1b81996617a4f1280af2c7e874946d4d3cd2799c03efaaad5580c2c64330d2d9 | Triage

Analysis

max time kernel
46s
max time network
50s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
23-09-2022 06:18

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General

Target

r77-x64.dll
Size

1.3MB
MD5

fd8d65658e15c0e0bb2f193949662d0e
SHA1

7c5b6c722acf3f08fc67ff59bf8a248037638480
SHA256

1b81996617a4f1280af2c7e874946d4d3cd2799c03efaaad5580c2c64330d2d9
SHA512

aede89381243d23e6995a8cbd292acd1ad7b126bdd93260abd10754d691ec78023dcb195acc72bb8b0725d5cec1b2b476936e9f07aa131188a12d70b4658660c
SSDEEP

24576:sh5gnl+uwpnAmmZC4EN5oAXRUcCHidsIv8Gi3lBN51vm6J1sYPJDUSRQzGWnQ9ZC:sh5g1BRi5oPTGMfit

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

852 1600 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1600 wrote to memory of 852	1600	rundll32.exe	WerFault.exe
PID 1600 wrote to memory of 852	1600	rundll32.exe	WerFault.exe
PID 1600 wrote to memory of 852	1600	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\r77-x64.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1600

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1600 -s 140
2⤵
- Program crash
PID:852

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/852-56-0x0000000000000000-mapping.dmp

Download
memory/1600-55-0x0000000036DA0000-0x0000000036DB0000-memory.dmp

Filesize
64KB

Download
memory/1600-54-0x000007FEBD000000-0x000007FEBD010000-memory.dmp

Filesize
64KB

Download
memory/1600-57-0x000007FEF6020000-0x000007FEF61EA000-memory.dmp

Filesize
1.8MB

Download
memory/1600-58-0x000007FEF5CE0000-0x000007FEF5EAA000-memory.dmp

Filesize
1.8MB

Download