Analysis

  • max time kernel
    151s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2022 06:09

General

  • Target

    ebc69b5bde229922bf3067e8943a476a38c6914f727323bef5908fc46ae29168.exe

  • Size

    684KB

  • MD5

    a0a4d0bd41b9c117569f8a1e46a00a3a

  • SHA1

    add33562f3ddedf3c5fb89814f26eb46f90d8d34

  • SHA256

    ebc69b5bde229922bf3067e8943a476a38c6914f727323bef5908fc46ae29168

  • SHA512

    63be9ad4ee7859c1b900d8568f8acdfa52dccf1a1576e9d66a50e9da73d19e8225dc1ceb43b8e659081b7cf85c9122ee3aa75caa98aec4519d12abe728fe6618

  • SSDEEP

    12288:dqpX2zPf0bvoLsU+FKN0fCskD1RtcnzepMqBCzzgf:wOPMrGL+FKNAe1RtkzepMqBCIf

Score
10/10

Malware Config

Signatures

  • FlawedAmmyy RAT

    Remote-access trojan based on leaked code for the Ammyy remote admin software.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Modifies data under HKEY_USERS 6 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ebc69b5bde229922bf3067e8943a476a38c6914f727323bef5908fc46ae29168.exe
    "C:\Users\Admin\AppData\Local\Temp\ebc69b5bde229922bf3067e8943a476a38c6914f727323bef5908fc46ae29168.exe"
    1⤵
      PID:4572
    • C:\Users\Admin\AppData\Local\Temp\ebc69b5bde229922bf3067e8943a476a38c6914f727323bef5908fc46ae29168.exe
      "C:\Users\Admin\AppData\Local\Temp\ebc69b5bde229922bf3067e8943a476a38c6914f727323bef5908fc46ae29168.exe" -service -lunch
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1208
      • C:\Users\Admin\AppData\Local\Temp\ebc69b5bde229922bf3067e8943a476a38c6914f727323bef5908fc46ae29168.exe
        "C:\Users\Admin\AppData\Local\Temp\ebc69b5bde229922bf3067e8943a476a38c6914f727323bef5908fc46ae29168.exe"
        2⤵
        • Checks computer location settings
        • Modifies data under HKEY_USERS
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4460

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\ProgramData\AMMYY\hr

      Filesize

      22B

      MD5

      2cf04dcc32ba39eb15784e472511f028

      SHA1

      2179e8936320b6617b6d23ddcbc8a0dace71d407

      SHA256

      e128e7d070e546001d00e107801fb66b5418741ed2432f6eba9ea77cc010ef8b

      SHA512

      5de3b56de2f4c6c439c3e6b6eaca7eae5ef7e0ddca947af2d45b34e421542b4f75273acf2a66c3f90a06e93cf563bb8369d63c28dff22a99373c88e0afc28436

    • C:\ProgramData\AMMYY\hr3

      Filesize

      68B

      MD5

      042eaefb36be3cc9ca16fd30dd827b89

      SHA1

      ebf572f655654af9ac68dcd4305af1e60f81fdad

      SHA256

      be331228292a7531198004b107967095598758ea35ee0715b13ad4c054f7bcdc

      SHA512

      995c465a55fd35d6e263b453a7541764645b8b5b06df2aeeaa780577301a01590ab99541d0bb8e1b9cb5bb608dedd5af17ee8d907e4a969e33d84a2c833232f0

    • C:\ProgramData\AMMYY\settings3.bin

      Filesize

      353B

      MD5

      f8c4c4c5c7319a68e08a5deab9f4747b

      SHA1

      5d254e10e2dc743ed090cf50596b8171d08114a4

      SHA256

      1236d3ece02c9d7ddae10e77775549f25a6f767b13bd116684c84c2e88a90de2

      SHA512

      1f5dca6908ab2a6dc8ba8f355f999d3a6d9c6cb322d7e1f067069be8de2a3300c8a48c23c627de2aedac45e694821936e081c9109c927ac2e3f30997a33e8398