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Analysis

  • max time kernel
    155s
  • max time network
    198s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    20/02/2024, 14:37

General

  • Target

    VirusSign.2024.02.08/03e8dd811ff56c2ef65a494a29601f9e.exe

  • Size

    278KB

  • MD5

    03e8dd811ff56c2ef65a494a29601f9e

  • SHA1

    04d06be2302da7b9117f8cd57821c7a98ae919fd

  • SHA256

    bd31bf973af6b1c530482515829e2c7ec1451bf487d9d8891d42b2eb27dffbad

  • SHA512

    c9b68d104dba1e20abffd8cbd71cc650c003872f35bc6cc1a88407f79d6c284a7120155b7a760fcfdc31e26c0b335c69918249f8f1e428c86b97cfa9fee218a6

  • SSDEEP

    6144:6jluQoSFIo5R4nM/40yJoVj4QABWnmc6NGqYMeQIyi3MY9U0ht01SZ:6EQoSvqhoMZUnmcCX4Q+d9BQSZ

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 7 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 10 IoCs
  • Drops file in Program Files directory 15 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VirusSign.2024.02.08\03e8dd811ff56c2ef65a494a29601f9e.exe
    "C:\Users\Admin\AppData\Local\Temp\VirusSign.2024.02.08\03e8dd811ff56c2ef65a494a29601f9e.exe"
    1⤵
    • 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:2800
    • C:\Users\Admin\AppData\Local\Temp\VirusSign.2024.02.08\03e8dd811ff56c2ef65a494a29601f9e.exe
      "C:\Users\Admin\AppData\Local\Temp\VirusSign.2024.02.08\03e8dd811ff56c2ef65a494a29601f9e.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2700
      • C:\Users\Admin\AppData\Local\Temp\VirusSign.2024.02.08\03e8dd811ff56c2ef65a494a29601f9e.exe
        "C:\Users\Admin\AppData\Local\Temp\VirusSign.2024.02.08\03e8dd811ff56c2ef65a494a29601f9e.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Windows Sidebar\Shared Gadgets\brasilian porn gay [free] nipples penetration (Britney).rar.exe

    Filesize

    752KB

    MD5

    faf8b2cfb41986ea54bcd888be7961f1

    SHA1

    56b2294c27a317d912a268b76b8d231c64102b12

    SHA256

    e03f7396659069282bb761e69d97c8966801567590a8331eed03849050c27818

    SHA512

    f3dcb5edfad41d76f4a839cdf81f0b91a352a224f3896ab286e33ba6ef046ae0deadadf501a8243992297d8fd17eef1417756ad8cc9fba42f2e514b42a1dadf5

  • memory/2700-25-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2700-62-0x0000000004920000-0x0000000004941000-memory.dmp

    Filesize

    132KB

  • memory/2700-97-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2700-98-0x0000000004920000-0x0000000004941000-memory.dmp

    Filesize

    132KB

  • memory/2800-0-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2800-92-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2800-95-0x00000000052A0000-0x00000000052C1000-memory.dmp

    Filesize

    132KB

  • memory/3016-63-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/3016-102-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB