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Analysis

  • max time kernel
    44s
  • max time network
    109s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    21/11/2022, 04:56

General

  • Target

    69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe

  • Size

    1.1MB

  • MD5

    22847661df98734df1dcd5e16647c1e8

  • SHA1

    24f4e51e9b25f788b5877f5aadb8e40e731b45aa

  • SHA256

    69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638

  • SHA512

    7dc54f1653b0b91a065736b01c6cb11be542eeac3acb85ce2216dcf3102c18cba5b79b1137cf138c688f98924cdc06db2457e0f4b00128a3c2fe668269b15f95

  • SSDEEP

    24576:18czc3Ywt8XzNxagaClz720umOUwvAV2POzncSGXdvU4dtZGAj2w7:mSQY0oa1+H2+OVvA8POzcSevU4Pz17

Malware Config

Signatures

  • ISR Stealer

    ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • UPX packed file 8 IoCs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe
    "C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe
      "C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1096
      • C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe
        "C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
        3⤵
          PID:1944
        • C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe
          "C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data1.dmp
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1028
        • C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe
          "C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data2.dmp
          3⤵
          • Accesses Microsoft Outlook accounts
          PID:340

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/340-85-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/340-94-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/340-92-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/340-91-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/340-81-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/1028-84-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1028-93-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1028-86-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1028-74-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1028-78-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1096-88-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/1096-57-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/1096-65-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/1096-59-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/1096-60-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/1096-68-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/1096-67-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/1096-63-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/1096-56-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/1096-62-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/1096-61-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/1944-75-0x0000000075671000-0x0000000075673000-memory.dmp

      Filesize

      8KB

    • memory/1944-71-0x0000000000400000-0x0000000000454000-memory.dmp

      Filesize

      336KB

    • memory/1944-77-0x0000000000400000-0x0000000000454000-memory.dmp

      Filesize

      336KB

    • memory/1944-69-0x0000000000400000-0x0000000000454000-memory.dmp

      Filesize

      336KB

    • memory/1944-95-0x0000000000400000-0x0000000000454000-memory.dmp

      Filesize

      336KB

    • memory/1944-97-0x0000000000400000-0x0000000000454000-memory.dmp

      Filesize

      336KB