Overview

overview

10

Static

static

3

33a3e17650...8b.exe

windows7-x64

10

33a3e17650...8b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    33a3e17650f52aabd1bcc227efe52f51b822249db12e04cb4d467e371202278b

  • Size

    2.4MB

  • Sample

    240528-fnwy4afd31

  • MD5

    3f023af63a8d50a095354335b3892c5a

  • SHA1

    b232edbb64998f9b7e0534768158325bfff15895

  • SHA256

    33a3e17650f52aabd1bcc227efe52f51b822249db12e04cb4d467e371202278b

  • SHA512

    f420fa2b904038aecf149a87e24dd24dbb11de6c8193b917116d42b7b4e53c7ac302c54e6ab7f6cea30bb817f201caf1b34660a670c3ca25061be092c86b6193

  • SSDEEP

    49152:jxIRJF1HL+VdX68kUGJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dGtIuoITsdZ

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

      33a3e17650f52aabd1bcc227efe52f51b822249db12e04cb4d467e371202278b

    • Size

      2.4MB

    • MD5

      3f023af63a8d50a095354335b3892c5a

    • SHA1

      b232edbb64998f9b7e0534768158325bfff15895

    • SHA256

      33a3e17650f52aabd1bcc227efe52f51b822249db12e04cb4d467e371202278b

    • SHA512

      f420fa2b904038aecf149a87e24dd24dbb11de6c8193b917116d42b7b4e53c7ac302c54e6ab7f6cea30bb817f201caf1b34660a670c3ca25061be092c86b6193

    • SSDEEP

      49152:jxIRJF1HL+VdX68kUGJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dGtIuoITsdZ

    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 Enterprise v15

Tasks