745fb5cdb7785a916e2e2d28bffae4a3cad7e2e8e467c74c7dfb768c6900ef35 | Triage

Analysis

max time kernel
11s
max time network
114s
platform
windows10_x64
resource
win10v20210410
submitted
08-08-2021 19:10

Sharing

Report Analysis Logs

General

Target

vcruntime140.dll
Size

81KB
MD5

7587bf9cb4147022cd5681b015183046
SHA1

f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256

c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA512

0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1096 1000 WerFault.exe rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

WerFault.exe

pid	process
1096	WerFault.exe
1096	WerFault.exe
1096	WerFault.exe
1096	WerFault.exe
1096	WerFault.exe
1096	WerFault.exe
1096	WerFault.exe
1096	WerFault.exe
1096	WerFault.exe
1096	WerFault.exe
1096	WerFault.exe
1096	WerFault.exe
1096	WerFault.exe
1096	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 1096 WerFault.exe
Token: SeBackupPrivilege 1096 WerFault.exe
Token: SeDebugPrivilege 1096 WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4036 wrote to memory of 1000	4036	rundll32.exe	rundll32.exe
PID 4036 wrote to memory of 1000	4036	rundll32.exe	rundll32.exe
PID 4036 wrote to memory of 1000	4036	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\vcruntime140.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4036

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\vcruntime140.dll,#1
2⤵
PID:1000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1000 -s 616
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1096

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1000-114-0x0000000000000000-mapping.dmp

Download