Analysis

  • max time kernel
    122s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09-03-2024 14:22

General

  • Target

    Hyper Optimizer.exe

  • Size

    230KB

  • MD5

    7e7635676ade59a517be0da76f172ecc

  • SHA1

    d7e457621dcc9d5b463969566f3c76cd638e0f5c

  • SHA256

    57d5d2edb1fa963a49a70a7f7505d07c2fcf9490f9d7067ed1cb36eeb15c278b

  • SHA512

    af7fec5e6c53279e415a2269419e0844a28f489402ec6a9e82e85c48c2ee2dd31bea3caf70eba4c2090b33b31a27cf2efb52709cfe24a522c6c32ab463639f6d

  • SSDEEP

    6144:lloZM0rIkd8g+EtXHkv/iD4EM0p/MS1NmLzus9x4H7b8e1mMi:noZDL+EP8D0p/MS1NmLzus9x4fa

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\Hyper Optimizer.exe
    "C:\Users\Admin\AppData\Local\Temp\Hyper Optimizer.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1680
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2568

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1680-0-0x0000000000A10000-0x0000000000A50000-memory.dmp

    Filesize

    256KB

  • memory/1680-1-0x000007FEF52C0000-0x000007FEF5CAC000-memory.dmp

    Filesize

    9.9MB

  • memory/1680-2-0x0000000002040000-0x00000000020C0000-memory.dmp

    Filesize

    512KB

  • memory/1680-3-0x000007FEF52C0000-0x000007FEF5CAC000-memory.dmp

    Filesize

    9.9MB