Overview

overview

10

Static

static

3

b6b334165e...2a.exe

windows7-x64

10

b6b334165e...2a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b6b334165e7e8327766b33cdfcb9a0c48ea4872c1186732ecf048ca5bb80f62a

  • Size

    2.0MB

  • Sample

    240523-cn36maab3x

  • MD5

    6217796f6f79ddc7810bf8e4ca36f5f1

  • SHA1

    4bae5ef53e6812994051fa0aa68d799ceab9b237

  • SHA256

    b6b334165e7e8327766b33cdfcb9a0c48ea4872c1186732ecf048ca5bb80f62a

  • SHA512

    013204d6b46a4e810b39222c9d50a14ad831071d3decb2b4881f9bf89346916929a6fabf17854313019a3e0d3c17e4ec6171668d855ebbf80f6d8673cafed108

  • SSDEEP

    49152:7QzHt472DDJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtJtIuoITsdZ

Score
10/10
stealcvidardiscoveryspywarestealer

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      b6b334165e7e8327766b33cdfcb9a0c48ea4872c1186732ecf048ca5bb80f62a

    • Size

      2.0MB

    • MD5

      6217796f6f79ddc7810bf8e4ca36f5f1

    • SHA1

      4bae5ef53e6812994051fa0aa68d799ceab9b237

    • SHA256

      b6b334165e7e8327766b33cdfcb9a0c48ea4872c1186732ecf048ca5bb80f62a

    • SHA512

      013204d6b46a4e810b39222c9d50a14ad831071d3decb2b4881f9bf89346916929a6fabf17854313019a3e0d3c17e4ec6171668d855ebbf80f6d8673cafed108

    • SSDEEP

      49152:7QzHt472DDJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtJtIuoITsdZ

    Score
    10/10
    stealcvidardiscoveryspywarestealer

    • Detect Vidar Stealer

      stealer

    • Stealc

      Stealc is an infostealer written in C++.

      stealerstealc

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

      stealervidar

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks