38e6f4d8f53e8a38950594d9588cb00218bf46113c51b5241771181a521b9c75

Analysis

max time kernel
65s
max time network
132s
platform
windows10_x64
resource
win10v20201028
submitted
11-03-2021 17:26

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General

Target

updatewin.exe
Size

208KB
MD5

9010fa92cc83afe00fab38703e6ffa77
SHA1

4d603ec27d02d84a65d1555c2df0896d7675fafc
SHA256

38e6f4d8f53e8a38950594d9588cb00218bf46113c51b5241771181a521b9c75
SHA512

a39ea249da189fedd5f8d1c13d03693626c70ba08c69c4ec76396d3475c5480e98c8dba1da0b74089252d8d781fc050e4eed9346b648ccbb42e22cf6d15399e8

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

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

pid	Process
60	timeout.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 2920	1048	updatewin.exe	76
PID 1048 wrote to memory of 2920	1048	updatewin.exe	76
PID 1048 wrote to memory of 2920	1048	updatewin.exe	76
PID 2920 wrote to memory of 60	2920	cmd.exe	78
PID 2920 wrote to memory of 60	2920	cmd.exe	78
PID 2920 wrote to memory of 60	2920	cmd.exe	78

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

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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