Analysis

  • max time kernel
    554s
  • max time network
    651s
  • 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/ca-fixer-1.0.jar

  • Size

    12KB

  • MD5

    d60563813a45da621d68efec7f960320

  • SHA1

    3f813ad3c719357fc9c6108101d26db0e44897bf

  • SHA256

    092e40e16ea9cdf4a4bc9bc44ba777a90003596301f26f53cb489a6bb04c390b

  • SHA512

    1d924fe749cf89a77dd6ab1af82a4fcb0ff022e64128b476a58d4f812f3429972cfc944bc06d570b081eea0143b45b9aa0f48c450b2121cd9b9407254e70b901

  • SSDEEP

    192:37Bf3IevearriOECkXZFVVCojMBsX2jOY4GvGrPlNRNISU9IMuVxNVx:39f3IevearzCZrJjz5Zn8SU9IMINx

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\ca-fixer-1.0.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2232
    • 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:2008

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

    8e9338b0782427de6166ae6ae6838ccb

    SHA1

    9b5150dedc4b616c1071d848237f571b4b9d8543

    SHA256

    5f60f26e88eade0fab71c76d64ff558885ac70a6fa40b3c3c13e12a16ab3a7ed

    SHA512

    1f280a1cd295b9a91c8a588557711bd5bbd7965f12f7583452c3a8c978f140933911018fced9ab083db0b81bb7ac974d921c2fb6eff08badd27da9f33613662d

  • memory/2232-5-0x0000028C0E660000-0x0000028C0F660000-memory.dmp

    Filesize

    16.0MB

  • memory/2232-12-0x0000028C0CD90000-0x0000028C0CD91000-memory.dmp

    Filesize

    4KB

  • memory/2232-13-0x0000028C0CD90000-0x0000028C0CD91000-memory.dmp

    Filesize

    4KB

  • memory/2232-15-0x0000028C0CD90000-0x0000028C0CD91000-memory.dmp

    Filesize

    4KB