Resubmissions

01-11-2024 17:52

241101-wfy2gsvmfq 10

01-11-2024 17:47

241101-wc2cfavmcm 10

Analysis

  • max time kernel
    41s
  • max time network
    43s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    01-11-2024 17:52

General

  • Target

    d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe

  • Size

    29KB

  • MD5

    2d65579ad10536a2c3260c0cbbfe3af0

  • SHA1

    368236346c0d7fd05642d26df401c04f747fefb2

  • SHA256

    d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165

  • SHA512

    b65b13626fa3708787e599581f779d6d9c07ecf98fa9b667026e30d8a4b03f570b2a9f21e1bdff97858d5920e3e763dd733e22a28c6802b79ea50e77696d756e

  • SSDEEP

    768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/Nu+:AEwVs+0jNDY1qi/qX

Malware Config

Signatures

  • Detects MyDoom family 1 IoCs
  • MyDoom

    MyDoom is a Worm that is written in C++.

  • Mydoom family
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • UPX packed file 9 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Modifies registry class 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe
    "C:\Users\Admin\AppData\Local\Temp\d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3140
    • C:\Windows\services.exe
      "C:\Windows\services.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      PID:3584
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1136
    • C:\Windows\system32\BackgroundTransferHost.exe
      "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.13
      1⤵
      • Modifies registry class
      PID:4768

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\zincite.log

      MD5

      d41d8cd98f00b204e9800998ecf8427e

      SHA1

      da39a3ee5e6b4b0d3255bfef95601890afd80709

      SHA256

      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

      SHA512

      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

    • C:\Windows\services.exe

      Filesize

      8KB

      MD5

      b0fe74719b1b647e2056641931907f4a

      SHA1

      e858c206d2d1542a79936cb00d85da853bfc95e2

      SHA256

      bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c

      SHA512

      9c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2

    • memory/3140-0-0x0000000000500000-0x0000000000510200-memory.dmp

      Filesize

      64KB

    • memory/3140-13-0x0000000000500000-0x0000000000510200-memory.dmp

      Filesize

      64KB

    • memory/3584-5-0x0000000000400000-0x0000000000408000-memory.dmp

      Filesize

      32KB

    • memory/3584-15-0x0000000000400000-0x0000000000408000-memory.dmp

      Filesize

      32KB

    • memory/3584-16-0x0000000000400000-0x0000000000408000-memory.dmp

      Filesize

      32KB

    • memory/3584-21-0x0000000000400000-0x0000000000408000-memory.dmp

      Filesize

      32KB

    • memory/3584-26-0x0000000000400000-0x0000000000408000-memory.dmp

      Filesize

      32KB

    • memory/3584-28-0x0000000000400000-0x0000000000408000-memory.dmp

      Filesize

      32KB