Overview

overview

10

Static

static

3

a6aa41c414...29.exe

windows7-x64

3

a6aa41c414...29.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a6aa41c4146d958de74395c388ef2af7cc1b47c381c8d4661130d510143e7329.exe

  • Size

    435KB

  • Sample

    240617-bn4xgs1hlq

  • MD5

    9e49e965497860a4ea1e4065afad6304

  • SHA1

    aff9631611d09814d7acd75b3ee18b50ea074e2d

  • SHA256

    a6aa41c4146d958de74395c388ef2af7cc1b47c381c8d4661130d510143e7329

  • SHA512

    bdd24dee78518ae709e061ac6f7761f76e59c0013876b5076c2648e6f531f253e5d507dd2629352bd4dd8fad8bacbd4458576a6f451f87ab4db203f97605e06f

  • SSDEEP

    6144:0S1gnkIzWbaEBCS2Ra43A2khln30krfESFDhORgYzUQMnlw9NPNDL5NXPMPvnT2Y:0IgnkIzcRYkrfDXCgYwnlwD1fMPvyaH

Score
10/10
stealcvidardiscoveryspywarestealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/memve4erin

https://steamcommunity.com/profiles/76561199699680841
Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Targets

    • Target

      a6aa41c4146d958de74395c388ef2af7cc1b47c381c8d4661130d510143e7329.exe

    • Size

      435KB

    • MD5

      9e49e965497860a4ea1e4065afad6304

    • SHA1

      aff9631611d09814d7acd75b3ee18b50ea074e2d

    • SHA256

      a6aa41c4146d958de74395c388ef2af7cc1b47c381c8d4661130d510143e7329

    • SHA512

      bdd24dee78518ae709e061ac6f7761f76e59c0013876b5076c2648e6f531f253e5d507dd2629352bd4dd8fad8bacbd4458576a6f451f87ab4db203f97605e06f

    • SSDEEP

      6144:0S1gnkIzWbaEBCS2Ra43A2khln30krfESFDhORgYzUQMnlw9NPNDL5NXPMPvnT2Y:0IgnkIzcRYkrfDXCgYwnlwD1fMPvyaH

    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

    • Detect binaries embedding considerable number of MFA browser extension IDs.

    • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • Detects executables containing potential Windows Defender anti-emulation checks

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

      spywarestealer

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

      spywarestealer

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • 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

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

4
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

4
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks