15b2fa0131427a7fbffe42ce83f36357661772faa0381e6ab8ef21a81c6380aa | Triage

Analysis

max time kernel
139s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
23-06-2024 13:06

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General

Target

wlessfp1.dll
Size

70KB
MD5

5120c44f241a12a3d5a3e87856477c13
SHA1

cd8a6ef728c48e17d570c8dc582ec49e17104f6d
SHA256

fbd4b6011d3d1c2af22827ca548ba19669eef31173d496e75f064ef7a884431c
SHA512

67c0e718368e950d42f007d6a21c6f903b084d6514f777b86aab3111ffe3be995949674276081c0281139a0b39119b84630a0ac341d4ae78677ac8346f371ae1
SSDEEP

1536:nEqYKdOEuqRKXd9ZWbIOinToIfYeyOgtPko:EqnB89ZouTBf5yOgtPko

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4592 2268 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3376 wrote to memory of 2268	3376	rundll32.exe	rundll32.exe
PID 3376 wrote to memory of 2268	3376	rundll32.exe	rundll32.exe
PID 3376 wrote to memory of 2268	3376	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\wlessfp1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3376

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\wlessfp1.dll,#1
2⤵
PID:2268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 672
3⤵
- Program crash
PID:4592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2268 -ip 2268
1⤵
PID:1820

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 --field-trial-handle=4124,i,6870419347051655189,5491911050420577193,262144 --variations-seed-version --mojo-platform-channel-handle=4420 /prefetch:8
1⤵
PID:4728

Network

MITRE ATT&CK Matrix

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