Analysis

  • max time kernel
    150s
  • max time network
    159s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/08/2026, 02:22

General

  • Target
    2026-08-02_f47121ed130abdae660451eae5f37d05_glassworm_icedid_mespinoza_njrat_ryuk.exe
  • Size 71.9MB
  • Sample260802-ctys4abh37
  • SHA256 010d858955bad6bacd72cbc2aa6460664337a7ae0ae05f0aa5e78524afe619e0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 25 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 1 IoCs
  • Looks up external IP address via web service 1 TTPs 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Executes a command shell one-liner 1 TTPs 2 IoCs

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

  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Kills process with taskkill 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-02_f47121ed130abdae660451eae5f37d05_glassworm_icedid_mespinoza_njrat_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-02_f47121ed130abdae660451eae5f37d05_glassworm_icedid_mespinoza_njrat_ryuk.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4388
    • C:\Windows\system32\cscript.exe
      cscript.exe //nologo C:\Users\Admin\AppData\Local\Temp\tmpf9w5slzbyb9.vbs
      2⤵
      • Executes a VBScript file via the Windows Script Host.
      • Suspicious use of WriteProcessMemory
      PID:4440
      • C:\Users\Admin\AppData\Local\Temp\2026-08-02_f47121ed130abdae660451eae5f37d05_glassworm_icedid_mespinoza_njrat_ryuk.exe
        "C:\Users\Admin\AppData\Local\Temp\2026-08-02_f47121ed130abdae660451eae5f37d05_glassworm_icedid_mespinoza_njrat_ryuk.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1476
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /s /c "powershell -NoProfile -Command "Expand-Archive -Path 'C:\Users\Admin\AppData\Local\Exastealer\jre.zip' -DestinationPath 'C:\Users\Admin\AppData\Local\Exastealer' -Force""
          4⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:4872
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -NoProfile -Command "Expand-Archive -Path 'C:\Users\Admin\AppData\Local\Exastealer\jre.zip' -DestinationPath 'C:\Users\Admin\AppData\Local\Exastealer' -Force"
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:5544
        • C:\Users\Admin\AppData\Local\Exastealer\bin\java.exe
          C:\Users\Admin\AppData\Local\Exastealer\bin\java.exe -noverify -jar C:\Users\Admin\AppData\Local\Exastealer\exastealer-obfuscated.jar
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:5912
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Exastealer" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Exastealer\bin\javaw.exe\" -jar \"C:\Users\Admin\AppData\Local\Exastealer\exastealer-obfuscated.jar\" com.exastealer.Main" /f
            5⤵
            • Executes a command shell one-liner
            • Suspicious use of WriteProcessMemory
            PID:5080
            • C:\Windows\system32\reg.exe
              reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Exastealer" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Exastealer\bin\javaw.exe\" -jar \"C:\Users\Admin\AppData\Local\Exastealer\exastealer-obfuscated.jar\" com.exastealer.Main" /f
              6⤵
              • Adds Run key to start application
              PID:1376
          • C:\Windows\SYSTEM32\taskkill.exe
            taskkill /F /IM "Discord.exe"
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:5452
          • C:\Windows\SYSTEM32\taskkill.exe
            taskkill /F /IM "DiscordCanary.exe"
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:3348
          • C:\Windows\SYSTEM32\taskkill.exe
            taskkill /F /IM "DiscordPTB.exe"
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:2592
          • C:\Windows\SYSTEM32\taskkill.exe
            taskkill /F /IM "DiscordDevelopment.exe"
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:3500
          • C:\Windows\SYSTEM32\taskkill.exe
            taskkill /F /IM firefox.exe 2>nul
            5⤵
            • Kills process with taskkill
            PID:4708
          • C:\Windows\SYSTEM32\taskkill.exe
            taskkill /F /IM firefox.exe 2>nul
            5⤵
            • Kills process with taskkill
            PID:5432
          • C:\Windows\SYSTEM32\taskkill.exe
            taskkill /F /IM firefox.exe 2>nul
            5⤵
            • Kills process with taskkill
            PID:6076
          • C:\Windows\SYSTEM32\taskkill.exe
            taskkill /F /IM firefox.exe 2>nul
            5⤵
            • Kills process with taskkill
            PID:4112
          • C:\Windows\SYSTEM32\taskkill.exe
            taskkill /F /IM firefox.exe 2>nul
            5⤵
            • Kills process with taskkill
            PID:820
  • C:\Users\Admin\AppData\Local\Exastealer\bin\javaw.exe
    "C:\Users\Admin\AppData\Local\Exastealer\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Local\Exastealer\exastealer-obfuscated.jar" com.exastealer.Main
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    PID:256

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        sys_cache_4f56827b.dll

        • Path C:\Users\Admin\AppData\Local\Common\3d39feeb\sys_cache_4f56827b.dll
        • Size 106KB
        • SHA256 af87d2b1bdd91979c77d2ebda387965579850d9c15d2856f550cc49e2947a64c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        VCRUNTIME140.dll

        • Path C:\Users\Admin\AppData\Local\Exastealer\bin\VCRUNTIME140.dll
        • Size 117KB
        • SHA256 052ad6a20d375957e82aa6a3c441ea548d89be0981516ca7eb306e063d5027f4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        awt.dll

        • Path C:\Users\Admin\AppData\Local\Exastealer\bin\awt.dll
        • Size 1.4MB
        • SHA256 6548654d13177cd4db22ca6963982e1a170ab337f0c6c73ae6feda105d677ae8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        java.dll

        • Path C:\Users\Admin\AppData\Local\Exastealer\bin\java.dll
        • Size 121KB
        • SHA256 c23149eed11d1afb4111d88ff35cf97e72f5212ad54930a8d2f976c6bca4898e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        java.exe

        • Path C:\Users\Admin\AppData\Local\Exastealer\bin\java.exe
        • Size 53KB
        • SHA256 8c6d49b508d222cda1e3765e66c74905dffa3312db4044a43547e5196a2e94c4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        javaw.exe

        • Path C:\Users\Admin\AppData\Local\Exastealer\bin\javaw.exe
        • Size 53KB
        • SHA256 2e40eb710dc9d8ae06e15d11331fcde819569654ca68c3866f6aedc1807ba804
        • MD5 SHA1 SHA512 SSDEEP TLSH

        jimage.dll

        • Path C:\Users\Admin\AppData\Local\Exastealer\bin\jimage.dll
        • Size 33KB
        • SHA256 38dea48088997cfee5526ed306f6219cc6b56c3cb22ad7546e66f7d474d6bde1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        jli.dll

        • Path C:\Users\Admin\AppData\Local\Exastealer\bin\jli.dll
        • Size 90KB
        • SHA256 0ef29bb01299efc5250193a9d7fc8aed0a28a7e942105ca52a6d94abd0bd9d24
        • MD5 SHA1 SHA512 SSDEEP TLSH

        msvcp140.dll

        • Path C:\Users\Admin\AppData\Local\Exastealer\bin\msvcp140.dll
        • Size 562KB
        • SHA256 b99eb28a471311113f5c4109cb3c463f39cfd9bdb3b07f706204dedddb4516a1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        net.dll

        • Path C:\Users\Admin\AppData\Local\Exastealer\bin\net.dll
        • Size 59KB
        • SHA256 050df83f9dac281595e0cbea9f68721d3d363a34bf28ac150706ca4400aba42a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nio.dll

        • Path C:\Users\Admin\AppData\Local\Exastealer\bin\nio.dll
        • Size 79KB
        • SHA256 7d73eae689125688dc7619e01cec28c9eec44cee71c18726aed087fa99ab31de
        • MD5 SHA1 SHA512 SSDEEP TLSH

        jvm.dll

        • Path C:\Users\Admin\AppData\Local\Exastealer\bin\server\jvm.dll
        • Size 12.8MB
        • SHA256 58bc68a22238a118b8bc7f067a83401e83a49fe1fc7df05f04434e2da029b73b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vcruntime140_1.dll

        • Path C:\Users\Admin\AppData\Local\Exastealer\bin\vcruntime140_1.dll
        • Size 48KB
        • SHA256 6a99bc0128e0c7d6cbbf615fcc26909565e17d4ca3451b97f8987f9c6acbc6c8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        zip.dll

        • Path C:\Users\Admin\AppData\Local\Exastealer\bin\zip.dll
        • Size 87KB
        • SHA256 03758468915b3c771c365c18d87b8f44f49523a978ea248a19df9225726b5641
        • MD5 SHA1 SHA512 SSDEEP TLSH

        logging.properties

        • Path C:\Users\Admin\AppData\Local\Exastealer\conf\logging.properties
        • Size 2KB
        • SHA256 b62d2733ab99556b108a1951d894c5a8d76b1ac7a00c02c388f9eb9be046c56f
        • MD5 SHA1 SHA512 TLSH

        net.properties

        • Path C:\Users\Admin\AppData\Local\Exastealer\conf\net.properties
        • Size 7KB
        • SHA256 56dd1f6095c189c1052f6baa32e457efc09de4832e19cdb82bb236dc8abfee9f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        java.security

        • Path C:\Users\Admin\AppData\Local\Exastealer\conf\security\java.security
        • Size 68KB
        • SHA256 c60112fdfcd0ad928c40bf7dd2b76b1e8e802185e261c7019393634aa33cd064
        • MD5 SHA1 SHA512 SSDEEP TLSH

        default_US_export.policy

        • Path C:\Users\Admin\AppData\Local\Exastealer\conf\security\policy\unlimited\default_US_export.policy
        • Size 146B
        • SHA256 758b930a526fc670ab7537f8c26321527050a31f5f42149a2dda623c56a0a1a9
        • MD5 SHA1 SHA512 TLSH

        default_local.policy

        • Path C:\Users\Admin\AppData\Local\Exastealer\conf\security\policy\unlimited\default_local.policy
        • Size 193B
        • SHA256 8d8a318e6d90dfd7e26612d2b6385aa704f686ca6134c551f8928418d92b851a
        • MD5 SHA1 SHA512 TLSH

        exastealer-obfuscated.jar

        • Path C:\Users\Admin\AppData\Local\Exastealer\exastealer-obfuscated.jar
        • Size 8.5MB
        • SHA256 bbb34dbca9f49e9df49ba51861980f724553ef6f168eb0e92471f8db69cba720
        • MD5 SHA1 SHA512 SSDEEP TLSH

        jre.zip

        • Path C:\Users\Admin\AppData\Local\Exastealer\jre.zip
        • Size 30.7MB
        • SHA256 dfcc0417ce37f36afed382fbdbf7f41b7c40bdd8ec3c77e76e556f8694c19cfa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        COPYRIGHT

        • Path C:\Users\Admin\AppData\Local\Exastealer\legal\java.instrument\COPYRIGHT
        • Size 35B
        • SHA256 7afb3a2dc57cb16223dddc970e0b464311e5311484c793abf9327a19ef629018
        • MD5 SHA1 SHA512

        LICENSE

        • Path C:\Users\Admin\AppData\Local\Exastealer\legal\java.instrument\LICENSE
        • Size 33B
        • SHA256 86e0516b888276a492b19f9a84f5a866ed36925fae1510b3a94a0b6213e69192
        • MD5 SHA1 SHA512

        jvm.cfg

        • Path C:\Users\Admin\AppData\Local\Exastealer\lib\jvm.cfg
        • Size 29B
        • SHA256 aa9efb969444c1484e29adecab55a122458090616e766b2f1230ef05bc3867e0
        • MD5 SHA1 SHA512

        modules

        • Path C:\Users\Admin\AppData\Local\Exastealer\lib\modules
        • Size 22.9MB
        • SHA256 aa41971e02345269903896451574f79f3441a7c93be6a7d68a1f39805db3e25b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        cacerts

        • Path C:\Users\Admin\AppData\Local\Exastealer\lib\security\cacerts
        • Size 129KB
        • SHA256 707312d3e8018928f53d108e4534f628cbbfad18196df1a2e72884300be1a69f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        tzdb.dat

        • Path C:\Users\Admin\AppData\Local\Exastealer\lib\tzdb.dat
        • Size 100KB
        • SHA256 7be2a3adf10ff841579629f7725b15f0db41e8856527ec72847b5477073a3d29
        • MD5 SHA1 SHA512 SSDEEP TLSH

        tzmappings

        • Path C:\Users\Admin\AppData\Local\Exastealer\lib\tzmappings
        • Size 21KB
        • SHA256 b41575b332809b37ad423bdca30c7c48cdef3d82f82fa9d534781a6f15d6a2ab
        • MD5 SHA1 SHA512 SSDEEP TLSH

        debug.log

        • Path C:\Users\Admin\AppData\Local\Temp\debug.log
        • Size 6KB
        • SHA256 0fdca90e3aedd6e604f389e698fb0530472ba8a6ade4e3d2107eb26c329ae87e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        sqlite3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\exastealer_libs\sqlite3.dll
        • Size 3.0MB
        • SHA256 a5d4b234ea18ffbff7d03dfa2329bff878288f4dc465dd73ec176d1a46659a39
        • MD5 SHA1 SHA512 SSDEEP TLSH

        jna10876674818741252458.dll

        • Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna10876674818741252458.dll
        • Size 248KB
        • SHA256 69c45175ecfd25af023f96ac0bb2c45e6a95e3ba8a5a50ee7969ccab14825c44
        • MD5 SHA1 SHA512 SSDEEP TLSH

        tmpf9w5slzbyb9.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\tmpf9w5slzbyb9.vbs
        • Size 241B
        • SHA256 7bceca1b46d7126d465b012eda637d365103dff16899af7fd65ec0515b2313bd
        • MD5 SHA1 SHA512 TLSH

        memory/4388-1-0x0000017B28100000-0x0000017B28101000-memory.dmp

        memory/4388-0-0x0000001CE2E00000-0x0000001CE2E01000-memory.dmp

        memory/5544-11-0x00000139F9A10000-0x00000139F9A32000-memory.dmp

        memory/5544-14-0x00000139F9EB0000-0x00000139F9ECE000-memory.dmp

        memory/5544-15-0x00000139F9ED0000-0x00000139F9F82000-memory.dmp

        memory/5544-16-0x00000139F9EA0000-0x00000139F9EAA000-memory.dmp

        memory/5544-17-0x00000139F9EB0000-0x00000139F9EC2000-memory.dmp

        memory/5544-18-0x00000139F9EA0000-0x00000139F9EAA000-memory.dmp

        memory/5912-580-0x00000155AFDD0000-0x00000155AFDE0000-memory.dmp