Analysis

  • max time kernel
    136s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 04:11

General

  • Target

    ddc3d1233a61f6c82efbd7e4e0bad8f4e416df064955a22d841b379f5eb3585d.exe

  • Size

    63KB

  • MD5

    ade6b6ede33e71a4cc51dbed42b3a4a0

  • SHA1

    655d586757b39b97256574f17ef8a1b3e312f18d

  • SHA256

    ddc3d1233a61f6c82efbd7e4e0bad8f4e416df064955a22d841b379f5eb3585d

  • SHA512

    3f369b6371ff7c82a795628c509b4f542abcb41119fcedec084b50f6e78579a71360d4fa67f78a84580d03ae6e021fbd77fbdaa5958d80b1b91567a8af2b1536

  • SSDEEP

    1536:h4UHxpN/MUXsLTvCj0DBXJaOjgKWCGQtFg4yeIbCw:h4URpNUUX6z/DBXJfjgKWILgtr

Score
8/10

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ddc3d1233a61f6c82efbd7e4e0bad8f4e416df064955a22d841b379f5eb3585d.exe
    "C:\Users\Admin\AppData\Local\Temp\ddc3d1233a61f6c82efbd7e4e0bad8f4e416df064955a22d841b379f5eb3585d.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1440
    • C:\Users\Admin\AppData\Local\Temp\ddc3d1233a61f6c82efbd7e4e0bad8f4e416df064955a22d841b379f5eb3585d.exe
      "C:\Users\Admin\AppData\Local\Temp\ddc3d1233a61f6c82efbd7e4e0bad8f4e416df064955a22d841b379f5eb3585d.exe"
      2⤵
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1156
      • C:\Windows\syswow64\svchost.exe
        C:\Windows\syswow64\svchost.exe
        3⤵
        • Adds policy Run key to start application
        • Deletes itself
        • Drops file in Program Files directory
        PID:1064

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nsjCF62.tmp\overnighter.dll

    Filesize

    20KB

    MD5

    12ae5bff3772b59ab907fdfd9282be77

    SHA1

    dcbf72553930741e9d1e8d4b3a25cb79c0402cdf

    SHA256

    94f89fa00fc651631293dd3a2230ef4e849f251ec7ce653e73f22b03227095d8

    SHA512

    17980f51c43a5e0fd7ed34e6f6c1f5a34705e9e873eb82a64dce8d9371dd346c97550f302db64fedc8d8cdf4d014948c6013eed89943173b7b657066ca44f92d

  • memory/1064-61-0x0000000000000000-mapping.dmp

  • memory/1064-62-0x0000000000370000-0x0000000000378000-memory.dmp

    Filesize

    32KB

  • memory/1064-63-0x0000000000020000-0x0000000000025000-memory.dmp

    Filesize

    20KB

  • memory/1064-64-0x0000000000020000-0x0000000000025000-memory.dmp

    Filesize

    20KB

  • memory/1156-56-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/1156-57-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/1156-59-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/1156-60-0x000000000040141C-mapping.dmp

  • memory/1440-54-0x00000000766F1000-0x00000000766F3000-memory.dmp

    Filesize

    8KB