Analysis

  • max time kernel
    23s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    20-08-2023 14:50

General

  • Target

    njrat.exe

  • Size

    12.0MB

  • MD5

    346268be76f8fa86a5dad611198cd8be

  • SHA1

    a4af910fc86213da4bf3192f2ded04a43b3b3808

  • SHA256

    00d82a10e0816bb95311695ce103eac885ac1df076766ff490f9d27e01d7e381

  • SHA512

    908ce5c52dff8086f0045d5ca9555f3d20fe8cd433590e52ba5255e85130e4d550298d50887f66d3ee0cd245bbf3bbdee70d483e8c4d3ec792efbd01647173fe

  • SSDEEP

    196608:3CQsGbT/9bvLz3S1bA329Oq5UWrlwsGUC:EGbTlj3S1bO29Oq5UWpwsGUC

Score
7/10
upx

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 IoCs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\njrat.exe
    "C:\Users\Admin\AppData\Local\Temp\njrat.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Users\Admin\AppData\Local\Temp\njrat.exe
      "C:\Users\Admin\AppData\Local\Temp\njrat.exe"
      2⤵
      • Loads dropped DLL
      PID:2988

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\_MEI25522\python311.dll

    Filesize

    1.6MB

    MD5

    5792adeab1e4414e0129ce7a228eb8b8

    SHA1

    e9f022e687b6d88d20ee96d9509f82e916b9ee8c

    SHA256

    7e1370058177d78a415b7ed113cc15472974440d84267fc44cdc5729535e3967

    SHA512

    c8298b5780a2a5eebed070ac296eda6902b0cac9fda7bb70e21f482d6693d6d2631ca1ac4be96b75ac0dd50c9ca35be5d0aca9c4586ba7e58021edccd482958b

  • \Users\Admin\AppData\Local\Temp\_MEI25522\python311.dll

    Filesize

    1.6MB

    MD5

    5792adeab1e4414e0129ce7a228eb8b8

    SHA1

    e9f022e687b6d88d20ee96d9509f82e916b9ee8c

    SHA256

    7e1370058177d78a415b7ed113cc15472974440d84267fc44cdc5729535e3967

    SHA512

    c8298b5780a2a5eebed070ac296eda6902b0cac9fda7bb70e21f482d6693d6d2631ca1ac4be96b75ac0dd50c9ca35be5d0aca9c4586ba7e58021edccd482958b

  • memory/2988-78-0x000007FEF6110000-0x000007FEF66F9000-memory.dmp

    Filesize

    5.9MB

  • memory/2988-79-0x000007FEF6110000-0x000007FEF66F9000-memory.dmp

    Filesize

    5.9MB