Analysis

  • max time kernel
    330s
  • max time network
    347s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-12-2022 19:23

General

  • Target

    7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe

  • Size

    751KB

  • MD5

    1fc7c230d6db0d7a0da6f415da271159

  • SHA1

    e0bd10d83bc7b3f1eb628974a8f690ffda6e9351

  • SHA256

    7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81

  • SHA512

    96d64cba5bf650066e54bcb84f13aabd1992811963ae2dd3530431e86bbc3230d673545953d35767fbf85f61d86b44170d61200d1ffb4f4945268bfc3a7b1403

  • SSDEEP

    12288:Tc1dZibTD9uOroAgeHvCUt4RtlTc+YNKpQsNvVd1gF:Tcc/DwOrZgeHv54Rt6+YNkQsNmF

Score
10/10

Malware Config

Signatures

  • FlawedAmmyy RAT

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

  • Drops file in System32 directory 4 IoCs
  • Modifies data under HKEY_USERS 9 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\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe
    "C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe"
    1⤵
      PID:1964
    • C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe
      "C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe" -service -lunch
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:5112
      • C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe
        "C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe"
        2⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1272

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • C:\ProgramData\AMMYY\hr

      Filesize

      22B

      MD5

      9ef92edc09df8b1cff4c1f38c8dbcc8f

      SHA1

      49d918de1658ea4dc81bd56884387f741368c448

      SHA256

      dbef6055dbd5d1d87f830a830921390a9d42870042c07896adb1bc8c5b7d361e

      SHA512

      79454d7f312ae42bddb58327b70a083a1d3f88244f734fe8812a63c41a34fac7959352da2bdcc583393ca56037cb91335f6b9904b2b186a4b7830583e77516e7

    • C:\ProgramData\AMMYY\hr3

      Filesize

      68B

      MD5

      dd9c7c138184103fb0ec7a133177c99c

      SHA1

      599dc3e3ff31441c695c5b9f9e35ae9beb8ea5e8

      SHA256

      41f04bd44255d50a50f9a9560cdc99866cb38d4019c6dd76a2c2a8ed4c765c3a

      SHA512

      a0d2d2736385093e6a4cf35f7ef8a0375401c9b8a1f332a8d2aabdc10d232a83eca439502740ccbb379dee9ac51445139396d75825cf63689b053f4229bbd6e9

    • C:\ProgramData\AMMYY\settings3.bin

      Filesize

      271B

      MD5

      714f2508d4227f74b6adacfef73815d8

      SHA1

      a35c8a796e4453c0c09d011284b806d25bdad04c

      SHA256

      a5579945f23747541c0e80b79e79375d4ca44feafcd425ee9bd9302e35312480

      SHA512

      1171a6eac6d237053815a40c2bcc2df9f4209902d6157777377228f3b618cad50c88a9519444ed5c447cf744e4655272fb42dabb567df85b4b19b1a2f1d086d8

    • memory/1272-132-0x0000000000000000-mapping.dmp