Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-04-2024 19:57

General

  • Target

    33cfb7c9c00d219166b7c1688d5711667fa618960132723813876fc2293ca6d4.exe

  • Size

    234KB

  • MD5

    1f5362f579d01f0f0c0e62628bfc79e6

  • SHA1

    cdc1c18d3446f1445436a93c758c1bd72d4c5d52

  • SHA256

    33cfb7c9c00d219166b7c1688d5711667fa618960132723813876fc2293ca6d4

  • SHA512

    55693b31b2078c288bb827312fbb1fc00d29fe2cfa108245ba0b485aa4e7a9b24129e8afa7a5b67c5c107d17bef58bbebad98cc70ab120212bfcbf65e4a23692

  • SSDEEP

    6144:NPDLCL+Io5R4nM/4rgwNkMWWQUy8ZwYjA7Y1ntXdmQg:NPKLyqzgwN33y8ZwYnt8t

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 9 IoCs

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

  • 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.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 18 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\33cfb7c9c00d219166b7c1688d5711667fa618960132723813876fc2293ca6d4.exe
    "C:\Users\Admin\AppData\Local\Temp\33cfb7c9c00d219166b7c1688d5711667fa618960132723813876fc2293ca6d4.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3480
    • C:\Users\Admin\AppData\Local\Temp\33cfb7c9c00d219166b7c1688d5711667fa618960132723813876fc2293ca6d4.exe
      "C:\Users\Admin\AppData\Local\Temp\33cfb7c9c00d219166b7c1688d5711667fa618960132723813876fc2293ca6d4.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4376
      • C:\Users\Admin\AppData\Local\Temp\33cfb7c9c00d219166b7c1688d5711667fa618960132723813876fc2293ca6d4.exe
        "C:\Users\Admin\AppData\Local\Temp\33cfb7c9c00d219166b7c1688d5711667fa618960132723813876fc2293ca6d4.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3156
    • C:\Users\Admin\AppData\Local\Temp\33cfb7c9c00d219166b7c1688d5711667fa618960132723813876fc2293ca6d4.exe
      "C:\Users\Admin\AppData\Local\Temp\33cfb7c9c00d219166b7c1688d5711667fa618960132723813876fc2293ca6d4.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\brasilian lesbian fucking masturbation .mpg.exe

    Filesize

    523KB

    MD5

    a8ab3a9270f56c5d28502be8b3c31332

    SHA1

    97fcfa3d209a93a4e9091522c4b7ebfcc29c77d7

    SHA256

    6bfc2428501711875acbd887b986d3ce22d9c6eaf89228f947408b26a4920f23

    SHA512

    42255e76a39e42e5c9c54e9cf7031f8cbba543eb44a4728ddd0430ae7bc3d45bcbc589227eddde06d3dc36f5d8d788d2bcc02099d7f600a4e0a7f4625ac7e5c1

  • C:\debug.txt

    Filesize

    146B

    MD5

    6ae2bef8f6aa6ba58dc44aaa60df5a0f

    SHA1

    2719a5ac786fa0e27580ce7e192cdfc9ed10102a

    SHA256

    9a4127086ea21f9498466058686dd8795fcc647f6af330dae28d892467e69158

    SHA512

    5521c5baffe2887fe65b18974f2e22673be4452e3e9f00a295a967ff208cb785ef99a7ebf87ac4475ddfa002fa75db5e2090b973f43c528e61644f6a20c6dcf1

  • memory/2984-157-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/2984-194-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/3156-158-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/3156-195-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/3480-0-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/3480-188-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/4376-57-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/4376-193-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB