Analysis

  • max time kernel
    142s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-10-2023 15:27

General

  • Target

    NEAS.02ca3b79c12ed28ec6eb5410b20c5df0_JC.exe

  • Size

    293KB

  • MD5

    02ca3b79c12ed28ec6eb5410b20c5df0

  • SHA1

    3a97a86b041e37414072174d7b6707a0f52f2ff5

  • SHA256

    d8a3a182fcd2773594f2055d1f54c7e558510d6a0a372ff7f721d360425aef90

  • SHA512

    5fb4a458e2e30fdf86d8d0d73a88a38d757771bf5331c3cba83bf49ada625513d9bf8bd72131211eeb652d08cc206a79660a676036586650ceaa9629f02ef40f

  • SSDEEP

    6144:GloZM+rIkd8g+EtXHkv/iD44FuHhv0IHB2PxM4d90b8e1mXi:woZtL+EP84FuHhv0IHB2PxM4deJ

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.02ca3b79c12ed28ec6eb5410b20c5df0_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.02ca3b79c12ed28ec6eb5410b20c5df0_JC.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3100
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2384

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/3100-0-0x0000022FEFD20000-0x0000022FEFD70000-memory.dmp

    Filesize

    320KB

  • memory/3100-1-0x00007FFD59A00000-0x00007FFD5A4C1000-memory.dmp

    Filesize

    10.8MB

  • memory/3100-2-0x0000022FF25A0000-0x0000022FF25B0000-memory.dmp

    Filesize

    64KB

  • memory/3100-4-0x00007FFD59A00000-0x00007FFD5A4C1000-memory.dmp

    Filesize

    10.8MB