745fb5cdb7785a916e2e2d28bffae4a3cad7e2e8e467c74c7dfb768c6900ef35 | Triage

Analysis

max time kernel
13s
max time network
74s
platform
windows10_x64
resource
win10v20210408
submitted
08-08-2021 19:10

Sharing

Report Analysis Logs

General

Target

nss3.dll
Size

1.2MB
MD5

bfac4e3c5908856ba17d41edcd455a51
SHA1

8eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256

e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA512

2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1828 3944 WerFault.exe rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

WerFault.exe

pid	process
1828	WerFault.exe
1828	WerFault.exe
1828	WerFault.exe
1828	WerFault.exe
1828	WerFault.exe
1828	WerFault.exe
1828	WerFault.exe
1828	WerFault.exe
1828	WerFault.exe
1828	WerFault.exe
1828	WerFault.exe
1828	WerFault.exe
1828	WerFault.exe
1828	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 1828 WerFault.exe
Token: SeBackupPrivilege 1828 WerFault.exe
Token: SeDebugPrivilege 1828 WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 656 wrote to memory of 3944	656	rundll32.exe	rundll32.exe
PID 656 wrote to memory of 3944	656	rundll32.exe	rundll32.exe
PID 656 wrote to memory of 3944	656	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\nss3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:656

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\nss3.dll,#1
2⤵
PID:3944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 668
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1828

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3944-114-0x0000000000000000-mapping.dmp

Download