Analysis

  • max time kernel
    146s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/05/2024, 02:07

General

  • Target
    dc6aeb1f8d342bc7863a71083222cfa544b340c181e2be87dd39f5d25aac12e4.js
  • Size 352KB
  • Sample240509-cj475acf2z
  • SHA256 dc6aeb1f8d342bc7863a71083222cfa544b340c181e2be87dd39f5d25aac12e4
  • 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 1 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\dc6aeb1f8d342bc7863a71083222cfa544b340c181e2be87dd39f5d25aac12e4.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4760
    • 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\zgsmcfsghm.txt"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2220
      • 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:1384
      • C:\Program Files\Java\jre-1.8\bin\java.exe
        "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\zgsmcfsghm.txt"
        3⤵
        • Drops startup file
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:4452
        • C:\Windows\SYSTEM32\cmd.exe
          cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\zgsmcfsghm.txt"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3172
          • C:\Windows\system32\schtasks.exe
            schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\zgsmcfsghm.txt"
            5⤵
            • Creates scheduled task(s)
            PID:2316
        • 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\zgsmcfsghm.txt"
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2228
          • 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:2520
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:3148
          • 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:4224
            • 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:3272
          • 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:5076
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
              6⤵
                PID:3196
            • 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:2800
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
                6⤵
                  PID:452

      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 b64251a73c4b1ba5d162f3d35070d072b3112d55e9437f0393c2bd43cd2d0776
            • MD5 SHA1 SHA512

            jna5407171094882018932.dll

            • Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna5407171094882018932.dll
            • Size 241KB
            • SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
            • MD5 SHA1 SHA512 SSDEEP

            83aa4cc77f591dfc2374580bbd95f6ba_468f6343-c0e6-4931-9703-30c6539573cb

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2539840389-1261165778-1087677076-1000\83aa4cc77f591dfc2374580bbd95f6ba_468f6343-c0e6-4931-9703-30c6539573cb
            • Size 45B
            • SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
            • MD5 SHA1 SHA512

            zgsmcfsghm.txt

            • Path C:\Users\Admin\AppData\Roaming\zgsmcfsghm.txt
            • Size 164KB
            • SHA256 c97d01edc6e28bb1a808951f917290831bd806f5155affe62fb042bbea235bf1
            • 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/2220-105-0x000002C98E580000-0x000002C98E590000-memory.dmp

            memory/2220-80-0x000002C98E440000-0x000002C98E450000-memory.dmp

            memory/2220-121-0x000002C98E5B0000-0x000002C98E5C0000-memory.dmp

            memory/2220-29-0x000002C98E410000-0x000002C98E420000-memory.dmp

            memory/2220-28-0x000002C98E400000-0x000002C98E410000-memory.dmp

            memory/2220-26-0x000002C98C960000-0x000002C98C961000-memory.dmp

            memory/2220-36-0x000002C98E430000-0x000002C98E440000-memory.dmp

            memory/2220-38-0x000002C98E440000-0x000002C98E450000-memory.dmp

            memory/2220-40-0x000002C98E450000-0x000002C98E460000-memory.dmp

            memory/2220-43-0x000002C98E470000-0x000002C98E480000-memory.dmp

            memory/2220-42-0x000002C98E460000-0x000002C98E470000-memory.dmp

            memory/2220-47-0x000002C98E140000-0x000002C98E3B0000-memory.dmp

            memory/2220-50-0x000002C98E490000-0x000002C98E4A0000-memory.dmp

            memory/2220-51-0x000002C98E3B0000-0x000002C98E3C0000-memory.dmp

            memory/2220-55-0x000002C98E4B0000-0x000002C98E4C0000-memory.dmp

            memory/2220-54-0x000002C98E3D0000-0x000002C98E3E0000-memory.dmp

            memory/2220-53-0x000002C98E3C0000-0x000002C98E3D0000-memory.dmp

            memory/2220-49-0x000002C98E4A0000-0x000002C98E4B0000-memory.dmp

            memory/2220-48-0x000002C98E480000-0x000002C98E490000-memory.dmp

            memory/2220-59-0x000002C98E3E0000-0x000002C98E3F0000-memory.dmp

            memory/2220-60-0x000002C98E4C0000-0x000002C98E4D0000-memory.dmp

            memory/2220-64-0x000002C98E4D0000-0x000002C98E4E0000-memory.dmp

            memory/2220-63-0x000002C98E3F0000-0x000002C98E400000-memory.dmp

            memory/2220-62-0x000002C98C960000-0x000002C98C961000-memory.dmp

            memory/2220-71-0x000002C98E410000-0x000002C98E420000-memory.dmp

            memory/2220-74-0x000002C98E500000-0x000002C98E510000-memory.dmp

            memory/2220-73-0x000002C98E4F0000-0x000002C98E500000-memory.dmp

            memory/2220-72-0x000002C98E4E0000-0x000002C98E4F0000-memory.dmp

            memory/2220-70-0x000002C98E400000-0x000002C98E410000-memory.dmp

            memory/2220-78-0x000002C98E510000-0x000002C98E520000-memory.dmp

            memory/2220-118-0x000002C98E4E0000-0x000002C98E4F0000-memory.dmp

            memory/2220-79-0x000002C98E520000-0x000002C98E530000-memory.dmp

            memory/2220-77-0x000002C98E430000-0x000002C98E440000-memory.dmp

            memory/2220-83-0x000002C98E450000-0x000002C98E460000-memory.dmp

            memory/2220-84-0x000002C98E530000-0x000002C98E540000-memory.dmp

            memory/2220-87-0x000002C98E470000-0x000002C98E480000-memory.dmp

            memory/2220-89-0x000002C98E550000-0x000002C98E560000-memory.dmp

            memory/2220-88-0x000002C98E540000-0x000002C98E550000-memory.dmp

            memory/2220-86-0x000002C98E460000-0x000002C98E470000-memory.dmp

            memory/2220-94-0x000002C98C960000-0x000002C98C961000-memory.dmp

            memory/2220-96-0x000002C98E480000-0x000002C98E490000-memory.dmp

            memory/2220-97-0x000002C98E4A0000-0x000002C98E4B0000-memory.dmp

            memory/2220-113-0x000002C98C960000-0x000002C98C961000-memory.dmp

            memory/2220-101-0x000002C98E570000-0x000002C98E580000-memory.dmp

            memory/2220-100-0x000002C98E490000-0x000002C98E4A0000-memory.dmp

            memory/2220-102-0x000002C98C960000-0x000002C98C961000-memory.dmp

            memory/2220-104-0x000002C98E4B0000-0x000002C98E4C0000-memory.dmp

            memory/2220-18-0x000002C98E3C0000-0x000002C98E3D0000-memory.dmp

            memory/2220-108-0x000002C98E4C0000-0x000002C98E4D0000-memory.dmp

            memory/2220-109-0x000002C98E590000-0x000002C98E5A0000-memory.dmp

            memory/2220-111-0x000002C98E4D0000-0x000002C98E4E0000-memory.dmp

            memory/2220-112-0x000002C98E5A0000-0x000002C98E5B0000-memory.dmp

            memory/2220-98-0x000002C98E560000-0x000002C98E570000-memory.dmp

            memory/2220-21-0x000002C98E3E0000-0x000002C98E3F0000-memory.dmp

            memory/2220-23-0x000002C98E3F0000-0x000002C98E400000-memory.dmp

            memory/2220-120-0x000002C98E500000-0x000002C98E510000-memory.dmp

            memory/2220-119-0x000002C98E4F0000-0x000002C98E500000-memory.dmp

            memory/2220-123-0x000002C98E510000-0x000002C98E520000-memory.dmp

            memory/2220-124-0x000002C98E5C0000-0x000002C98E5D0000-memory.dmp

            memory/2220-126-0x000002C98E520000-0x000002C98E530000-memory.dmp

            memory/2220-127-0x000002C98E5D0000-0x000002C98E5E0000-memory.dmp

            memory/2220-129-0x000002C98E530000-0x000002C98E540000-memory.dmp

            memory/2220-130-0x000002C98E5E0000-0x000002C98E5F0000-memory.dmp

            memory/2220-132-0x000002C98E540000-0x000002C98E550000-memory.dmp

            memory/2220-134-0x000002C98E5F0000-0x000002C98E600000-memory.dmp

            memory/2220-133-0x000002C98E550000-0x000002C98E560000-memory.dmp

            memory/2220-139-0x000002C98C960000-0x000002C98C961000-memory.dmp

            memory/2220-142-0x000002C98C960000-0x000002C98C961000-memory.dmp

            memory/2220-143-0x000002C98E560000-0x000002C98E570000-memory.dmp

            memory/2220-145-0x000002C98C960000-0x000002C98C961000-memory.dmp

            memory/2220-154-0x000002C98E440000-0x000002C98E450000-memory.dmp

            memory/2220-159-0x000002C98E4A0000-0x000002C98E4B0000-memory.dmp

            memory/2220-158-0x000002C98E480000-0x000002C98E490000-memory.dmp

            memory/2220-157-0x000002C98E470000-0x000002C98E480000-memory.dmp

            memory/2220-156-0x000002C98E460000-0x000002C98E470000-memory.dmp

            memory/2220-155-0x000002C98E450000-0x000002C98E460000-memory.dmp

            memory/2220-153-0x000002C98E410000-0x000002C98E420000-memory.dmp

            memory/2220-180-0x000002C98E5F0000-0x000002C98E600000-memory.dmp

            memory/2220-179-0x000002C98E5E0000-0x000002C98E5F0000-memory.dmp

            memory/2220-178-0x000002C98E5D0000-0x000002C98E5E0000-memory.dmp

            memory/2220-177-0x000002C98E5C0000-0x000002C98E5D0000-memory.dmp

            memory/2220-176-0x000002C98E5B0000-0x000002C98E5C0000-memory.dmp

            memory/2220-175-0x000002C98E5A0000-0x000002C98E5B0000-memory.dmp

            memory/2220-174-0x000002C98E590000-0x000002C98E5A0000-memory.dmp

            memory/2220-173-0x000002C98E580000-0x000002C98E590000-memory.dmp

            memory/2220-172-0x000002C98E570000-0x000002C98E580000-memory.dmp

            memory/2220-171-0x000002C98E560000-0x000002C98E570000-memory.dmp

            memory/2220-170-0x000002C98E430000-0x000002C98E440000-memory.dmp

            memory/2220-169-0x000002C98E4E0000-0x000002C98E4F0000-memory.dmp

            memory/2220-168-0x000002C98E4D0000-0x000002C98E4E0000-memory.dmp

            memory/2220-167-0x000002C98E4C0000-0x000002C98E4D0000-memory.dmp

            memory/2220-166-0x000002C98E4B0000-0x000002C98E4C0000-memory.dmp

            memory/2220-165-0x000002C98E140000-0x000002C98E3B0000-memory.dmp

            memory/2220-152-0x000002C98E400000-0x000002C98E410000-memory.dmp

            memory/2220-151-0x000002C98E3F0000-0x000002C98E400000-memory.dmp

            memory/2220-150-0x000002C98E3E0000-0x000002C98E3F0000-memory.dmp

            memory/2220-149-0x000002C98E3D0000-0x000002C98E3E0000-memory.dmp

            memory/2220-148-0x000002C98E3C0000-0x000002C98E3D0000-memory.dmp

            memory/2220-147-0x000002C98E3B0000-0x000002C98E3C0000-memory.dmp

            memory/2220-146-0x000002C98E490000-0x000002C98E4A0000-memory.dmp

            memory/2220-4-0x000002C98E140000-0x000002C98E3B0000-memory.dmp

            memory/2220-19-0x000002C98E3D0000-0x000002C98E3E0000-memory.dmp

            memory/2220-16-0x000002C98E3B0000-0x000002C98E3C0000-memory.dmp

            memory/2228-237-0x0000021C1D1C0000-0x0000021C1D1C1000-memory.dmp

            memory/2228-252-0x0000021C1D1C0000-0x0000021C1D1C1000-memory.dmp

            memory/4452-200-0x00000247C2810000-0x00000247C2811000-memory.dmp