Overview

overview

10

Static

static

10

Umbral.exe

windows10-2004-x64

10

Umbral.exe

windows10-ltsc 2021-x64

10

Umbral.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    865s
  • max time network
    874s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250218-en
  • resource tags

    arch:x64arch:x86image:win11-20250218-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22-02-2025 01:13

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General

  • Target

    Umbral.exe

  • Size

    230KB

  • MD5

    2509db9a461b6619dd1e980090e1c8c0

  • SHA1

    08c538c781995dc687f454569cea1ed9c3005aed

  • SHA256

    246922e545aaf7556adf2f7d59771ac73423f7e334c06cac93f5dea27a24f3a2

  • SHA512

    b5b270221fc52b7803a915439482fed97a1c0faa8a7005f10a4d1bdb6e8b8e6726592f18adec8335914848711d02183d88be0a98693b84339c3c7968be07d201

  • SSDEEP

    6144:1loZM+rIkd8g+EtXHkv/iD4xQYsJ8e1mYi:XoZtL+EP8xco

Score
10/10
umbralstealer

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

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

    stealerumbral
  • Umbral family
    umbral
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Umbral.exe
    "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:5052
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --string-annotations --always-read-main-dll --field-trial-handle=2480,i,12331736354284649584,1031380232325094842,262144 --variations-seed-version --mojo-platform-channel-handle=5100 /prefetch:14
    1⤵
      PID:3076
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --string-annotations --always-read-main-dll --field-trial-handle=3832,i,12331736354284649584,1031380232325094842,262144 --variations-seed-version --mojo-platform-channel-handle=4048 /prefetch:14
      1⤵
        PID:780
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --string-annotations --always-read-main-dll --field-trial-handle=3876,i,12331736354284649584,1031380232325094842,262144 --variations-seed-version --mojo-platform-channel-handle=5256 /prefetch:14
        1⤵
          PID:2668

        Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        • memory/5052-1-0x00000244FA840000-0x00000244FA880000-memory.dmp

          Filesize

          256KB

          Download

        • memory/5052-0-0x00007FFC669C3000-0x00007FFC669C5000-memory.dmp

          Filesize

          8KB

          Download

        • memory/5052-2-0x00007FFC669C0000-0x00007FFC67482000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/5052-3-0x00007FFC669C0000-0x00007FFC67482000-memory.dmp

          Filesize

          10.8MB

          Download