Overview

overview

10

Static

static

3

CREBTER 2018.exe

windows10-2004-x64

10

CREBTER 2018.exe

windows10-ltsc_2021-x64

10

CREBTER 2018.exe

windows11-21h2-x64

10

CREBTER 2018.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    CREBTER 2018.exe
  • Size 1022KB
  • Sample261024-vs5t5abs3s
  • SHA256 d14c5940b163dda50170276c84997033990e0797a2382be569dd706351d9376c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
umbraldiscoverystealer

Malware Config

Extracted

Family

  • umbral

Version

  • v1.3

C2

  • https://discord.com/api/webhooks/1537631553251704915/pYjuZXSVqFJF8UDGNGHbS13FUlJA2WvuLsGU39gflbIsE9iTkJ1qFg8UBZttARkB32aJ

Targets

    • Target
      CREBTER 2018.exe
    • Size 1022KB
    • SHA256 d14c5940b163dda50170276c84997033990e0797a2382be569dd706351d9376c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoveryumbralstealer

    • Detects Umbral payload

    • Family: Umbral

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

      stealerumbral

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Looks up external IP address via web service

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

      discovery
    behavioral1behavioral2behavioral3behavioral4

MITRE ATT&CK Enterprise v16

Tasks