General

  • Target

    PrimeN1troGenerator.exe

  • Size

    214KB

  • Sample

    240520-cvefvafh5w

  • MD5

    8bd85b95fd1ac8e340c767285a07fdb9

  • SHA1

    a7078c6bc3bce43e55d276f5a3af06b6be5e239d

  • SHA256

    52a259a701bb38e3770cbdd87af27124ea6f1821bcea69dab859391e8ab8e84c

  • SHA512

    ef778acec8a979a4a17f10ffdbb0c31f5b4dd8e2293ffa3f99624cbc21b892577aaaf9917603b0e9be0818e930ff6b4f51a5e67aab576e6ee67f281fa91be66e

  • SSDEEP

    3072:GlP/chtWkOIGSuvD6vdnsUSaC7liDDxIfbw44lllllj02cgSl8eN7b0JX8OZnXT8:+cyHIGodsUS7eDajb8eNH5OZD

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1239128191910543402/7bs3_j5w3Xe1_L8A7FX6pzZ8qsyJc_6VqvKD2KyMK_IdQSU6u78PNAgemXSvcI25pwY2

Targets

    • Target

      PrimeN1troGenerator.exe

    • Size

      214KB

    • MD5

      8bd85b95fd1ac8e340c767285a07fdb9

    • SHA1

      a7078c6bc3bce43e55d276f5a3af06b6be5e239d

    • SHA256

      52a259a701bb38e3770cbdd87af27124ea6f1821bcea69dab859391e8ab8e84c

    • SHA512

      ef778acec8a979a4a17f10ffdbb0c31f5b4dd8e2293ffa3f99624cbc21b892577aaaf9917603b0e9be0818e930ff6b4f51a5e67aab576e6ee67f281fa91be66e

    • SSDEEP

      3072:GlP/chtWkOIGSuvD6vdnsUSaC7liDDxIfbw44lllllj02cgSl8eN7b0JX8OZnXT8:+cyHIGodsUS7eDajb8eNH5OZD

    • Detect Umbral payload

    • Umbral

      Umbral stealer is an opensource moduler stealer written in C#.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Reads user/profile data of web browsers

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

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

MITRE ATT&CK Enterprise v15

Tasks