Overview

overview

10

Static

static

10

Grabber.exe

windows10-2004-x64

10

Grabber.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    Grabber.exe
  • Size 233KB
  • Sample260625-nv1jvsbv2p
  • SHA256 dfb3d8ba263039568d24773923cc650e879d55b3c866173785744b9fb668c818
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
umbraldefense_evasiondiscoveryspywarestealer

Malware Config

Targets

    • Target
      Grabber.exe
    • Size 233KB
    • SHA256 dfb3d8ba263039568d24773923cc650e879d55b3c866173785744b9fb668c818
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryumbralspywarestealer

    • Detects Umbral payload

    • Family: Umbral

      Umbral stealer is an open-source modular stealer written in C#.

      stealerumbral

    • Drops file in Drivers directory

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Looks up external IP address via web service

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks