90263f5e0ceee73af6ee6ca4dac8e6441c1f5c39607512a954e42887a5a0bb3a | Triage

Analysis

max time kernel
141s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11-05-2024 10:42

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General

Target

$PLUGINSDIR/UserInfo.dll
Size

4KB
MD5

9301577ff4d229347fe33259b43ef3b2
SHA1

5e39eb4f99920005a4b2303c8089d77f589c133d
SHA256

090c4bc8dc534e97b3877bd5115eb58b3e181495f29f231479f540bab5c01edc
SHA512

77dc7a1dedaeb1fb2ccefaba0a526b8d40ea64b9b37af53c056b9428159b67d552e5e3861cbffc2149ec646fdfe9ce94f4fdca51703f79c93e5f45c085e52c79

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4924 3684 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3080 wrote to memory of 3684	3080	rundll32.exe	rundll32.exe
PID 3080 wrote to memory of 3684	3080	rundll32.exe	rundll32.exe
PID 3080 wrote to memory of 3684	3080	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UserInfo.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3080

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UserInfo.dll,#1
2⤵
PID:3684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 612
3⤵
- Program crash
PID:4924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3684 -ip 3684
1⤵
PID:2376

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=3872 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8
1⤵
PID:804

Network

MITRE ATT&CK Matrix

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