Analysis

  • max time kernel
    111s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-11-2024 22:36

General

  • Target

    502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe

  • Size

    333KB

  • MD5

    28e89125b6fa82d12ab9408034852110

  • SHA1

    88b5661e4ee9e7272f51d6c01ccdf883e9994c06

  • SHA256

    502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2

  • SHA512

    379ccb72ff77cafce9a8a74a721618e8762cbba812698409f276ffc16274bcdd987c9cbe29502b81463e51bef106fa007871d0255e54c77d0526d4f1ffbdc7b0

  • SSDEEP

    6144:JVBqzX2x/XsQ1YA53/vkNI+uuu7iDgbzzWoOd1KLcdV:BqzX2xfdY6/cNKlD+o61KUV

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • UPX packed file 1 IoCs

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

  • Drops file in Program Files 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe
    "C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3976
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\acdrz.exe "C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:3132
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:220
      • C:\Users\Admin\AppData\Local\Temp\acdrz.exe
        C:\Users\Admin\AppData\Local\Temp\\acdrz.exe "C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4108
        • \??\c:\Program Files\cexfox\jqxx.exe
          "c:\Program Files\cexfox\jqxx.exe" "c:\Program Files\cexfox\jqxxq.dll",PraseHTML C:\Users\Admin\AppData\Local\Temp\acdrz.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\cexfox\jqxx.exe

    Filesize

    60KB

    MD5

    889b99c52a60dd49227c5e485a016679

    SHA1

    8fa889e456aa646a4d0a4349977430ce5fa5e2d7

    SHA256

    6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

    SHA512

    08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

  • C:\Users\Admin\AppData\Local\Temp\acdrz.exe

    Filesize

    333KB

    MD5

    631804d141e2b343abb16ff07c97e03b

    SHA1

    1132269fd8d83b7d17b5344d0cdd2374f35bcbc7

    SHA256

    a393ce9c280228d4b5e2d985e9bc3e240d8607477d43629ec868a9bf84d004c9

    SHA512

    c38e6c083da0301989d7a0308e173fbc69212f82e6dd85b238c79da28537919dffc4ef89914b6796284f9c08d1b9142e328deb90195638ded6390728bb978b77

  • \??\c:\Program Files\cexfox\jqxxq.dll

    Filesize

    149KB

    MD5

    8ea6891ca69db507ea0aed04ad1ba2dd

    SHA1

    ae370068ad6988679af9c4da4ea653c66b66b249

    SHA256

    be942def1db6b710fac44aa1eebe88acf33d0d569081f38e820aa99d88a11607

    SHA512

    83258891be477ea5a0127d957b9fcdb9f9ac47e1f5940cdfeab0b324c522d51a2d0515b2a6571f8dc1a25e07d05e34b33bf67b45e6bc179cfb47a3b27c228edf

  • memory/4772-15-0x0000000010000000-0x0000000010083000-memory.dmp

    Filesize

    524KB

  • memory/4772-17-0x0000000010000000-0x0000000010083000-memory.dmp

    Filesize

    524KB

  • memory/4772-18-0x0000000010000000-0x0000000010083000-memory.dmp

    Filesize

    524KB

  • memory/4772-16-0x0000000010001000-0x0000000010022000-memory.dmp

    Filesize

    132KB

  • memory/4772-11-0x0000000010000000-0x0000000010083000-memory.dmp

    Filesize

    524KB

  • memory/4772-19-0x0000000010000000-0x0000000010083000-memory.dmp

    Filesize

    524KB

  • memory/4772-23-0x0000000010000000-0x0000000010083000-memory.dmp

    Filesize

    524KB

  • memory/4772-26-0x0000000010000000-0x0000000010083000-memory.dmp

    Filesize

    524KB

  • memory/4772-30-0x0000000010000000-0x0000000010083000-memory.dmp

    Filesize

    524KB