Analysis

  • max time kernel
    149s
  • max time network
    93s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    07/05/2026, 02:11

General

  • Target
    2026-05-07_80a5a61ed8ca1a62294a7af735f18ffd_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe
  • Size 1.3MB
  • Sample260507-cmnpjsdy2w
  • SHA256 e168a1ef8d1ff59c9d638cd97c67e64eea2a2e04351ec47a4733a65e4fbcf471
  • 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 3 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-07_80a5a61ed8ca1a62294a7af735f18ffd_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-07_80a5a61ed8ca1a62294a7af735f18ffd_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:2572
    • C:\Windows\SysWOW64\net.exe
      net stop "Kingsoft AntiVirus Service"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5072
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4584
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$aB7.bat
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:6012
      • C:\Users\Admin\AppData\Local\Temp\2026-05-07_80a5a61ed8ca1a62294a7af735f18ffd_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe
        "C:\Users\Admin\AppData\Local\Temp\2026-05-07_80a5a61ed8ca1a62294a7af735f18ffd_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe"
        3⤵
        • Executes dropped EXE
        PID:1916
    • 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:1548
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2132
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3996
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • 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"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:5212
  • 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:3132

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        RCX99DF.tmp

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RCX99DF.tmp
        • Size 156KB
        • SHA256 5f8e54efec937711b90eaf881c41fe778eeac85d1fbd24275895b2c8a2e07865
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX9BA8.tmp

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\RCX9BA8.tmp
        • Size 94KB
        • SHA256 b186ba7e865604ef0433614800e654bc57e8ed8a1050d1309ba6f7dd005443c1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX9E2A.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\RCX9E2A.tmp
        • Size 103KB
        • SHA256 58f0fceccd2b180e9f1e78fee4f9b8691f740e9fc5af2c12d4355f6845fd297c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX9E7B.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\RCX9E7B.tmp
        • Size 91KB
        • SHA256 391d0ac21de97adc0f4bc834ad3900a2f3e9ff51f8e14b7979f56b16490a6cb3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX9CFA.tmp

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\RCX9CFA.tmp
        • Size 118KB
        • SHA256 1258060dc2832a856233f3a6d07eb1c12befaf2a29fab42a43a99896d452ba0b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXA002.tmp

        • Path C:\Program Files (x86)\Mozilla Maintenance Service\RCXA002.tmp
        • Size 100KB
        • SHA256 2f67b2e20f4860f4e1166281e1727a491b54eed9487a9e6a458cf4b728f767c0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX8E14.tmp

        • Path C:\Program Files\7-Zip\RCX8E14.tmp
        • Size 91KB
        • SHA256 86203aa17e0d0c597a4e352a04d72970c7312a1acfb39939f94cb7a82719560b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CompressExit.exe.Exe

        • Path C:\Program Files\CompressExit.exe.Exe
        • Size 1.1MB
        • SHA256 8b71991763606dd21de3f93724b9d89fca799bf4a147f6fbd10f38807ffba5e4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX8F34.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX8F34.tmp
        • Size 92KB
        • SHA256 5c91e0e6ccda57e069417422c5156634a5ff5bf4d513651e363c4c3cd0cbfa84
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX91C9.tmp

        • Path C:\Program Files\Mozilla Firefox\RCX91C9.tmp
        • Size 91KB
        • SHA256 0eaad16c57698eb2ab84901d79bc3c4c197922baef618c615f0be79e03a4233a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$aB7.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$aB7.bat
        • Size 900B
        • SHA256 13f2a7e57669419a251a5f71e4ff1c3664247b48f17d2d9ddf6bba0e7bbaf60a
        • MD5 SHA1 SHA512 TLSH

        2026-05-07_80a5a61ed8ca1a62294a7af735f18ffd_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\2026-05-07_80a5a61ed8ca1a62294a7af735f18ffd_cobalt-strike_elex_hijackloader_icedid_njrat_vidar.exe.exe
        • Size 1.2MB
        • SHA256 9f7f04ce2bae3e76e41ddc706f9c1cc35405a1d21c488fe4f81eb89fdff51907
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 93KB
        • SHA256 791b8416bc35cd704ed0d7450e3c8534ab0c50a7d946632614285e6302761e99
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hosts

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

        memory/1548-19-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/1548-865-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/1548-1258-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2572-8-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/3132-16-0x0000000000400000-0x0000000000429000-memory.dmp