General

  • Target

    SecuriteInfo.com.Variant.Bulz.440290.18036.1686

  • Size

    245KB

  • Sample

    210420-krgar9s4ts

  • MD5

    a4326b69873c799207e4c9d30c2ed3ac

  • SHA1

    ee9d604c54a4450a6bfa071a2f23aaae5114e680

  • SHA256

    0299ed3db28516997c3a162def5ee464a25485241b4eb8cf2a0d3f21fd498f72

  • SHA512

    f26a406e6b7de5e93c70024fb6642140598eebba38ebc79a3f81219a68a29dbec06f67b716faffc67be0a0f6c3378ca9218f9edbd8e74374d2e0e8ef096d6330

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    nobettwo.xyz
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    O^1)7]oEv=*a

Targets

    • Target

      SecuriteInfo.com.Variant.Bulz.440290.18036.1686

    • Size

      245KB

    • MD5

      a4326b69873c799207e4c9d30c2ed3ac

    • SHA1

      ee9d604c54a4450a6bfa071a2f23aaae5114e680

    • SHA256

      0299ed3db28516997c3a162def5ee464a25485241b4eb8cf2a0d3f21fd498f72

    • SHA512

      f26a406e6b7de5e93c70024fb6642140598eebba38ebc79a3f81219a68a29dbec06f67b716faffc67be0a0f6c3378ca9218f9edbd8e74374d2e0e8ef096d6330

    • Modifies WinLogon for persistence

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Snake Keylogger Payload

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

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

    • Reads user/profile data of web browsers

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Winlogon Helper DLL

1
T1004

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Tasks