560b03c4ba18e5a443f74a69727db0eabac6f455bb836757d620cc51615a92ea | Triage

Analysis

max time kernel
144s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13-03-2024 00:36

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General

Target

$PLUGINSDIR/nsExec.dll
Size

6KB
MD5

ec0504e6b8a11d5aad43b296beeb84b2
SHA1

91b5ce085130c8c7194d66b2439ec9e1c206497c
SHA256

5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962
SHA512

3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57
SSDEEP

96:YjHFiKaoggCtJzTlKXb0tbo68qD853Ns7GgmkNq3m+s:JbogRtJzTlNR8qD85uGgmkNr

Score

3^/10

Malware Config

Signatures

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

3352 696 WerFault.exe rundll32.exe
4200 696 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 4988 wrote to memory of 696	4988	rundll32.exe	rundll32.exe
PID 4988 wrote to memory of 696	4988	rundll32.exe	rundll32.exe
PID 4988 wrote to memory of 696	4988	rundll32.exe	rundll32.exe
PID 696 wrote to memory of 3352	696	rundll32.exe	WerFault.exe
PID 696 wrote to memory of 3352	696	rundll32.exe	WerFault.exe
PID 696 wrote to memory of 3352	696	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4988

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 696 -s 612
3⤵
- Program crash
PID:3352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 696 -s 612
3⤵
- Program crash
PID:4200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 212 -p 696 -ip 696
1⤵
PID:4712

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4136 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
1⤵
PID:2712

Network

MITRE ATT&CK Matrix

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