Overview

overview

10

Static

static

3

1b6310d4b9...4b.exe

windows7-x64

10

1b6310d4b9...4b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b

  • Size

    2.0MB

  • Sample

    240527-dffwsseg66

  • MD5

    1b049fe8c40e08c046c049b57df3373d

  • SHA1

    af55dc8970036f67eddb8bc588ba6e0ebe9a6605

  • SHA256

    1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b

  • SHA512

    0336b2378f7bccf89c6d115820f6f8947a609b0aa7860615fe26cb4dac4bc7a8e553867b32b074000d28f0dee7ec80ff743f90b27480051e04a8a6651175869d

  • SSDEEP

    49152:s4K3x1vUGJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18GtIuoITsdZ

Score
10/10
stealcvidardiscoveryspywarestealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin
Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b

    • Size

      2.0MB

    • MD5

      1b049fe8c40e08c046c049b57df3373d

    • SHA1

      af55dc8970036f67eddb8bc588ba6e0ebe9a6605

    • SHA256

      1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b

    • SHA512

      0336b2378f7bccf89c6d115820f6f8947a609b0aa7860615fe26cb4dac4bc7a8e553867b32b074000d28f0dee7ec80ff743f90b27480051e04a8a6651175869d

    • SSDEEP

      49152:s4K3x1vUGJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18GtIuoITsdZ

    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