38e6f4d8f53e8a38950594d9588cb00218bf46113c51b5241771181a521b9c75

Analysis

max time kernel
62s
max time network
124s
platform
windows10_x64
resource
win10v20201028
submitted
13/02/2021, 11:29

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General

Target
updatewin.exe
Size 208KB
Sample210213-yvvymlkn4n
SHA256 38e6f4d8f53e8a38950594d9588cb00218bf46113c51b5241771181a521b9c75
MD5 9010fa92cc83afe00fab38703e6ffa77
SHA1 4d603ec27d02d84a65d1555c2df0896d7675fafc
SHA512 a39ea249da189fedd5f8d1c13d03693626c70ba08c69c4ec76396d3475c5480e98c8dba1da0b74089252d8d781fc050e4eed9346b648ccbb42e22cf6d15399e8
MD5 SHA1 SHA512

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

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
776	timeout.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4684 wrote to memory of 4244	4684	updatewin.exe	75
PID 4684 wrote to memory of 4244	4684	updatewin.exe	75
PID 4684 wrote to memory of 4244	4684	updatewin.exe	75
PID 4244 wrote to memory of 776	4244	cmd.exe	77
PID 4244 wrote to memory of 776	4244	cmd.exe	77
PID 4244 wrote to memory of 776	4244	cmd.exe	77

C:\Users\Admin\AppData\Local\Temp\updatewin.exe
"C:\Users\Admin\AppData\Local\Temp\updatewin.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4684
- 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:4244
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 3
    3⤵
    - Delays execution with timeout.exe
    PID:776

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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