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Analysis

  • max time kernel
    54s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01/12/2022, 10:16

General

  • Target

    002d28a589e7f164a28488d34a8ebcacc49a44c4f0e5e5814d41ed94971d7f80.exe

  • Size

    666KB

  • MD5

    5795ae6e311cede424e2a7177a0eb8b5

  • SHA1

    588b95b6f7538b66cf62060f92efa87cb5f64ee2

  • SHA256

    002d28a589e7f164a28488d34a8ebcacc49a44c4f0e5e5814d41ed94971d7f80

  • SHA512

    72d32ee07e352e8754a2f404e3e44d9ef315cf892d6abaca5a38b51c2a79b50cf4bdc28f56806cb37917ea35aa5ace940c419d1c6e1bea3e228b310688c349c4

  • SSDEEP

    12288:5RzXdmYc/0jwUdD6YKZfvqPqtCZ3mZWhuBBwsIhEmVh/1o:5tjhpKZfvqqIW8uBBAmmVhNo

Malware Config

Signatures

  • ISR Stealer

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

  • ISR Stealer payload 8 IoCs
  • UPX packed file 7 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\002d28a589e7f164a28488d34a8ebcacc49a44c4f0e5e5814d41ed94971d7f80.exe
    "C:\Users\Admin\AppData\Local\Temp\002d28a589e7f164a28488d34a8ebcacc49a44c4f0e5e5814d41ed94971d7f80.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Users\Admin\AppData\Local\Temp\002d28a589e7f164a28488d34a8ebcacc49a44c4f0e5e5814d41ed94971d7f80.exe
      "C:\Users\Admin\AppData\Local\Temp\002d28a589e7f164a28488d34a8ebcacc49a44c4f0e5e5814d41ed94971d7f80.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1756
      • C:\Users\Admin\AppData\Local\Temp\002d28a589e7f164a28488d34a8ebcacc49a44c4f0e5e5814d41ed94971d7f80.exe
        /scomma "C:\Users\Admin\AppData\Local\Temp\5cCPXnIPzQ.ini"
        3⤵
          PID:1568

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\5cCPXnIPzQ.ini

      Filesize

      5B

      MD5

      d1ea279fb5559c020a1b4137dc4de237

      SHA1

      db6f8988af46b56216a6f0daf95ab8c9bdb57400

      SHA256

      fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba

      SHA512

      720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

    • memory/1568-77-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1568-76-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1568-72-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1568-73-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1568-68-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1756-81-0x0000000002660000-0x0000000002873000-memory.dmp

      Filesize

      2.1MB

    • memory/1756-57-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

    • memory/1756-62-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

    • memory/1756-60-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

    • memory/1756-74-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

    • memory/1756-64-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

    • memory/1756-80-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

    • memory/1756-75-0x0000000002660000-0x0000000002873000-memory.dmp

      Filesize

      2.1MB

    • memory/1756-82-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

    • memory/1956-65-0x0000000000400000-0x0000000000613000-memory.dmp

      Filesize

      2.1MB

    • memory/1956-54-0x0000000075141000-0x0000000075143000-memory.dmp

      Filesize

      8KB

    • memory/1956-55-0x0000000000400000-0x0000000000613000-memory.dmp

      Filesize

      2.1MB