aac32ed16f262918a685abdac1d191411a4c325c46c8bfcd434014adbf7ba36d

Analysis

max time kernel
146s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
20-08-2024 17:28

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General

Target

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

18KB
MD5

1776a2b85378b27825cf5e5a3a132d9a
SHA1

626f0e7f2f18f31ec304fe7a7af1a87cbbebb1df
SHA256

675b1b82dd485cc8c8a099272db9241d0d2a7f45424901f35231b79186ec47ee
SHA512

541a5dd997fc5fec31c17b4f95f03c3a52e106d6fb590cb46bdf5adad23ed4a895853768229f3fbb9049f614d9bae031e6c43cec43fb38c89f13163721bb8348
SSDEEP

384:XY3eBW1hWqvm0GftpBjtzsxm3SKulndaYhp6s:zQzViATv

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2704	5844	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

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 2908 wrote to memory of 5844	2908	rundll32.exe	82
PID 2908 wrote to memory of 5844	2908	rundll32.exe	82
PID 2908 wrote to memory of 5844	2908	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ExSoftware\Debug\api-ms-win-crt-heap-l1-1-0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ExSoftware\Debug\api-ms-win-crt-heap-l1-1-0.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5844
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5844 -s 448
    3⤵
    - Program crash
    PID:2704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5844 -ip 5844
1⤵
PID:5568

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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