e9d67a2e057ca30600aa7c21e7026844238265755fc03f78a4fb78f7d0e48883

Analysis

max time kernel
138s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16-08-2024 21:08

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General

Target

$SYSDIR/MSVCRT.dll
Size

288KB
MD5

055b02d711cdedb8c5997274c4e99cb8
SHA1

5c816eeb6e4d5f1c11e9f56c992ee7d452e7c0f9
SHA256

d7cea69a98579d928e534070f5293e80ed7df38baf611b20717ef55aa1344a18
SHA512

4774431fe768e424f46c833236a41d68f05d98ed14353b04428a5d190dbe213bb56087a5e5cca5cd98598f2c1611fddfed3a7a79bbd362bc02e586cc367907c0
SSDEEP

6144:yk54RkH8RKDou3LlG/3Roe0Ro4zJsdF9gjFMgiFjNr7mcl2oZhogKLOmJxZR92l3:R4RtIR3BG/3We0RVJsdFFUzchogKLOmc

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
224	4376	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

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 2352 wrote to memory of 4376	2352	rundll32.exe	85
PID 2352 wrote to memory of 4376	2352	rundll32.exe	85
PID 2352 wrote to memory of 4376	2352	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\MSVCRT.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\MSVCRT.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4376
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4376 -s 600
    3⤵
    - Program crash
    PID:224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4376 -ip 4376
1⤵
PID:2272

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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