Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Sharing

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General

  • Target

    756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0

  • Size

    1.9MB

  • Sample

    240527-rlcyzsgd42

  • MD5

    81ad6e94c93db5d152ce8d8b024d5dfb

  • SHA1

    b0351a0960d5989e283562c81447a0705c420bb0

  • SHA256

    756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0

  • SHA512

    fb69a12261acc9d5beaf65fb2614aeb5649576f129db129d739faf7502a7dfb88c86efeb4b1a7b81dde6c17caef8f54148a8fa0af7ead15f6bf1f5a2cdf59592

  • SSDEEP

    49152:CdKfTn6veJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnttIuoITsdZ

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

      756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0

    • Size

      1.9MB

    • MD5

      81ad6e94c93db5d152ce8d8b024d5dfb

    • SHA1

      b0351a0960d5989e283562c81447a0705c420bb0

    • SHA256

      756977d719d27e93520a5de1616e76c08dab5b1c1fd3b9fd0d6cdab479bd78e0

    • SHA512

      fb69a12261acc9d5beaf65fb2614aeb5649576f129db129d739faf7502a7dfb88c86efeb4b1a7b81dde6c17caef8f54148a8fa0af7ead15f6bf1f5a2cdf59592

    • SSDEEP

      49152:CdKfTn6veJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnttIuoITsdZ

    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

    • 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

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