General

  • Target

    incognito.exe

  • Size

    229KB

  • Sample

    240531-vs799afa5z

  • MD5

    a2e2e39f0f37c2bad057abd0d26da126

  • SHA1

    644b65d488765656986b5f3607dac359e9955b27

  • SHA256

    e4310f76275772aa2a6d4aa393a18a07e1ddb91ef6f2018cba717ba3478af322

  • SHA512

    7be3fc42afae83211517c67cf9e1e87e463c5bffac89daac65f5b56353a29ab4a3a7573b6fa53c07357721ea980ce177c379dffe82967ba80ce8d0d298133e66

  • SSDEEP

    6144:9loZM+rIkd8g+EtXHkv/iD46oX8syVtGDTOMdRYYhb8e1mjEi:foZtL+EP86oX8syVtGDTOMdRY4K

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1246079811550449737/o71DDSNevAp62v1h0lX5Zdz9PmOLjy45ti4wb_k8a16Uo5LJrfGyhDhSt-kejGs8Ti0E

Targets

    • Target

      incognito.exe

    • Size

      229KB

    • MD5

      a2e2e39f0f37c2bad057abd0d26da126

    • SHA1

      644b65d488765656986b5f3607dac359e9955b27

    • SHA256

      e4310f76275772aa2a6d4aa393a18a07e1ddb91ef6f2018cba717ba3478af322

    • SHA512

      7be3fc42afae83211517c67cf9e1e87e463c5bffac89daac65f5b56353a29ab4a3a7573b6fa53c07357721ea980ce177c379dffe82967ba80ce8d0d298133e66

    • SSDEEP

      6144:9loZM+rIkd8g+EtXHkv/iD46oX8syVtGDTOMdRYYhb8e1mjEi:foZtL+EP86oX8syVtGDTOMdRY4K

    • 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.

    • Drops file in Drivers directory

    • Deletes itself

    • 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