Overview

overview

10

Static

static

3

1aa478b5c7...c4.exe

windows7-x64

10

1aa478b5c7...c4.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1aa478b5c7799c293c78bf595e8dcd5f52e2f6262a62228cb5144e97d5f030c4

  • Size

    2.1MB

  • Sample

    240614-xy2e1awgll

  • MD5

    30917b251a053268cd24f6e01734c732

  • SHA1

    85ed42addd4d5114ab35dde8942dda28ab3e6952

  • SHA256

    1aa478b5c7799c293c78bf595e8dcd5f52e2f6262a62228cb5144e97d5f030c4

  • SHA512

    f7f0f5a0995a11bcd8042fe6cb19ec157ccb583c4578f94816338f301ebe3734da29eced7470d07a999e669b87f0e2339876a83890e69f9538d615ae8a61b7f0

  • SSDEEP

    24576:Ub4m+sws1qLVNMIlJl6DRKbAlcNRfCKpUfMxVVtes12FxwojKr98YGeGG9iO:UZXOjt6DuAwCKpUkxVVChjHZQs

Score
10/10
stealcvidardiscoveryspywarestealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/r8z0l

https://steamcommunity.com/profiles/76561199698764354
Attributes
  • user_agent

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

Targets

    • Target

      1aa478b5c7799c293c78bf595e8dcd5f52e2f6262a62228cb5144e97d5f030c4

    • Size

      2.1MB

    • MD5

      30917b251a053268cd24f6e01734c732

    • SHA1

      85ed42addd4d5114ab35dde8942dda28ab3e6952

    • SHA256

      1aa478b5c7799c293c78bf595e8dcd5f52e2f6262a62228cb5144e97d5f030c4

    • SHA512

      f7f0f5a0995a11bcd8042fe6cb19ec157ccb583c4578f94816338f301ebe3734da29eced7470d07a999e669b87f0e2339876a83890e69f9538d615ae8a61b7f0

    • SSDEEP

      24576:Ub4m+sws1qLVNMIlJl6DRKbAlcNRfCKpUfMxVVtes12FxwojKr98YGeGG9iO:UZXOjt6DuAwCKpUkxVVChjHZQs

    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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

      spywarestealer

    • 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

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks