510aa84775e90c5a93c79d9e7439716b56300e23c4aa8e5fbd22564418bb71db | Triage

Analysis

max time kernel
110s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
resource tags

arch:x64arch:x86image:win10v2004-20220414-enlocale:en-usos:windows10-2004-x64system
submitted
18-07-2022 18:19

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General

Target

yymshdsdsdrj_gr/udc.dll
Size

354KB
MD5

fca87fc8bdd5ca97edcfed1dfc45e2b5
SHA1

728cf2f8f4290fabfa33c124119d36fe7720e945
SHA256

d2623391a3df7085c1268a7ce2f9554b86bdae3b1387c37f080b40c8f979efd9
SHA512

97dd6457866b5b76051378454013abab6dc467b8afccd7735432c4df412e7b1df524611d1db1b5480b636563d1ea8f02a9fb7121392fb20838d92b87cbee37fb

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3144 3844 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4392 wrote to memory of 3844	4392	rundll32.exe	rundll32.exe
PID 4392 wrote to memory of 3844	4392	rundll32.exe	rundll32.exe
PID 4392 wrote to memory of 3844	4392	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\yymshdsdsdrj_gr\udc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4392

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\yymshdsdsdrj_gr\udc.dll,#1
2⤵
PID:3844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3844 -s 608
3⤵
- Program crash
PID:3144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3844 -ip 3844
1⤵
PID:4668

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3844-130-0x0000000000000000-mapping.dmp

Download
memory/3844-131-0x0000000075730000-0x00000000757E8000-memory.dmp

Filesize
736KB

Download
memory/3844-134-0x0000000075730000-0x00000000757E8000-memory.dmp

Filesize
736KB

Download