Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    21/07/2026, 15:00

General

  • Target
    2026-07-21_92f4ff5e0580695e7ff2f25f42b9ba9b_amadey_cobalt-strike_elex_hellokitty_luca-stealer_njrat.exe
  • Size 267KB
  • Sample260721-sdadkabd28
  • SHA256 ad297272111b46e5782fc85c13268f0b6000fbce6c8821133f231ddd48f15412
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Renames multiple (254) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Drivers directory 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-21_92f4ff5e0580695e7ff2f25f42b9ba9b_amadey_cobalt-strike_elex_hellokitty_luca-stealer_njrat.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-21_92f4ff5e0580695e7ff2f25f42b9ba9b_amadey_cobalt-strike_elex_hellokitty_luca-stealer_njrat.exe"
    1⤵
    • Drops file in Drivers directory
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2584
    • C:\Windows\SysWOW64\net.exe
      net stop "Kingsoft AntiVirus Service"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5312
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4156
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a657B.bat
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:3680
    • C:\Windows\Logo1_.exe
      C:\Windows\Logo1_.exe
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2084
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5624
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:5648
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:6024
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:5272
  • C:\Windows\uninstall\rundl132.exe
    C:\Windows\uninstall\rundl132.exe
    1⤵
    • Drops file in Drivers directory
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5816

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        RCX98.tmp

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RCX98.tmp
        • Size 156KB
        • SHA256 85d1153885e798608e7be874dbf327886d29ef32b2b75ff000e113cbd6781c44
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AdobeARM.exe.Exe

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe.Exe
        • Size 1.2MB
        • SHA256 9150219f0eace2ca8e21d8da4797a079c4c895fcda819c67038786346c933ec9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX679.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\RCX679.tmp
        • Size 103KB
        • SHA256 d2ce3e90885919f606f63d95271c3251720b3b0c9ca8a00e766f840fe23e4338
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX6D9.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\RCX6D9.tmp
        • Size 91KB
        • SHA256 98add0db7c43b0ba137127b6ddb34ac1b12ebf974253924384b6d33ed556634c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX518.tmp

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\RCX518.tmp
        • Size 118KB
        • SHA256 44286cb468b055d4eee9c011b68e9505dde1f87baebb90d9d005e50238868538
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX803.tmp

        • Path C:\Program Files (x86)\Mozilla Maintenance Service\RCX803.tmp
        • Size 100KB
        • SHA256 b58042eb545761dea7c1aeacd827b52ea63ea54d8e8aa91893435c0a26a828ab
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe.Exe

        • Path C:\Program Files\7-Zip\7z.exe.Exe
        • Size 642KB
        • SHA256 8a70473e9cf2264d61cc00784a1ba1ba96b98a2b53925aa181a0136a988359aa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXF4A5.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXF4A5.tmp
        • Size 92KB
        • SHA256 565eadc3a40b709ed7ab2015ebf30ca8e899e36c60da5fc28bbe0c7e38580cdb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXF805.tmp

        • Path C:\Program Files\Mozilla Firefox\RCXF805.tmp
        • Size 91KB
        • SHA256 3568434773f17e9232d6736021d3fb73be45a6d566f1b618949150aa59eac2aa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXF848.tmp

        • Path C:\Program Files\VideoLAN\VLC\RCXF848.tmp
        • Size 92KB
        • SHA256 130118005bac068bedf5cc67869402ef667bb502140989e417390e0502a7c5df
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a657B.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a657B.bat
        • Size 932B
        • SHA256 826190d3fae78564f2b814ab001a1a9cb75544b43a1ef810b5f1f37f21c258b3
        • MD5 SHA1 SHA512 TLSH

        2026-07-21_92f4ff5e0580695e7ff2f25f42b9ba9b_amadey_cobalt-strike_elex_hellokitty_luca-stealer_njrat.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\2026-07-21_92f4ff5e0580695e7ff2f25f42b9ba9b_amadey_cobalt-strike_elex_hellokitty_luca-stealer_njrat.exe.exe
        • Size 174KB
        • SHA256 c721f2d76b04ab76385bfc146e1342f0923b262cf7685c7cc950fd48f4c12e58
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 93KB
        • SHA256 133494a8a5b91cd27720a6e25110c2eab9b3b6b92b8466efd6568eee4596f16d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hosts

        • Path C:\Windows\system32\drivers\etc\hosts
        • Size 842B
        • SHA256 d9704dab05e988be3e5e7b7c020bb9814906d11bb9c31ad80d4ed1316f6bc94e
        • MD5 SHA1 SHA512 TLSH

        memory/2084-768-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2084-23-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2084-13-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2084-1253-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2584-0-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2584-12-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/5816-17-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/5816-20-0x0000000000400000-0x0000000000429000-memory.dmp