Analysis

  • max time kernel
    149s
  • max time network
    93s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/06/2026, 04:28

General

  • Target
    2026-06-04_947267e552c002bfbc8af8a7ed14d54f_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe
  • Size 493KB
  • Sample260604-e3x92aaz6r
  • SHA256 0c7eb739c9c7f37430078b2272edda882a074996580b5fc2ab73a93168e695ed
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Renames multiple (257) 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
  • 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\2026-06-04_947267e552c002bfbc8af8a7ed14d54f_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-04_947267e552c002bfbc8af8a7ed14d54f_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:1888
    • C:\Windows\SysWOW64\net.exe
      net stop "Kingsoft AntiVirus Service"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1616
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4892
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a5186.bat
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3476
    • 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:2212
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4028
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3584
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4436
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4024
  • 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:4044

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        RCXEAE1.tmp

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\RCXEAE1.tmp
        • Size 94KB
        • SHA256 dda945d9eee98c1b046f27e22725b56809ffa8dab1232d874181f0a4a18df3c9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXEC84.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\132.0.2957.140\RCXEC84.tmp
        • Size 103KB
        • SHA256 1bb7f0e744d58eb3d9af07d4a390fd8dc3188535c21c367c359708a0eef2cc43
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXED47.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\RCXED47.tmp
        • Size 91KB
        • SHA256 50e8837e809954307bad2d969fba414775c29441f7841d385429e7ebbb9a7255
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXEC14.tmp

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\RCXEC14.tmp
        • Size 118KB
        • SHA256 012a812689140fe26e2a9d38d858c01ef95dfe0d0a25d88fb6c073c9a440224d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXEE12.tmp

        • Path C:\Program Files (x86)\Mozilla Maintenance Service\RCXEE12.tmp
        • Size 100KB
        • SHA256 98b914476043a60a133695230c7a58a8b98e998782fc3e05359feffdf1b0aa1a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe.Exe

        • Path C:\Program Files\7-Zip\7z.exe.Exe
        • Size 642KB
        • SHA256 624f145be11bc4c2ac7b20273432746089312a6a381b9528a87e80ff3cab4756
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXDEE4.tmp

        • Path C:\Program Files\7-Zip\RCXDEE4.tmp
        • Size 91KB
        • SHA256 8e1d0351717a214cb777ca055b2d7655bb31f3f82512296abc165525e19aac0a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OfficeClickToRun.exe.Exe

        • Path C:\Program Files\Microsoft Office 15\ClientX64\OfficeClickToRun.exe.Exe
        • Size 4.3MB
        • SHA256 ce328b90405313e60a84b482c9e04896f2481d218d5231b58290a9dee58f0b9c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXE23B.tmp

        • Path C:\Program Files\Mozilla Firefox\RCXE23B.tmp
        • Size 91KB
        • SHA256 152c274b6bf8e385309d052253a5695168c6bb4adda5c940e4ea983cc994b803
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vlc.exe.Exe

        • Path C:\Program Files\VideoLAN\VLC\vlc.exe.Exe
        • Size 1.0MB
        • SHA256 89b96f0048749c65d650933b87412b654cdd98a3074426a9897737cd18a4984e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXF297.tmp

        • Path C:\ProgramData\Adobe\Setup\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\RCXF297.tmp
        • Size 92KB
        • SHA256 4888f00138c752b0da8c6eaa52df19e984421172dc606b78458793d9b4ac3569
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a5186.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a5186.bat
        • Size 902B
        • SHA256 6d22603199d4d1cd1fb25326bcfad4e757d3a3c31c5df9c607c36ac1d8f70721
        • MD5 SHA1 SHA512 TLSH

        2026-06-04_947267e552c002bfbc8af8a7ed14d54f_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\2026-06-04_947267e552c002bfbc8af8a7ed14d54f_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe.exe
        • Size 400KB
        • SHA256 e56fc414569ac2ec2720d4fa1e53e20e1fd73381b80dbfd80050142157da2cad
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 93KB
        • SHA256 5ad2eead96b4195378093032e3499905571240b7a2f65bffc06f9068f1056737
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hosts

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

        memory/1888-0-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/1888-13-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2212-9-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2212-1137-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2212-22-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2212-1261-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/4044-19-0x0000000000400000-0x0000000000429000-memory.dmp