Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    24/04/2026, 01:52

General

  • Target
    2026-04-24_c05cd0d41581325ec03ab5d405f016cb_amadey_cobalt-strike_elex_hijackloader_luca-stealer_njrat_smoke-loader.exe
  • Size 373KB
  • Sample260424-catd9sbt2p
  • SHA256 00f2e48273b2b7e549fd749e67f398465a7bbe4b70d2ccb0447a56119f8030aa
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Renames multiple (258) 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 3 IoCs
  • 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\2026-04-24_c05cd0d41581325ec03ab5d405f016cb_amadey_cobalt-strike_elex_hijackloader_luca-stealer_njrat_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-24_c05cd0d41581325ec03ab5d405f016cb_amadey_cobalt-strike_elex_hijackloader_luca-stealer_njrat_smoke-loader.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:1020
    • C:\Windows\SysWOW64\net.exe
      net stop "Kingsoft AntiVirus Service"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2136
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4708
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a5CB1.bat
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3656
    • 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:1708
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3540
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4076
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3128
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3192
  • 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:4348

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        RCXF696.tmp

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RCXF696.tmp
        • Size 139KB
        • SHA256 a144b05de8c969bc2ce9451982841794bb8ec0c69bdf2a674e926a87d7393947
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXF8DB.tmp

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\RCXF8DB.tmp
        • Size 77KB
        • SHA256 a2bc582bc299eb46619a07153960a33d987ba452af0dfa1d52351ac85b1729ad
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXFAAD.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\132.0.2957.140\RCXFAAD.tmp
        • Size 86KB
        • SHA256 8805bc8ad9c89353af689fc4ca1b50ffb083b27499e784f2e2290a9ee91555b9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXFA2D.tmp

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\RCXFA2D.tmp
        • Size 101KB
        • SHA256 3ce873fe622b3857a635479172a2f4b76099bc719ace4d81880be8457d77ddb5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXEA3E.tmp

        • Path C:\Program Files\7-Zip\RCXEA3E.tmp
        • Size 74KB
        • SHA256 538ce1ae70d76432847796da3273f1d38fc176c670f54a013e15b25992921cf1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXEB4E.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXEB4E.tmp
        • Size 75KB
        • SHA256 f6f5bc585fd4fa05e86108d155ebe70ad0fa0eb4566885b8c211c633be614d96
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXEE02.tmp

        • Path C:\Program Files\Mozilla Firefox\RCXEE02.tmp
        • Size 74KB
        • SHA256 410a4d7848292a6db63c8167e5cc471de0c7a5b9514416d4a592c5e125939d0d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXEE14.tmp

        • Path C:\Program Files\Mozilla Firefox\uninstall\RCXEE14.tmp
        • Size 83KB
        • SHA256 a5032f3b5b62290de9240ff7047d7ec9c3c89ac0dd27fdf98fbd398c87289b6e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.exe.Exe

        • Path C:\ProgramData\Adobe\Setup\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\setup.exe.Exe
        • Size 528KB
        • SHA256 4fcc32df4599b9aa22c92cf55abfd2eda3316a85554d65caaa14ef4972f5189f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX1EA.tmp

        • Path C:\ProgramData\Package Cache\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\RCX1EA.tmp
        • Size 75KB
        • SHA256 2fdf7a4777c50bd2c92249ac7d39d415d0651840e8d4ce879dc2f57b21272451
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a5CB1.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a5CB1.bat
        • Size 1022B
        • SHA256 8ae99db09d0a211b7c8768735a731f342a03921fb239fd5ff1cbb1011b22a731
        • MD5 SHA1 SHA512 TLSH

        2026-04-24_c05cd0d41581325ec03ab5d405f016cb_amadey_cobalt-strike_elex_hijackloader_luca-stealer_njrat_smoke-loader.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\2026-04-24_c05cd0d41581325ec03ab5d405f016cb_amadey_cobalt-strike_elex_hijackloader_luca-stealer_njrat_smoke-loader.exe.exe
        • Size 284KB
        • SHA256 4dfadea4c0f21edeea184d18a3e18fda76ba032a9e36a5c787260195f6ab85b1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 89KB
        • SHA256 b89b79d5cbe998285bcc254020c647412a09f379bd8d637e59e862ec225e67aa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hosts

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

        memory/1020-8-0x0000000000400000-0x0000000000425000-memory.dmp

        memory/1708-17-0x0000000000400000-0x0000000000425000-memory.dmp

        memory/1708-765-0x0000000000400000-0x0000000000425000-memory.dmp

        memory/1708-1259-0x0000000000400000-0x0000000000425000-memory.dmp

        memory/4348-15-0x0000000000400000-0x0000000000425000-memory.dmp