0ba8f850d3a339dc5c6c477ae00cc970e3df4c1da1f48d9cbb43083cebaf8747

Analysis

max time kernel
136s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12-08-2024 06:39

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General

Target

ExSoftware/Debug/api-ms-win-crt-filesystem-l1-1-0.dll
Size

19KB
MD5

228c6bbe1bce84315e4927392a3baee5
SHA1

ba274aa567ad1ec663a2f9284af2e3cb232698fb
SHA256

ac0cec8644340125507dd0bc9a90b1853a2d194eb60a049237fb5e752d349065
SHA512

37a60cce69e81f68ef62c58bba8f2843e99e8ba1b87df9a5b561d358309e672ae5e3434a10a3dde01ae624d1638da226d42c64316f72f3d63b08015b43c56cab
SSDEEP

384:Cq6nWm5CZW1hW9YBm0GftpBjVem3SuPvlg+0Pd:T6nWm5CIhViDeKPmd

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1140	4360	WerFault.exe	85

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 3 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 3612 wrote to memory of 4360	3612	rundll32.exe	85
PID 3612 wrote to memory of 4360	3612	rundll32.exe	85
PID 3612 wrote to memory of 4360	3612	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ExSoftware\Debug\api-ms-win-crt-filesystem-l1-1-0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3612
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ExSoftware\Debug\api-ms-win-crt-filesystem-l1-1-0.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4360
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 600
    3⤵
    - Program crash
    PID:1140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4360 -ip 4360
1⤵
PID:464

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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