Analysis

  • max time kernel
    120s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/08/2024, 18:28

General

  • Target

    41b435088fb40d730f8a028eedc9dba0N.exe

  • Size

    130KB

  • MD5

    41b435088fb40d730f8a028eedc9dba0

  • SHA1

    87523a4d93a39fad8da1fc3e6a4a9555cd3b0c37

  • SHA256

    8c891e189e032e6cc3696d5e75be8514017f37a26eb4d0d245c95a69cabe4732

  • SHA512

    6273044b976196e54988bbf8cb65778c8d4d24ddd0e601ddff4911e6c1432b4dccfc68737ec3873ee5ff54a530b181ac1d1a63beddd558d6ca268422997a668a

  • SSDEEP

    1536:qfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbJdG:qVqoCl/YgjxEufVU0TbTyDDalbG

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\41b435088fb40d730f8a028eedc9dba0N.exe
    "C:\Users\Admin\AppData\Local\Temp\41b435088fb40d730f8a028eedc9dba0N.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3472
    • \??\c:\windows\resources\themes\explorer.exe
      c:\windows\resources\themes\explorer.exe
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4448
      • \??\c:\windows\resources\spoolsv.exe
        c:\windows\resources\spoolsv.exe SE
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2288
        • \??\c:\windows\resources\svchost.exe
          c:\windows\resources\svchost.exe
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2772
          • \??\c:\windows\resources\spoolsv.exe
            c:\windows\resources\spoolsv.exe PR
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            PID:1552

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\Resources\Themes\explorer.exe

          Filesize

          130KB

          MD5

          2f3b0af8b81eef82fffec617743dc2ae

          SHA1

          215f55729ff21f76db15312ce68131abb61a60a1

          SHA256

          c4880d2bbc058bbc602005c9facf6ab92b3ef829ae4bbf5b73bebb9c9b787197

          SHA512

          6208b73fc12f617a4943e6ca7dd13ba8ba35b9636b444a9323e7d27a9827ae25ccb44025332bf8f1890828c9c7d6bc9ec79fd172316550b7e04d9e7a8fb8713f

        • C:\Windows\Resources\spoolsv.exe

          Filesize

          130KB

          MD5

          0babaa57030ea1d4d6c5347fca28a6ee

          SHA1

          4c78bd6ee9946e7c0a859ef9edb956c9c2312ada

          SHA256

          818f46831413378695a47eb94598810f3ca407defcf252290aea0b3ab57abee9

          SHA512

          341e973622a857a84fec9f290410d203e0475770d93b3a323acbc9dc06a07b35207728870ff55565fb3f59eceeb60899c52ffdd08e458a7ab24804758a4272cd

        • C:\Windows\Resources\svchost.exe

          Filesize

          130KB

          MD5

          b7981bef710e04e1f152953f9e3096ad

          SHA1

          6f6106ac62549ba2978871afaeb8e8662190161c

          SHA256

          ec3fa35757801f77426116d22eaa0a7abfc06505c6ee885237cca2fbbee47739

          SHA512

          e0b9409e61977e9d8c6f5e39cadd5fbd9e6a80a7401e04735419716b06b0694f93c78b549e2a1bb8ceb4d33c68da890d082cde27ee8c84b725e6b7fca875c21d

        • memory/1552-32-0x0000000000400000-0x000000000042F000-memory.dmp

          Filesize

          188KB

        • memory/2288-33-0x0000000000400000-0x000000000042F000-memory.dmp

          Filesize

          188KB

        • memory/2772-36-0x0000000000400000-0x000000000042F000-memory.dmp

          Filesize

          188KB

        • memory/3472-0-0x0000000000400000-0x000000000042F000-memory.dmp

          Filesize

          188KB

        • memory/3472-34-0x0000000000400000-0x000000000042F000-memory.dmp

          Filesize

          188KB

        • memory/4448-35-0x0000000000400000-0x000000000042F000-memory.dmp

          Filesize

          188KB