38e6f4d8f53e8a38950594d9588cb00218bf46113c51b5241771181a521b9c75

Analysis

Target

updatewin.exe
Size

208KB
MD5

9010fa92cc83afe00fab38703e6ffa77
SHA1

4d603ec27d02d84a65d1555c2df0896d7675fafc
SHA256

38e6f4d8f53e8a38950594d9588cb00218bf46113c51b5241771181a521b9c75
SHA512

a39ea249da189fedd5f8d1c13d03693626c70ba08c69c4ec76396d3475c5480e98c8dba1da0b74089252d8d781fc050e4eed9346b648ccbb42e22cf6d15399e8

Score

7^/10

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

60 timeout.exe

pid	process
60	timeout.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

updatewin.execmd.exe

description	pid	process	target process
PID 1048 wrote to memory of 2920	1048	updatewin.exe	cmd.exe
PID 1048 wrote to memory of 2920	1048	updatewin.exe	cmd.exe
PID 1048 wrote to memory of 2920	1048	updatewin.exe	cmd.exe
PID 2920 wrote to memory of 60	2920	cmd.exe	timeout.exe
PID 2920 wrote to memory of 60	2920	cmd.exe	timeout.exe
PID 2920 wrote to memory of 60	2920	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\updatewin.exe
"C:\Users\Admin\AppData\Local\Temp\updatewin.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1048

C:\Windows\SysWOW64\cmd.exe
/c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\updatewin.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:2920

C:\Windows\SysWOW64\timeout.exe
timeout /t 3
3⤵
- Delays execution with timeout.exe
PID:60

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

Discovery

Query Registry

Lateral Movement

Collection

Data from Local System

Exfiltration

Command and Control

Impact