0978712dbec1d91834dea2ca5f5e2115f32ab576ac57d40ff0a1ea337fecdae9

Analysis

max time kernel
436s
max time network
1161s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
06-12-2024 19:44

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General

Target

massexe/msvcr100.dll
Size

755KB
MD5

0e37fbfa79d349d672456923ec5fbbe3
SHA1

4e880fc7625ccf8d9ca799d5b94ce2b1e7597335
SHA256

8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
SHA512

2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630
SSDEEP

12288:nMmCy3nAgPAxN9ueqix/HEmxsvGrif8ZSy+rdQw2QRAtd74/vmYK6H3BVoe3z:MmCy3KxW3ixPEmxsvGrm8Z6r+JQPzV7z

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1700	752	WerFault.exe	81

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 1676 wrote to memory of 752	1676	rundll32.exe	81
PID 1676 wrote to memory of 752	1676	rundll32.exe	81
PID 1676 wrote to memory of 752	1676	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\massexe\msvcr100.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\massexe\msvcr100.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:752
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 752 -s 600
    3⤵
    - Program crash
    PID:1700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 752 -ip 752
1⤵
PID:1732

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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