Analysis

  • max time kernel
    316s
  • max time network
    1590s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    16-10-2024 14:41

General

  • Target

    RC7.exe

  • Size

    232KB

  • MD5

    d59f28e91f0758221b66e6f5c4cc793c

  • SHA1

    5cf89331e57cabba6b6844ee0d1ee3bb5916c7a2

  • SHA256

    839498d96202c30898aefe9567bf03a5612f437829886b3d6db1839c9d058466

  • SHA512

    ee27b92796473a021a104581d950438a367a37dd7214b73ef70af59cccfe64e6460a38fabc7a2e9f1a77194e99902e280823701499f8212a7df64151f10bf642

  • SSDEEP

    6144:RloZM+rIkd8g+EtXHkv/iD4o3l8rRiK1ewBzOuraAb8e1mw4i:joZtL+EP8o3l8rRiK1ewBzOur/hB

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\RC7.exe
    "C:\Users\Admin\AppData\Local\Temp\RC7.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3640
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1252
  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\Desktop\SyncShow.vbe"
    1⤵
      PID:540

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3640-0-0x00007FFB54CE3000-0x00007FFB54CE4000-memory.dmp

      Filesize

      4KB

    • memory/3640-1-0x000001F4BFE60000-0x000001F4BFEA0000-memory.dmp

      Filesize

      256KB

    • memory/3640-2-0x00007FFB54CE0000-0x00007FFB556CC000-memory.dmp

      Filesize

      9.9MB

    • memory/3640-4-0x00007FFB54CE0000-0x00007FFB556CC000-memory.dmp

      Filesize

      9.9MB