxnEYmt3NEnvfF+Tbmbw6An8FMciFMNrb3YgxxpbCAOxO2ElvlE:Ooz83OtIEzW+/m/AyF7bCrO/E

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2312	3044	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

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	Process	procid_target
PID 3040 wrote to memory of 3044	3040	rundll32.exe	30
PID 3040 wrote to memory of 3044	3040	rundll32.exe	30
PID 3040 wrote to memory of 3044	3040	rundll32.exe	30
PID 3040 wrote to memory of 3044	3040	rundll32.exe	30
PID 3040 wrote to memory of 3044	3040	rundll32.exe	30
PID 3040 wrote to memory of 3044	3040	rundll32.exe	30
PID 3040 wrote to memory of 3044	3040	rundll32.exe	30
PID 3044 wrote to memory of 2312	3044	rundll32.exe	31
PID 3044 wrote to memory of 2312	3044	rundll32.exe	31
PID 3044 wrote to memory of 2312	3044	rundll32.exe	31
PID 3044 wrote to memory of 2312	3044	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\【GM工具】\msvcr71.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\【GM工具】\msvcr71.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3044
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 224
    3⤵
    - Program crash
    PID:2312

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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