Analysis

  • max time kernel
    151s
  • max time network
    161s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-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.

  • 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe
    "C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe"
    1⤵
      PID:2040
    • C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe
      "C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe" -service -lunch
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1736
      • C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe
        "C:\Users\Admin\AppData\Local\Temp\7a836e718b70f586695d1bced9eacfb1aa1b67387b051d0536669754b391fe81.exe"
        2⤵
        • Checks computer location settings
        • Modifies data under HKEY_USERS
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1040

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\AMMYY\hr

      Filesize

      22B

      MD5

      0cea6dd5907d2588f2684ab6e3b80e06

      SHA1

      f89af42e5610933868f8657361118066b4207f47

      SHA256

      08260dd3bad4aa3f1e4b725c1a512b279e78728f75c499fb460aa736fb975a30

      SHA512

      91f85acac593a25f68d769e655bbda99b7f786c26ccd53ed6052915af29f5d5d1ad0967f96dfc717ec1242c352aa0e6d48cf321b484ccda3badb3a7048241f5d

    • C:\ProgramData\AMMYY\hr3

      Filesize

      68B

      MD5

      5defcdfff953b3d2165f35795b60af77

      SHA1

      33a786e38ca07cc9fe89507f86c83712710d09bd

      SHA256

      b13f1298949601395eadfe3bda8efa8178bafac265ded0439ac825e1c9dbde60

      SHA512

      6b9fed372873b2c8ae29f2230f1922c28498cdcba7e016f52152c71219e5d5a15b271df55f94302a7f5801fe20e2cd83fa941f417a6da6e223ba90821730bdff

    • C:\ProgramData\AMMYY\settings3.bin

      Filesize

      271B

      MD5

      714f2508d4227f74b6adacfef73815d8

      SHA1

      a35c8a796e4453c0c09d011284b806d25bdad04c

      SHA256

      a5579945f23747541c0e80b79e79375d4ca44feafcd425ee9bd9302e35312480

      SHA512

      1171a6eac6d237053815a40c2bcc2df9f4209902d6157777377228f3b618cad50c88a9519444ed5c447cf744e4655272fb42dabb567df85b4b19b1a2f1d086d8

    • memory/1040-56-0x0000000000000000-mapping.dmp

    • memory/2040-54-0x00000000760B1000-0x00000000760B3000-memory.dmp

      Filesize

      8KB