Analysis

  • max time kernel
    137s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-11-2023 00:49

General

  • Target

    NEAS.e8dc6836af5afe2632a7ae54ad535110_JC.exe

  • Size

    227KB

  • MD5

    e8dc6836af5afe2632a7ae54ad535110

  • SHA1

    c10649f60077387b0712e590ec913354fa73258e

  • SHA256

    596381f20e3acd0ace416366333b3614d003d8119a77769e183cab2e9990fd53

  • SHA512

    40d9ea7bde3f6bc763ecb385be25adc2a297208562cd77bf862fb54cd97e5e061c927c989a0f0e8795182fcfb1a83240ed22fc1988e2d01ee1dea66fc3235891

  • SSDEEP

    6144:MloZMNrIkd8g+EtXHkv/iD4FdV+mkrHMc9YW3X2lAb8e1mMbi:KoZ+L+EP8FdV+mkrHMc9YW3X2ef2

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\NEAS.e8dc6836af5afe2632a7ae54ad535110_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.e8dc6836af5afe2632a7ae54ad535110_JC.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3216
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3808

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/3216-0-0x000001CA02690000-0x000001CA026D0000-memory.dmp

    Filesize

    256KB

  • memory/3216-1-0x00007FFFA35B0000-0x00007FFFA4071000-memory.dmp

    Filesize

    10.8MB

  • memory/3216-2-0x000001CA1CCD0000-0x000001CA1CCE0000-memory.dmp

    Filesize

    64KB

  • memory/3216-4-0x00007FFFA35B0000-0x00007FFFA4071000-memory.dmp

    Filesize

    10.8MB