Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/08/2026, 08:30

General

  • Target
    2026-08-23_76f67b8b4d70064db8fc93e852d81185_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe
  • Size 361KB
  • Sample260824-keeexazxcs
  • SHA256 733a3927ab0a0a7a97127bfbe70de2d5c459f8c1f66867a40d4f2a5d5d963163
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Renames multiple (259) 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
  • 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\2026-08-23_76f67b8b4d70064db8fc93e852d81185_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-23_76f67b8b4d70064db8fc93e852d81185_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.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:5460
    • C:\Windows\SysWOW64\net.exe
      net stop "Kingsoft AntiVirus Service"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1832
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5896
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a1AE1.bat
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:2016
    • 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:4380
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4972
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4624
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2324
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3216
  • 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:3148

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        RCXB1C8.tmp

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RCXB1C8.tmp
        • Size 140KB
        • SHA256 dd5339b41631066a07c78457b9c8c0dc49b34550e6ed05e3d6a63fc9daa98ec8
        • 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 354612c947750ea56fe906b6748e9e247d20c506b8b5a168f572edab9efb4cc3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXB789.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\RCXB789.tmp
        • Size 87KB
        • SHA256 e7f67b4f73acabfb3273c6c3c34ea4317f28dd948fd17848fe6e056a13db4753
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXB7EA.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\RCXB7EA.tmp
        • Size 74KB
        • SHA256 84ac4e3b57d7ea9564ba057c67b103c1edabe83ec4509f5fa485ca92a8b353c1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXB5EC.tmp

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\RCXB5EC.tmp
        • Size 102KB
        • SHA256 d9a17342439bc242751276e361b18a4a90555b4f5e8205ac96ab15ddff00e814
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXB980.tmp

        • Path C:\Program Files (x86)\Mozilla Maintenance Service\RCXB980.tmp
        • Size 83KB
        • SHA256 79d37a6b70d0bf9db4e945010b4fad145d50e5f7743d77d4e71d78ea1216f509
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXA85E.tmp

        • Path C:\Program Files\7-Zip\RCXA85E.tmp
        • Size 75KB
        • SHA256 1b67bfc9bb87c16e0656464b0df00c3842f144b2c64a4cdd7fc2fea6352a60b0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXAC0E.tmp

        • Path C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\RCXAC0E.tmp
        • Size 75KB
        • SHA256 a20c8d39672d9faac6bb79bd2ac81f1f99141a115dd5f95c277a3bf9a436a737
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.exe.Exe

        • Path C:\ProgramData\Adobe\Setup\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\setup.exe.Exe
        • Size 529KB
        • SHA256 b07bbf9ea33f4cd64b6ab5be23c0b71898279c6e7858076cc77f4bc956f83b35
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXBE74.tmp

        • Path C:\ProgramData\Package Cache\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\RCXBE74.tmp
        • Size 76KB
        • SHA256 808479d32c90cfeed4f48786ad6b65d3e0c51d0c219cafc2bb9c3ebafa477e58
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a1AE1.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a1AE1.bat
        • Size 902B
        • SHA256 2ba06269c6782de88e0fa9afaf8d2d7d5705a33bfe6dd8839bae63e26f483a7b
        • MD5 SHA1 SHA512 TLSH

        2026-08-23_76f67b8b4d70064db8fc93e852d81185_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\2026-08-23_76f67b8b4d70064db8fc93e852d81185_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe.exe
        • Size 271KB
        • SHA256 2088a75d8eab2078d66aaa68013ed0d7825a8e43a0f95fed47b15f8ae87267e6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 89KB
        • SHA256 2e6d598e4ac6429eb1ef49a361fad2f793f243423a0353e95a36802171db0516
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hosts

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

        memory/3148-17-0x0000000000400000-0x0000000000425000-memory.dmp

        memory/4380-19-0x0000000000400000-0x0000000000425000-memory.dmp

        memory/4380-1140-0x0000000000400000-0x0000000000425000-memory.dmp

        memory/4380-1264-0x0000000000400000-0x0000000000425000-memory.dmp

        memory/5460-10-0x0000000000400000-0x0000000000425000-memory.dmp