Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-11-2024 03:00

General

  • Target

    octoware in.exe

  • Size

    230KB

  • MD5

    f5aff3ee2085e59f5549090cb00035e9

  • SHA1

    1d07fb7c1b310450774fb2b3c5b6506421c4b360

  • SHA256

    421b6a23785737dedb2b5f638e84445b2a9e9fa4f52fb1bcfdbfb3b254828e3a

  • SHA512

    05a4072f351eeae93b649c2bb1209aa295cc21a4664a3aed4cb1473351fd0777807f09940f781ccb02cf23060264102b9d893de69822246cb7b34bd7a47bcbc4

  • SSDEEP

    6144:9loZM0rIkd8g+EtXHkv/iD49YaHdmOhjU9va6vDbEtjXk8e1mTLi:foZDL+EP89YaHdmOhjU9va6vvUjKF

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Umbral family
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\octoware in.exe
    "C:\Users\Admin\AppData\Local\Temp\octoware in.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2160
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2880

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2160-0-0x000007FEF4D23000-0x000007FEF4D24000-memory.dmp

    Filesize

    4KB

  • memory/2160-1-0x0000000000ED0000-0x0000000000F10000-memory.dmp

    Filesize

    256KB

  • memory/2160-2-0x000007FEF4D20000-0x000007FEF570C000-memory.dmp

    Filesize

    9.9MB

  • memory/2160-3-0x000007FEF4D20000-0x000007FEF570C000-memory.dmp

    Filesize

    9.9MB