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General

  • Target

    sultan cracked.exe

  • Size

    2.0MB

  • Sample

    250325-medjqavsgv

  • MD5

    000142d2c4961a9715157529ee679f27

  • SHA1

    e12ef916e551260a295cad737602c897781cc656

  • SHA256

    dbe3ee56b5cc22b5309005a8624b7cc24f5f7260e9bc38d8d223875f2fb81ba4

  • SHA512

    b76fbacdc4bc8172c948d2d68b2506e4c69b43d4462765dbdab37cbc773c081132b555ed072e39e5a5666f734d62374512d9ae4a0660bc90c8e7db0218bba0dc

  • SSDEEP

    24576:Vof3ZI06UZjoiAuB2Tu6kbRTYnnk2FbMNyBo4kx929bL3Hnx1I88:a/Zsxu0zq5QnJB+kn3HnxW

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1335254124253413517/uwBpTlieTdiOYJaHRQIeu3mJguPts6lG5cFLgccyNKTxKFm8dcpNOpkj0n1uwUr2-9OZ

Targets

    • Target

      sultan cracked.exe

    • Size

      2.0MB

    • MD5

      000142d2c4961a9715157529ee679f27

    • SHA1

      e12ef916e551260a295cad737602c897781cc656

    • SHA256

      dbe3ee56b5cc22b5309005a8624b7cc24f5f7260e9bc38d8d223875f2fb81ba4

    • SHA512

      b76fbacdc4bc8172c948d2d68b2506e4c69b43d4462765dbdab37cbc773c081132b555ed072e39e5a5666f734d62374512d9ae4a0660bc90c8e7db0218bba0dc

    • SSDEEP

      24576:Vof3ZI06UZjoiAuB2Tu6kbRTYnnk2FbMNyBo4kx929bL3Hnx1I88:a/Zsxu0zq5QnJB+kn3HnxW

    • Detect Umbral payload

    • Umbral

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

    • Umbral family

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • 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.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks

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