Analysis

  • max time kernel
    16s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20231025-en
  • resource tags

    arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2023 10:14

General

  • Target

    Zul Private.exe

  • Size

    230KB

  • MD5

    a47cffac2602038b4cfc070f8a05243a

  • SHA1

    4111453f445d10ef516e98a000cc84845658dabe

  • SHA256

    29456c78a229429c66b4ce8997c9bb6593ad9b4e8928e094eb25caf4a7ee0e40

  • SHA512

    e390d7c96e2b5b2cad52b80c276787cb37d7ca3a171868037c1f1ef9e58177baa9e07f8866e0a95560ee9e0af0a38ba218f9feeaf1f19d77915f9e5c08d4070d

  • SSDEEP

    6144:1loZM+rIkd8g+EtXHkv/iD4tT1FzQEbqCzFQMpxbztjFK8e1mOvi:XoZtL+EP8tT1FzQEbqCzFQMpVpjy0

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 41 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Zul Private.exe
    "C:\Users\Admin\AppData\Local\Temp\Zul Private.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2784

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1764-0-0x0000000000FD0000-0x0000000001010000-memory.dmp

    Filesize

    256KB

  • memory/1764-1-0x000007FEF5820000-0x000007FEF620C000-memory.dmp

    Filesize

    9.9MB

  • memory/1764-2-0x000000001B030000-0x000000001B0B0000-memory.dmp

    Filesize

    512KB

  • memory/1764-3-0x000007FEF5820000-0x000007FEF620C000-memory.dmp

    Filesize

    9.9MB