53516f0cb95a26e41a679b428ced9723970c41f1ffbef86a64d7ec0292c7c08c | Triage

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24-05-2024 16:54

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General

Target

$PLUGINSDIR/nsCBHTML5.dll
Size

57KB
MD5

fe3f848e2a306d586ab8f5433738d8db
SHA1

1f4f5c8af912f865032db58e476d7ae6dcf9877c
SHA256

2fbc82090682ef32b084092e9b65534086ad398626aa84eae68b04758bb1309a
SHA512

4340ccce786298bd00acd9b25898632a4cf401de81ac9e8f17dc372998d4e83d0201babd9d266ba9a1857ccc2685102d118d47f3ad2d82142472e6e137a0ff5e
SSDEEP

768:YQY2zS952oBE3Ki+b+2RyxwyL1Aws5yMktpQ69ZT4X+A3Lu:NYvaoeKi+izwyL/yyMktpQfX+gq

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2340 2380 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2712 wrote to memory of 2380	2712	rundll32.exe	rundll32.exe
PID 2712 wrote to memory of 2380	2712	rundll32.exe	rundll32.exe
PID 2712 wrote to memory of 2380	2712	rundll32.exe	rundll32.exe
PID 2712 wrote to memory of 2380	2712	rundll32.exe	rundll32.exe
PID 2712 wrote to memory of 2380	2712	rundll32.exe	rundll32.exe
PID 2712 wrote to memory of 2380	2712	rundll32.exe	rundll32.exe
PID 2712 wrote to memory of 2380	2712	rundll32.exe	rundll32.exe
PID 2380 wrote to memory of 2340	2380	rundll32.exe	WerFault.exe
PID 2380 wrote to memory of 2340	2380	rundll32.exe	WerFault.exe
PID 2380 wrote to memory of 2340	2380	rundll32.exe	WerFault.exe
PID 2380 wrote to memory of 2340	2380	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsCBHTML5.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2712

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsCBHTML5.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:2380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 232
3⤵
- Program crash
PID:2340

MITRE ATT&CK Matrix

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