5136a49a682ac8d7f1ce71b211de8688fce42ed57210af087a8e2dbc8a934062 | Triage

Analysis

max time kernel
122s
max time network
124s
platform
windows10_x64
resource
win10-en-20211104
submitted
10-11-2021 00:18

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General

Target

MSVCP140.dll
Size

439KB
MD5

5ff1fca37c466d6723ec67be93b51442
SHA1

34cc4e158092083b13d67d6d2bc9e57b798a303b
SHA256

5136a49a682ac8d7f1ce71b211de8688fce42ed57210af087a8e2dbc8a934062
SHA512

4802ef62630c521d83a1d333969593fb00c9b38f82b4d07f70fbd21f495fea9b3f67676064573d2c71c42bc6f701992989742213501b16087bb6110e337c7546

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

500 2268 WerFault.exe rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 500 WerFault.exe
Token: SeBackupPrivilege 500 WerFault.exe
Token: SeDebugPrivilege 500 WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 372 wrote to memory of 2268	372	rundll32.exe	rundll32.exe
PID 372 wrote to memory of 2268	372	rundll32.exe	rundll32.exe
PID 372 wrote to memory of 2268	372	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\MSVCP140.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:372

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\MSVCP140.dll,#1
2⤵
PID:2268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 620
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:500

Network

MITRE ATT&CK Matrix

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Downloads

memory/2268-118-0x0000000000000000-mapping.dmp

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