Analysis

  • max time kernel
    86s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    30-12-2023 22:50

General

  • Target

    1efbc94be630bf1ff280896e81adad1c.exe

  • Size

    158KB

  • MD5

    1efbc94be630bf1ff280896e81adad1c

  • SHA1

    bf1e425c7b25b43301e21bfce5ebe73522a72316

  • SHA256

    c57808a9e2fe1a1e190160d624e9cff6a496ed0d679f7d7a7c0e8760b0b94503

  • SHA512

    1e1c62cf05daac39408d4a7155927e9964052adb369f5551a26134acd4decc13fa4181207bbbabdb4ee9d14585907c402027627a4a684323c3d7a9f44015dc64

  • SSDEEP

    3072:MR/8rqUUfxIdq1n2UuVr2zJxJDwHTkjRzJFkPnHcCzbKtZc:MB85UfxIcpvwHAjRlFkPnHc2utZc

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Registers COM server for autorun 1 TTPs 4 IoCs
  • Unexpected DNS network traffic destination 9 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies registry class 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    1⤵
    • Executes dropped EXE
    PID:464
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Executes dropped EXE
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1204
    • C:\Users\Admin\AppData\Local\Temp\1efbc94be630bf1ff280896e81adad1c.exe
      "C:\Users\Admin\AppData\Local\Temp\1efbc94be630bf1ff280896e81adad1c.exe"
      2⤵
      • Registers COM server for autorun
      • Suspicious use of SetThreadContext
      • Drops file in Windows directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2188
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Deletes itself
        PID:2980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/464-11-0x00000000000E0000-0x00000000000E1000-memory.dmp

    Filesize

    4KB

  • memory/464-18-0x00000000000E0000-0x00000000000E1000-memory.dmp

    Filesize

    4KB

  • memory/1204-3-0x00000000004D0000-0x00000000005D0000-memory.dmp

    Filesize

    1024KB

  • memory/2188-2-0x00000000004D0000-0x00000000005D0000-memory.dmp

    Filesize

    1024KB

  • memory/2188-1-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/2188-14-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/2188-15-0x00000000004D0000-0x00000000005D0000-memory.dmp

    Filesize

    1024KB

  • memory/2188-17-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB