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Analysis

  • max time kernel
    125s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/11/2022, 18:24

General

  • Target

    ce1bbfd0bc2533735a974613ac9a724426a46911cd254c42a99b0c9efce5b9b8.exe

  • Size

    404KB

  • MD5

    ead7a0983267d4463c0b086a37dede9a

  • SHA1

    633ce2e4b6232f426c78f0a2420d1433a5368c2a

  • SHA256

    ce1bbfd0bc2533735a974613ac9a724426a46911cd254c42a99b0c9efce5b9b8

  • SHA512

    2c326a5e9c53c5741904a471b8ef840bc3fb5bd2b334a875c8d491ad9472979254679e4eb8504cd74d1d94182e303c0024bcbda8f2a33f17f08a2526a6208b51

  • SSDEEP

    6144:soiOGZ+YQh+zVZXbkBR23KtQZlq0f5srHyjwhz573pMV9UibW+c4:+e+zLqRr2ZMNowb73pMV97

Malware Config

Signatures

  • ISR Stealer

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

  • ISR Stealer payload 4 IoCs
  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • Nirsoft 2 IoCs
  • UPX packed file 9 IoCs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ce1bbfd0bc2533735a974613ac9a724426a46911cd254c42a99b0c9efce5b9b8.exe
    "C:\Users\Admin\AppData\Local\Temp\ce1bbfd0bc2533735a974613ac9a724426a46911cd254c42a99b0c9efce5b9b8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4612
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1492
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
        /scomma "C:\Users\Admin\AppData\Local\Temp\b9NbqB9m1s.ini"
        3⤵
          PID:4692
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
          /scomma "C:\Users\Admin\AppData\Local\Temp\1soSKk746n.ini"
          3⤵
          • Accesses Microsoft Outlook accounts
          PID:2652
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe" /BSILlzCwX /C:\Users\Admin\AppData\Roaming\BSILlzCwX\BSILlzCwX.exe
        2⤵
        • Adds Run key to start application
        PID:3752

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\b9NbqB9m1s.ini

      Filesize

      5B

      MD5

      d1ea279fb5559c020a1b4137dc4de237

      SHA1

      db6f8988af46b56216a6f0daf95ab8c9bdb57400

      SHA256

      fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba

      SHA512

      720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

    • memory/1492-155-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1492-148-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1492-135-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1492-137-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2652-150-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2652-154-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2652-153-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2652-152-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/3752-157-0x0000000000400000-0x0000000000408000-memory.dmp

      Filesize

      32KB

    • memory/3752-160-0x0000000075470000-0x0000000075A21000-memory.dmp

      Filesize

      5.7MB

    • memory/3752-159-0x0000000075470000-0x0000000075A21000-memory.dmp

      Filesize

      5.7MB

    • memory/3752-158-0x0000000075470000-0x0000000075A21000-memory.dmp

      Filesize

      5.7MB

    • memory/4612-132-0x0000000075470000-0x0000000075A21000-memory.dmp

      Filesize

      5.7MB

    • memory/4612-133-0x0000000075470000-0x0000000075A21000-memory.dmp

      Filesize

      5.7MB

    • memory/4612-161-0x0000000075470000-0x0000000075A21000-memory.dmp

      Filesize

      5.7MB

    • memory/4692-143-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/4692-141-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/4692-144-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/4692-145-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/4692-146-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB