3be37af297b190efb8db29422fb9f74e329db481d55065731a669834daa8a449 | Triage

Analysis

max time kernel
139s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
21-05-2024 15:19

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General

Target

$PLUGINSDIR/System.dll
Size

11KB
MD5

301a9c8739ed3ed955a1bdc472d26f32
SHA1

a830ab9ae6e8d046b7ab2611bea7a0a681f29a43
SHA256

6ec9fde89f067b1807325b05089c3ae4822ce7640d78e6f32dbe52f582de1d92
SHA512

41d88489ecb5ec64191493a1ed2ed7095678955d9fa72cccea2ae76dd794e62e7b5bd3aa2c313fb4bdf41c2f89f29e4cafe43d564ecad80fce1bf0a240b1e094
SSDEEP

192:hCPej3uzvJwqJMQKN4GbeWZksMI4ETWcEbcBZ8ep2Kra7yAG:hCQ2HgN4GbeWmbI4Eybogia7yA

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1456 1168 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4340 wrote to memory of 1168	4340	rundll32.exe	rundll32.exe
PID 4340 wrote to memory of 1168	4340	rundll32.exe	rundll32.exe
PID 4340 wrote to memory of 1168	4340	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4340

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
2⤵
PID:1168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1168 -s 612
3⤵
- Program crash
PID:1456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1168 -ip 1168
1⤵
PID:2876

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 --field-trial-handle=4124,i,6166776566165096562,4582328833313060853,262144 --variations-seed-version --mojo-platform-channel-handle=4172 /prefetch:8
1⤵
PID:1820

Network

MITRE ATT&CK Matrix

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