Analysis

  • max time kernel
    35s
  • max time network
    39s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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#.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of FindShellTrayWindow 42 IoCs
  • Suspicious use of SendNotifyMessage 42 IoCs
  • Suspicious use of WriteProcessMemory 2 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:1016
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3536
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2116

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1016-0-0x00000186291E0000-0x0000018629220000-memory.dmp

    Filesize

    256KB

  • memory/1016-1-0x00007FF97B280000-0x00007FF97BD41000-memory.dmp

    Filesize

    10.8MB

  • memory/1016-2-0x000001862B0B0000-0x000001862B0C0000-memory.dmp

    Filesize

    64KB

  • memory/1016-4-0x00007FF97B280000-0x00007FF97BD41000-memory.dmp

    Filesize

    10.8MB

  • memory/2116-7-0x00000178FA9A0000-0x00000178FA9A1000-memory.dmp

    Filesize

    4KB

  • memory/2116-6-0x00000178FA9A0000-0x00000178FA9A1000-memory.dmp

    Filesize

    4KB

  • memory/2116-5-0x00000178FA9A0000-0x00000178FA9A1000-memory.dmp

    Filesize

    4KB

  • memory/2116-11-0x00000178FA9A0000-0x00000178FA9A1000-memory.dmp

    Filesize

    4KB

  • memory/2116-12-0x00000178FA9A0000-0x00000178FA9A1000-memory.dmp

    Filesize

    4KB

  • memory/2116-13-0x00000178FA9A0000-0x00000178FA9A1000-memory.dmp

    Filesize

    4KB

  • memory/2116-14-0x00000178FA9A0000-0x00000178FA9A1000-memory.dmp

    Filesize

    4KB

  • memory/2116-15-0x00000178FA9A0000-0x00000178FA9A1000-memory.dmp

    Filesize

    4KB

  • memory/2116-16-0x00000178FA9A0000-0x00000178FA9A1000-memory.dmp

    Filesize

    4KB

  • memory/2116-17-0x00000178FA9A0000-0x00000178FA9A1000-memory.dmp

    Filesize

    4KB