0b82dc0c1bdb222a96f2f4d191fdf4d8e93ca5c41f2c9af2e92882e1c47263f5

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
14-09-2024 16:05

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General

Target

concrt140.dll
Size

245KB
MD5

0338a505daff90b36936fc1418eb112d
SHA1

8a55fd91bf548a5d65c4ca1088a168b91b90d656
SHA256

20094beed98a02da4f9fa1bf07a36c38bc10b14a08e7b3f3a46a7ff93941a191
SHA512

56da5d7fc6ce5ad92b9b5e90bd2235391572a4d57dc844f311de076a01c7e4f3207e15e2eba34997e9d56f05be263a52d1dc1bf595081ece69db1cc9af145cc3
SSDEEP

6144:ac36PHuORQstn8a9/y46BIgyM5YG+1dfdkznsI0I9sys6Sr6twsCOvPMF12z/fym:13XmWiLfdkYI1C61PMGzg+3

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1348 1948 WerFault.exe rundll32.exe
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

pid	pid_target	process	target process
1348	1948	WerFault.exe	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	target process
PID 1988 wrote to memory of 1948	1988	rundll32.exe	rundll32.exe
PID 1988 wrote to memory of 1948	1988	rundll32.exe	rundll32.exe
PID 1988 wrote to memory of 1948	1988	rundll32.exe	rundll32.exe
PID 1988 wrote to memory of 1948	1988	rundll32.exe	rundll32.exe
PID 1988 wrote to memory of 1948	1988	rundll32.exe	rundll32.exe
PID 1988 wrote to memory of 1948	1988	rundll32.exe	rundll32.exe
PID 1988 wrote to memory of 1948	1988	rundll32.exe	rundll32.exe
PID 1948 wrote to memory of 1348	1948	rundll32.exe	WerFault.exe
PID 1948 wrote to memory of 1348	1948	rundll32.exe	WerFault.exe
PID 1948 wrote to memory of 1348	1948	rundll32.exe	WerFault.exe
PID 1948 wrote to memory of 1348	1948	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\concrt140.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1988
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\concrt140.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1948
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1948 -s 220
    3⤵
    - Program crash
    PID:1348

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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