Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/06/2024, 01:59

General

  • Target
    f258e1a04ad4cc71b7dd2c4f88b7534c0ca5f15163d6c76dfdb3a82a5d1abf02.js
  • Size 776KB
  • Sample240601-cevg5aef99
  • SHA256 f258e1a04ad4cc71b7dd2c4f88b7534c0ca5f15163d6c76dfdb3a82a5d1abf02
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • STRRAT

    STRRAT is a remote access tool than can steal credentials and log keystrokes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\f258e1a04ad4cc71b7dd2c4f88b7534c0ca5f15163d6c76dfdb3a82a5d1abf02.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1608
    • C:\Program Files\Java\jre-1.8\bin\javaw.exe
      "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\hjcfpkvsov.txt"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3700
      • C:\Windows\system32\icacls.exe
        C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
        3⤵
        • Modifies file permissions
        PID:1972
      • C:\Program Files\Java\jre-1.8\bin\java.exe
        "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\hjcfpkvsov.txt"
        3⤵
        • Drops startup file
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1592
        • C:\Windows\SYSTEM32\cmd.exe
          cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\hjcfpkvsov.txt"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:212
          • C:\Windows\system32\schtasks.exe
            schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\hjcfpkvsov.txt"
            5⤵
            • Creates scheduled task(s)
            PID:648
        • C:\Program Files\Java\jre-1.8\bin\java.exe
          "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\hjcfpkvsov.txt"
          4⤵
          • Loads dropped DLL
          • Adds Run key to start application
          • Suspicious use of WriteProcessMemory
          PID:488
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4408
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1520
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2844
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:3276
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1884
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
              6⤵
                PID:3832
            • C:\Windows\SYSTEM32\cmd.exe
              cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1516
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
                6⤵
                  PID:4984

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            3903daac9bc4a3b7.timestamp

            • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
            • Size 46B
            • SHA256 40aa24123cc7b4061c0b8220a27eb390da7d7623ad0efa47c6cd0a5e22860675
            • MD5 SHA1 SHA512

            jna6813375127402381061.dll

            • Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna6813375127402381061.dll
            • Size 241KB
            • SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
            • MD5 SHA1 SHA512 SSDEEP

            83aa4cc77f591dfc2374580bbd95f6ba_41e50f4a-4a76-42e1-a3df-51306e426307

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-540404634-651139247-2967210625-1000\83aa4cc77f591dfc2374580bbd95f6ba_41e50f4a-4a76-42e1-a3df-51306e426307
            • Size 45B
            • SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
            • MD5 SHA1 SHA512

            hjcfpkvsov.txt

            • Path C:\Users\Admin\AppData\Roaming\hjcfpkvsov.txt
            • Size 92KB
            • SHA256 e14f1c7e11a1f1ddd570d605e4204a694a7370d603c1b1ca157e505f180ccc48
            • MD5 SHA1 SHA512 SSDEEP

            jna-5.5.0.jar

            • Path C:\Users\Admin\lib\jna-5.5.0.jar
            • Size 1.4MB
            • SHA256 b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e
            • MD5 SHA1 SHA512 SSDEEP

            jna-platform-5.5.0.jar

            • Path C:\Users\Admin\lib\jna-platform-5.5.0.jar
            • Size 2.6MB
            • SHA256 24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5
            • MD5 SHA1 SHA512 SSDEEP

            sqlite-jdbc-3.14.2.1.jar

            • Path C:\Users\Admin\lib\sqlite-jdbc-3.14.2.1.jar
            • Size 4.1MB
            • SHA256 2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491
            • MD5 SHA1 SHA512 SSDEEP

            system-hook-3.5.jar

            • Path C:\Users\Admin\lib\system-hook-3.5.jar
            • Size 772KB
            • SHA256 2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609
            • MD5 SHA1 SHA512 SSDEEP

            memory/488-266-0x00000274B5CA0000-0x00000274B5CA1000-memory.dmp

            memory/488-257-0x00000274B5CA0000-0x00000274B5CA1000-memory.dmp

            memory/1592-208-0x0000028CE1D40000-0x0000028CE1D41000-memory.dmp

            memory/1592-224-0x0000028CE1D40000-0x0000028CE1D41000-memory.dmp

            memory/3700-105-0x0000025BCB900000-0x0000025BCB910000-memory.dmp

            memory/3700-71-0x0000025BCB880000-0x0000025BCB890000-memory.dmp

            memory/3700-36-0x0000025BCB890000-0x0000025BCB8A0000-memory.dmp

            memory/3700-35-0x0000025BCB880000-0x0000025BCB890000-memory.dmp

            memory/3700-39-0x0000025BCB8A0000-0x0000025BCB8B0000-memory.dmp

            memory/3700-42-0x0000025BCB5A0000-0x0000025BCB810000-memory.dmp

            memory/3700-46-0x0000025BCB810000-0x0000025BCB820000-memory.dmp

            memory/3700-45-0x0000025BCB8C0000-0x0000025BCB8D0000-memory.dmp

            memory/3700-44-0x0000025BCB8D0000-0x0000025BCB8E0000-memory.dmp

            memory/3700-123-0x0000025BCB940000-0x0000025BCB950000-memory.dmp

            memory/3700-59-0x0000025BCB910000-0x0000025BCB920000-memory.dmp

            memory/3700-58-0x0000025BCB850000-0x0000025BCB860000-memory.dmp

            memory/3700-63-0x0000025BCB920000-0x0000025BCB930000-memory.dmp

            memory/3700-62-0x0000025BCB870000-0x0000025BCB880000-memory.dmp

            memory/3700-61-0x0000025BCB860000-0x0000025BCB870000-memory.dmp

            memory/3700-55-0x0000025BCB900000-0x0000025BCB910000-memory.dmp

            memory/3700-54-0x0000025BCB840000-0x0000025BCB850000-memory.dmp

            memory/3700-53-0x0000025BCB830000-0x0000025BCB840000-memory.dmp

            memory/3700-51-0x0000025BCB8F0000-0x0000025BCB900000-memory.dmp

            memory/3700-50-0x0000025BCB8E0000-0x0000025BCB8F0000-memory.dmp

            memory/3700-49-0x0000025BCB820000-0x0000025BCB830000-memory.dmp

            memory/3700-66-0x0000025BCB930000-0x0000025BCB940000-memory.dmp

            memory/3700-73-0x0000025BCB940000-0x0000025BCB950000-memory.dmp

            memory/3700-72-0x0000025BCB890000-0x0000025BCB8A0000-memory.dmp

            memory/3700-124-0x0000025BCBA20000-0x0000025BCBA30000-memory.dmp

            memory/3700-78-0x0000025BCB960000-0x0000025BCB970000-memory.dmp

            memory/3700-80-0x0000025BCB950000-0x0000025BCB960000-memory.dmp

            memory/3700-79-0x0000025BCB970000-0x0000025BCB980000-memory.dmp

            memory/3700-84-0x0000025BCB990000-0x0000025BCB9A0000-memory.dmp

            memory/3700-83-0x0000025BCB980000-0x0000025BCB990000-memory.dmp

            memory/3700-82-0x0000025BCB8A0000-0x0000025BCB8B0000-memory.dmp

            memory/3700-90-0x0000025BCB9B0000-0x0000025BCB9C0000-memory.dmp

            memory/3700-89-0x0000025BCB9A0000-0x0000025BCB9B0000-memory.dmp

            memory/3700-88-0x0000025BCB8D0000-0x0000025BCB8E0000-memory.dmp

            memory/3700-87-0x0000025BCB8B0000-0x0000025BCB8C0000-memory.dmp

            memory/3700-96-0x0000025BC9D10000-0x0000025BC9D11000-memory.dmp

            memory/3700-98-0x0000025BCB9C0000-0x0000025BCB9D0000-memory.dmp

            memory/3700-97-0x0000025BCB8C0000-0x0000025BCB8D0000-memory.dmp

            memory/3700-125-0x0000025BCBA30000-0x0000025BCBA40000-memory.dmp

            memory/3700-101-0x0000025BCB8F0000-0x0000025BCB900000-memory.dmp

            memory/3700-102-0x0000025BCB9D0000-0x0000025BCB9E0000-memory.dmp

            memory/3700-103-0x0000025BC9D10000-0x0000025BC9D11000-memory.dmp

            memory/3700-106-0x0000025BCB9E0000-0x0000025BCB9F0000-memory.dmp

            memory/3700-31-0x0000025BC9D10000-0x0000025BC9D11000-memory.dmp

            memory/3700-109-0x0000025BCB9F0000-0x0000025BCBA00000-memory.dmp

            memory/3700-108-0x0000025BCB910000-0x0000025BCB920000-memory.dmp

            memory/3700-114-0x0000025BCB930000-0x0000025BCB940000-memory.dmp

            memory/3700-115-0x0000025BCBA10000-0x0000025BCBA20000-memory.dmp

            memory/3700-112-0x0000025BCB920000-0x0000025BCB930000-memory.dmp

            memory/3700-113-0x0000025BCBA00000-0x0000025BCBA10000-memory.dmp

            memory/3700-100-0x0000025BCB8E0000-0x0000025BCB8F0000-memory.dmp

            memory/3700-34-0x0000025BCB870000-0x0000025BCB880000-memory.dmp

            memory/3700-43-0x0000025BCB8B0000-0x0000025BCB8C0000-memory.dmp

            memory/3700-119-0x0000025BC9D10000-0x0000025BC9D11000-memory.dmp

            memory/3700-130-0x0000025BCBA40000-0x0000025BCBA50000-memory.dmp

            memory/3700-129-0x0000025BCB950000-0x0000025BCB960000-memory.dmp

            memory/3700-128-0x0000025BCB970000-0x0000025BCB980000-memory.dmp

            memory/3700-134-0x0000025BCBA50000-0x0000025BCBA60000-memory.dmp

            memory/3700-133-0x0000025BCB990000-0x0000025BCB9A0000-memory.dmp

            memory/3700-127-0x0000025BCB960000-0x0000025BCB970000-memory.dmp

            memory/3700-132-0x0000025BCB980000-0x0000025BCB990000-memory.dmp

            memory/3700-140-0x0000025BCBA60000-0x0000025BCBA70000-memory.dmp

            memory/3700-139-0x0000025BCB9B0000-0x0000025BCB9C0000-memory.dmp

            memory/3700-138-0x0000025BCB9A0000-0x0000025BCB9B0000-memory.dmp

            memory/3700-145-0x0000025BC9D10000-0x0000025BC9D11000-memory.dmp

            memory/3700-147-0x0000025BCB9C0000-0x0000025BCB9D0000-memory.dmp

            memory/3700-153-0x0000025BCB830000-0x0000025BCB840000-memory.dmp

            memory/3700-152-0x0000025BCB820000-0x0000025BCB830000-memory.dmp

            memory/3700-151-0x0000025BCB810000-0x0000025BCB820000-memory.dmp

            memory/3700-150-0x0000025BCB8C0000-0x0000025BCB8D0000-memory.dmp

            memory/3700-163-0x0000025BCB5A0000-0x0000025BCB810000-memory.dmp

            memory/3700-165-0x0000025BCB8F0000-0x0000025BCB900000-memory.dmp

            memory/3700-177-0x0000025BCBA60000-0x0000025BCBA70000-memory.dmp

            memory/3700-176-0x0000025BCBA50000-0x0000025BCBA60000-memory.dmp

            memory/3700-175-0x0000025BCBA40000-0x0000025BCBA50000-memory.dmp

            memory/3700-174-0x0000025BCBA30000-0x0000025BCBA40000-memory.dmp

            memory/3700-173-0x0000025BCBA20000-0x0000025BCBA30000-memory.dmp

            memory/3700-172-0x0000025BCBA00000-0x0000025BCBA10000-memory.dmp

            memory/3700-171-0x0000025BCBA10000-0x0000025BCBA20000-memory.dmp

            memory/3700-170-0x0000025BCB9F0000-0x0000025BCBA00000-memory.dmp

            memory/3700-169-0x0000025BCB9E0000-0x0000025BCB9F0000-memory.dmp

            memory/3700-168-0x0000025BCB9D0000-0x0000025BCB9E0000-memory.dmp

            memory/3700-167-0x0000025BCB940000-0x0000025BCB950000-memory.dmp

            memory/3700-166-0x0000025BCB900000-0x0000025BCB910000-memory.dmp

            memory/3700-164-0x0000025BCB8E0000-0x0000025BCB8F0000-memory.dmp

            memory/3700-162-0x0000025BCB8D0000-0x0000025BCB8E0000-memory.dmp

            memory/3700-161-0x0000025BCB8B0000-0x0000025BCB8C0000-memory.dmp

            memory/3700-160-0x0000025BCB8A0000-0x0000025BCB8B0000-memory.dmp

            memory/3700-159-0x0000025BCB890000-0x0000025BCB8A0000-memory.dmp

            memory/3700-158-0x0000025BCB870000-0x0000025BCB880000-memory.dmp

            memory/3700-157-0x0000025BCB880000-0x0000025BCB890000-memory.dmp

            memory/3700-156-0x0000025BCB860000-0x0000025BCB870000-memory.dmp

            memory/3700-155-0x0000025BCB850000-0x0000025BCB860000-memory.dmp

            memory/3700-154-0x0000025BCB840000-0x0000025BCB850000-memory.dmp

            memory/3700-149-0x0000025BC9D10000-0x0000025BC9D11000-memory.dmp

            memory/3700-26-0x0000025BCB860000-0x0000025BCB870000-memory.dmp

            memory/3700-23-0x0000025BCB850000-0x0000025BCB860000-memory.dmp

            memory/3700-20-0x0000025BCB830000-0x0000025BCB840000-memory.dmp

            memory/3700-21-0x0000025BCB840000-0x0000025BCB850000-memory.dmp

            memory/3700-17-0x0000025BCB820000-0x0000025BCB830000-memory.dmp

            memory/3700-15-0x0000025BCB810000-0x0000025BCB820000-memory.dmp

            memory/3700-4-0x0000025BCB5A0000-0x0000025BCB810000-memory.dmp