Analysis

  • max time kernel
    121s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2022 07:26

General

  • Target

    abaf5a5aeeb8c794c824c52fbb9044c1a778e5026ddb043193f8263030ae05cb.exe

  • Size

    565KB

  • MD5

    48c49e01b72fd3fe2c33008b4dd5e629

  • SHA1

    2c26ee4dd7a5f28923d363dcba7e73c033220389

  • SHA256

    abaf5a5aeeb8c794c824c52fbb9044c1a778e5026ddb043193f8263030ae05cb

  • SHA512

    156aaa7a599c8c6e1e305c2bf814836954712cff899097db2c149501a202ec6576435c291e1918eba984c67f54ce8343d24a50d9d16b5f249f548ccbf8ac12ba

  • SSDEEP

    12288:iRefc/d1X0TM60o+F91uGcsdM4AbKG7ec/Hdch+2OsRc:iRefe0Td0Z/PDCKaeCIxi

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\abaf5a5aeeb8c794c824c52fbb9044c1a778e5026ddb043193f8263030ae05cb.exe
    "C:\Users\Admin\AppData\Local\Temp\abaf5a5aeeb8c794c824c52fbb9044c1a778e5026ddb043193f8263030ae05cb.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Users\Admin\AppData\Local\Temp\n5931\s5931.exe
      "C:\Users\Admin\AppData\Local\Temp\n5931\s5931.exe" ins.exe /u 17dced38-7f70-11e3-8a58-80c16e6f498c /t 54104937561ca36a548b45 /e 12909084 /h 2eb144.api.socdn.com /v "C:\Users\Admin\AppData\Local\Temp\abaf5a5aeeb8c794c824c52fbb9044c1a778e5026ddb043193f8263030ae05cb.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:5028
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3040 -s 3892
      2⤵
      • Program crash
      PID:1604
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3040 -ip 3040
    1⤵
      PID:2456

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\n5931\s5931.exe

      Filesize

      411KB

      MD5

      13b0085a03720e67fb8c73db3f14609e

      SHA1

      ddf811f21e6c066b644d03e6751e16efb0fbecce

      SHA256

      f9449897f9ca99b99837ad322c8b6737e7a47e3827b6a4c073c6ca8911d8c340

      SHA512

      39b95dce14b3eea6f191d4dbaaff87ebbc8f3b6982e7b4ee5ebeed83d3b7397441665f25dec5eb9f8a1f3b12f4ddcd604d5852b781f592488263161c0d620e82

    • C:\Users\Admin\AppData\Local\Temp\n5931\s5931.exe

      Filesize

      411KB

      MD5

      13b0085a03720e67fb8c73db3f14609e

      SHA1

      ddf811f21e6c066b644d03e6751e16efb0fbecce

      SHA256

      f9449897f9ca99b99837ad322c8b6737e7a47e3827b6a4c073c6ca8911d8c340

      SHA512

      39b95dce14b3eea6f191d4dbaaff87ebbc8f3b6982e7b4ee5ebeed83d3b7397441665f25dec5eb9f8a1f3b12f4ddcd604d5852b781f592488263161c0d620e82

    • memory/5028-135-0x00007FFC1AFA0000-0x00007FFC1B9D6000-memory.dmp

      Filesize

      10.2MB

    • memory/5028-136-0x000000000111A000-0x000000000111F000-memory.dmp

      Filesize

      20KB

    • memory/5028-137-0x000000000111A000-0x000000000111F000-memory.dmp

      Filesize

      20KB