Analysis

  • max time kernel
    433s
  • max time network
    454s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-04-2024 15:08

General

  • Target

    Nurik/client_1_16_5/libraries/gson-2.10.1.jar

  • Size

    276KB

  • MD5

    df6097815738cb31fc56391553210843

  • SHA1

    b3add478d4382b78ea20b1671390a858002feb6c

  • SHA256

    4241c14a7727c34feea6507ec801318a3d4a90f070e4525681079fb94ee4c593

  • SHA512

    7503e4b8d05c6cc0ecb3a94c5a2e070e049083a441003a79a0cdf474f4286699b4ba1d2a655ddabb8ba10c50e7c36a7045cccdaee465166d4630db647aba2727

  • SSDEEP

    3072:p4WGydWjBhxyrhQG8L58iASUZNKszf+KRb2nkqzcKxrKGKXukGjPphbeT9ctyCmA:OWGydCfxAJKsr+yKoKRKNGjPMLA

Score
7/10

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\Nurik\client_1_16_5\libraries\gson-2.10.1.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1160
    • C:\Windows\system32\icacls.exe
      C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
      2⤵
      • Modifies file permissions
      PID:1584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

    Filesize

    46B

    MD5

    9ad623e940d2aa80e5db998c5aff7084

    SHA1

    f820b34265b61ab1f73e9ebae88066039e554523

    SHA256

    595e06fe56ffe5040f61fe71bb5bdec9cc52fde31e312aafb8f819006d4206bb

    SHA512

    0be00516e988876ffab757df688e38fd3d540f3fa79c980514ea287827147c28a427edbba983e3cdf2026d67ce725b43540ed3d929dc008bd029f3fce997f64a

  • memory/1160-4-0x00000162015A0000-0x00000162025A0000-memory.dmp

    Filesize

    16.0MB

  • memory/1160-11-0x000001627FD10000-0x000001627FD11000-memory.dmp

    Filesize

    4KB

  • memory/1160-13-0x00000162015A0000-0x00000162025A0000-memory.dmp

    Filesize

    16.0MB