Analysis

  • max time kernel
    16s
  • max time network
    17s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23-07-2024 21:06

General

  • Target

    y.exe

  • Size

    229KB

  • MD5

    e55c738dfd6a954e2639c1a6cf3cf33d

  • SHA1

    ec44eb7e74102001e534268513bbd84f37ac689d

  • SHA256

    65fe3aca61ba85663615daadb56fb3bc8e49db4348ae0df15309d22e7d406c68

  • SHA512

    7fd358cd8ac0f99906a0ddd1b7e27c0eebd7e783820036de6e447d9857992d3ed8a82c919a994d9ca159387dcf2f87e7c0c1ed3e6fa072909e85daa7cc2aa5ea

  • SSDEEP

    6144:9loZM+rIkd8g+EtXHkv/iD4NvdfL+8D/0BVA+Pv+h9UC6ly8e1m73i:foZtL+EP8tdfL+8D/0BVA+Pv+hmKb

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

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

  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\y.exe
    "C:\Users\Admin\AppData\Local\Temp\y.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4704
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3820

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/4704-0-0x00000201E9D00000-0x00000201E9D40000-memory.dmp

    Filesize

    256KB

  • memory/4704-1-0x00007FFB141D3000-0x00007FFB141D4000-memory.dmp

    Filesize

    4KB

  • memory/4704-2-0x00007FFB141D0000-0x00007FFB14BBC000-memory.dmp

    Filesize

    9.9MB

  • memory/4704-4-0x00007FFB141D0000-0x00007FFB14BBC000-memory.dmp

    Filesize

    9.9MB