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Analysis

  • max time kernel
    144s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    29/01/2024, 09:54

General

  • Target

    7f89b8e7d5b2deb415f66feecda40aa2.exe

  • Size

    409KB

  • MD5

    7f89b8e7d5b2deb415f66feecda40aa2

  • SHA1

    9d26551521abf980412215f6596e19823ffe48d0

  • SHA256

    66a470eabf3779bdf77f2282611e8993caa5d89f7db757cf1b1a177cdda63e23

  • SHA512

    63cea3c3513ff10fa1cb91b4e46ad7276ecb8fad70884110c86360c48cbcdb770f22d9924aa207aaac23d35407d7d194a1fd874a6e9bb904bb0501fa17f81479

  • SSDEEP

    12288:YWNXzBLHbnpkB06HWifbdv4UwZq9SL7eSFEsboS:YWNDJbn8BHnpAUwZiSL7ji

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Kills process with taskkill 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7f89b8e7d5b2deb415f66feecda40aa2.exe
    "C:\Users\Admin\AppData\Local\Temp\7f89b8e7d5b2deb415f66feecda40aa2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1716
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 1716 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\7f89b8e7d5b2deb415f66feecda40aa2.exe" & start C:\Users\Admin\AppData\Local\ukxuexh.exe -f
      2⤵
      • Deletes itself
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2244
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /pid 1716
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2740
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 3 127.1
        3⤵
        • Runs ping.exe
        PID:2752
      • C:\Users\Admin\AppData\Local\ukxuexh.exe
        C:\Users\Admin\AppData\Local\ukxuexh.exe -f
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\ukxuexh.exe

    Filesize

    409KB

    MD5

    7f89b8e7d5b2deb415f66feecda40aa2

    SHA1

    9d26551521abf980412215f6596e19823ffe48d0

    SHA256

    66a470eabf3779bdf77f2282611e8993caa5d89f7db757cf1b1a177cdda63e23

    SHA512

    63cea3c3513ff10fa1cb91b4e46ad7276ecb8fad70884110c86360c48cbcdb770f22d9924aa207aaac23d35407d7d194a1fd874a6e9bb904bb0501fa17f81479

  • memory/1716-0-0x0000000001000000-0x00000000010B5000-memory.dmp

    Filesize

    724KB

  • memory/1716-1-0x00000000007E0000-0x000000000086D000-memory.dmp

    Filesize

    564KB

  • memory/1716-2-0x00000000003D0000-0x0000000000417000-memory.dmp

    Filesize

    284KB

  • memory/1716-3-0x0000000001000000-0x00000000010B5000-memory.dmp

    Filesize

    724KB

  • memory/1716-4-0x0000000000250000-0x0000000000252000-memory.dmp

    Filesize

    8KB

  • memory/1716-6-0x0000000001000000-0x00000000010B5000-memory.dmp

    Filesize

    724KB

  • memory/2868-10-0x0000000001000000-0x00000000010B5000-memory.dmp

    Filesize

    724KB

  • memory/2868-11-0x0000000001000000-0x00000000010B5000-memory.dmp

    Filesize

    724KB

  • memory/2868-14-0x0000000000F40000-0x0000000000FF5000-memory.dmp

    Filesize

    724KB

  • memory/2868-12-0x0000000000280000-0x0000000000282000-memory.dmp

    Filesize

    8KB

  • memory/2868-15-0x0000000001000000-0x00000000010B5000-memory.dmp

    Filesize

    724KB