e4b210caea4432928727e860786c36e5ef6ecacced4b00374a049342d4b62183

Analysis

max time kernel
147s
max time network
278s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21/01/2025, 09:36

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General

Target

concrt140.dll
Size

254KB
MD5

f36dae6ea00f102b60a5011af0732123
SHA1

06fabdbf1fa14b5a637716f9f7a28c95ea4a8661
SHA256

0a3894dd420ed6b4c7ebbde463dbbde69cdb032e290b1c86c21ccdaa4da95526
SHA512

c585e25ac9d733ca82d36d4cee0fa5f7d34a0455c359e010c501d1474c612bc73429093ba302ae14222d7e3a89d5b11777529b3005c7c0966aff06c92c7cce12
SSDEEP

6144:fCoAisTYsJ8wmqr85bqo0MJQ6AZiJeqaajUQnLg2CJuuwr/12z/5vC498C:q0CpiAIaDuuwwzr8C

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4120	940	WerFault.exe	82

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 2292 wrote to memory of 940	2292	rundll32.exe	82
PID 2292 wrote to memory of 940	2292	rundll32.exe	82
PID 2292 wrote to memory of 940	2292	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\concrt140.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\concrt140.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:940
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 940 -s 604
    3⤵
    - Program crash
    PID:4120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 940 -ip 940
1⤵
PID:4672

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

Windows 7 deprecation

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