0ec7ca9a453c0fe7ac1b91dbae74a8b77e788c490b65365896d2d319128431d6

Analysis

max time kernel
89s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2024 13:47

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General

Target

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

13KB
MD5

4ec243792d382305db59dc78b72d0a1e
SHA1

63b7285646c72ee640d34cdc200bfc5863db3563
SHA256

56e0bdf91edb21f5f5041f052723025c059a11360bb745f965a9903de9c61756
SHA512

88f648d45927db65ff8cead4bb1959b1297410bf3f5b3b2783a173d708649260a61470342694de8b93e9c1657de64db43db40ee71acc661b03786c0921d68d4b
SSDEEP

192:b7q6nWlC0i5C5WOhWWT71ojDBQABJHTTKJqnajLQvTP+8jIrF7:/q6nWm5C5WOhWXDBRJHTGJlvQyUIrF7

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4664	3308	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 3728 wrote to memory of 3308	3728	rundll32.exe	81
PID 3728 wrote to memory of 3308	3728	rundll32.exe	81
PID 3728 wrote to memory of 3308	3728	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\api-ms-win-crt-filesystem-l1-1-0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3728
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\api-ms-win-crt-filesystem-l1-1-0.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3308
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3308 -s 600
    3⤵
    - Program crash
    PID:4664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3308 -ip 3308
1⤵
PID:2544

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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