Analysis

  • max time kernel
    16s
  • max time network
    3s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    09-09-2024 08:22

General

  • Target

    invoice_2318362983713_823931342io.pdf.exe

  • Size

    247KB

  • MD5

    ea039a854d20d7734c5add48f1a51c34

  • SHA1

    9615dca4c0e46b8a39de5428af7db060399230b2

  • SHA256

    69e966e730557fde8fd84317cdef1ece00a8bb3470c0b58f3231e170168af169

  • SHA512

    6718e54a59b91537c41ac913f9d8d6ad97b08cf6a61a4d174458738579a33471ef357173fd9eb4d4c9652ed2bf86c41f6da3cdd20fd7af643cd9f5ee6c9e30d5

  • SSDEEP

    6144:Tz/LBBTHT+7oEf2ZstxQMSGToLoOhD2saLsW8fsmFBkObjD:PLBdy7FpQMlToThD+sW8fsmP7bj

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Unexpected DNS network traffic destination 6 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\invoice_2318362983713_823931342io.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\invoice_2318362983713_823931342io.pdf.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:608
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Deletes itself
      PID:1672

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/608-0-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/608-1-0x0000000000434000-0x0000000000439000-memory.dmp

    Filesize

    20KB

  • memory/608-2-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/608-3-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/608-11-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/608-12-0x0000000000434000-0x0000000000439000-memory.dmp

    Filesize

    20KB

  • memory/3304-4-0x0000000002C20000-0x0000000002C32000-memory.dmp

    Filesize

    72KB

  • memory/3304-8-0x0000000002C20000-0x0000000002C32000-memory.dmp

    Filesize

    72KB

  • memory/3304-10-0x0000000002BA0000-0x0000000002BA1000-memory.dmp

    Filesize

    4KB

  • memory/3304-9-0x0000000002C20000-0x0000000002C32000-memory.dmp

    Filesize

    72KB

  • memory/3304-6-0x0000000002C20000-0x0000000002C32000-memory.dmp

    Filesize

    72KB

  • memory/3304-13-0x0000000002BA0000-0x0000000002BA3000-memory.dmp

    Filesize

    12KB