Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/05/2024, 08:30

General

  • Target
    IMG_20240404_0002.js
  • Size 348KB
  • Sample240510-kd568sch2t
  • SHA256 5d4749e3e2a6b7dc78ee9e03d3bfa7e82a7a8d90ba04142fdae217248d24fe38
  • 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\IMG_20240404_0002.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2836
    • 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\udyunbw.txt"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1020
      • 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:2880
      • C:\Program Files\Java\jre-1.8\bin\java.exe
        "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\udyunbw.txt"
        3⤵
        • Drops startup file
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:4308
        • C:\Windows\SYSTEM32\cmd.exe
          cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\udyunbw.txt"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1556
          • C:\Windows\system32\schtasks.exe
            schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\udyunbw.txt"
            5⤵
            • Creates scheduled task(s)
            PID:4696
        • 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\udyunbw.txt"
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:3992
          • 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:2540
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:4296
          • 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:4956
            • 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:1416
          • 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:3460
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
              6⤵
                PID:1604
            • 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:3524
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
                6⤵
                  PID:3948

      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 ab0f6c9d019f361a8f094933a04a0e7da09b2a0c5d6dc3b43f373d75ccac4c3d
            • MD5 SHA1 SHA512

            jna6365330914536193848.dll

            • Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna6365330914536193848.dll
            • Size 241KB
            • SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
            • MD5 SHA1 SHA512 SSDEEP

            83aa4cc77f591dfc2374580bbd95f6ba_215f2dba-ef84-4dd1-b127-5f514a0c233b

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3906287020-2915474608-1755617787-1000\83aa4cc77f591dfc2374580bbd95f6ba_215f2dba-ef84-4dd1-b127-5f514a0c233b
            • Size 45B
            • SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
            • MD5 SHA1 SHA512

            udyunbw.txt

            • Path C:\Users\Admin\AppData\Roaming\udyunbw.txt
            • Size 164KB
            • SHA256 486b68ef93d03c4e486b8ddd9e153391e7debc6839e0c09d38999dd159e30705
            • 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/1020-110-0x000001DBAD8C0000-0x000001DBAD8D0000-memory.dmp

            memory/1020-164-0x000001DBAD810000-0x000001DBAD820000-memory.dmp

            memory/1020-23-0x000001DBAD800000-0x000001DBAD810000-memory.dmp

            memory/1020-27-0x000001DBAD810000-0x000001DBAD820000-memory.dmp

            memory/1020-30-0x000001DBAD830000-0x000001DBAD840000-memory.dmp

            memory/1020-29-0x000001DBAD820000-0x000001DBAD830000-memory.dmp

            memory/1020-35-0x000001DBAD840000-0x000001DBAD850000-memory.dmp

            memory/1020-37-0x000001DBAD530000-0x000001DBAD531000-memory.dmp

            memory/1020-41-0x000001DBAD850000-0x000001DBAD860000-memory.dmp

            memory/1020-44-0x000001DBAD880000-0x000001DBAD890000-memory.dmp

            memory/1020-43-0x000001DBAD870000-0x000001DBAD880000-memory.dmp

            memory/1020-42-0x000001DBAD860000-0x000001DBAD870000-memory.dmp

            memory/1020-49-0x000001DBAD8A0000-0x000001DBAD8B0000-memory.dmp

            memory/1020-50-0x000001DBAD8B0000-0x000001DBAD8C0000-memory.dmp

            memory/1020-48-0x000001DBAD890000-0x000001DBAD8A0000-memory.dmp

            memory/1020-53-0x000001DBAD8C0000-0x000001DBAD8D0000-memory.dmp

            memory/1020-56-0x000001DBAD8D0000-0x000001DBAD8E0000-memory.dmp

            memory/1020-55-0x000001DBAD550000-0x000001DBAD7C0000-memory.dmp

            memory/1020-60-0x000001DBAD7C0000-0x000001DBAD7D0000-memory.dmp

            memory/1020-63-0x000001DBAD8E0000-0x000001DBAD8F0000-memory.dmp

            memory/1020-62-0x000001DBAD7E0000-0x000001DBAD7F0000-memory.dmp

            memory/1020-61-0x000001DBAD7D0000-0x000001DBAD7E0000-memory.dmp

            memory/1020-67-0x000001DBAD8F0000-0x000001DBAD900000-memory.dmp

            memory/1020-66-0x000001DBAD7F0000-0x000001DBAD800000-memory.dmp

            memory/1020-85-0x000001DBAD950000-0x000001DBAD960000-memory.dmp

            memory/1020-84-0x000001DBAD810000-0x000001DBAD820000-memory.dmp

            memory/1020-88-0x000001DBAD970000-0x000001DBAD980000-memory.dmp

            memory/1020-87-0x000001DBAD830000-0x000001DBAD840000-memory.dmp

            memory/1020-86-0x000001DBAD820000-0x000001DBAD830000-memory.dmp

            memory/1020-83-0x000001DBAD960000-0x000001DBAD970000-memory.dmp

            memory/1020-82-0x000001DBAD940000-0x000001DBAD950000-memory.dmp

            memory/1020-81-0x000001DBAD930000-0x000001DBAD940000-memory.dmp

            memory/1020-77-0x000001DBAD920000-0x000001DBAD930000-memory.dmp

            memory/1020-76-0x000001DBAD910000-0x000001DBAD920000-memory.dmp

            memory/1020-75-0x000001DBAD900000-0x000001DBAD910000-memory.dmp

            memory/1020-74-0x000001DBAD800000-0x000001DBAD810000-memory.dmp

            memory/1020-93-0x000001DBAD530000-0x000001DBAD531000-memory.dmp

            memory/1020-96-0x000001DBAD980000-0x000001DBAD990000-memory.dmp

            memory/1020-95-0x000001DBAD840000-0x000001DBAD850000-memory.dmp

            memory/1020-97-0x000001DBAD530000-0x000001DBAD531000-memory.dmp

            memory/1020-99-0x000001DBAD850000-0x000001DBAD860000-memory.dmp

            memory/1020-103-0x000001DBAD990000-0x000001DBAD9A0000-memory.dmp

            memory/1020-102-0x000001DBAD880000-0x000001DBAD890000-memory.dmp

            memory/1020-101-0x000001DBAD870000-0x000001DBAD880000-memory.dmp

            memory/1020-100-0x000001DBAD860000-0x000001DBAD870000-memory.dmp

            memory/1020-105-0x000001DBAD890000-0x000001DBAD8A0000-memory.dmp

            memory/1020-108-0x000001DBAD9A0000-0x000001DBAD9B0000-memory.dmp

            memory/1020-107-0x000001DBAD8B0000-0x000001DBAD8C0000-memory.dmp

            memory/1020-106-0x000001DBAD8A0000-0x000001DBAD8B0000-memory.dmp

            memory/1020-18-0x000001DBAD7D0000-0x000001DBAD7E0000-memory.dmp

            memory/1020-111-0x000001DBAD9B0000-0x000001DBAD9C0000-memory.dmp

            memory/1020-112-0x000001DBAD530000-0x000001DBAD531000-memory.dmp

            memory/1020-21-0x000001DBAD7F0000-0x000001DBAD800000-memory.dmp

            memory/1020-114-0x000001DBAD8D0000-0x000001DBAD8E0000-memory.dmp

            memory/1020-125-0x000001DBAD530000-0x000001DBAD531000-memory.dmp

            memory/1020-121-0x000001DBAD8F0000-0x000001DBAD900000-memory.dmp

            memory/1020-123-0x000001DBAD9E0000-0x000001DBAD9F0000-memory.dmp

            memory/1020-122-0x000001DBAD930000-0x000001DBAD940000-memory.dmp

            memory/1020-119-0x000001DBAD8E0000-0x000001DBAD8F0000-memory.dmp

            memory/1020-120-0x000001DBAD9D0000-0x000001DBAD9E0000-memory.dmp

            memory/1020-129-0x000001DBAD900000-0x000001DBAD910000-memory.dmp

            memory/1020-131-0x000001DBAD920000-0x000001DBAD930000-memory.dmp

            memory/1020-134-0x000001DBAD9F0000-0x000001DBADA00000-memory.dmp

            memory/1020-133-0x000001DBAD960000-0x000001DBAD970000-memory.dmp

            memory/1020-132-0x000001DBAD940000-0x000001DBAD950000-memory.dmp

            memory/1020-130-0x000001DBAD910000-0x000001DBAD920000-memory.dmp

            memory/1020-136-0x000001DBAD950000-0x000001DBAD960000-memory.dmp

            memory/1020-137-0x000001DBADA00000-0x000001DBADA10000-memory.dmp

            memory/1020-140-0x000001DBAD530000-0x000001DBAD531000-memory.dmp

            memory/1020-142-0x000001DBAD970000-0x000001DBAD980000-memory.dmp

            memory/1020-146-0x000001DBADA10000-0x000001DBADA20000-memory.dmp

            memory/1020-145-0x000001DBAD980000-0x000001DBAD990000-memory.dmp

            memory/1020-148-0x000001DBAD530000-0x000001DBAD531000-memory.dmp

            memory/1020-152-0x000001DBAD530000-0x000001DBAD531000-memory.dmp

            memory/1020-154-0x000001DBAD990000-0x000001DBAD9A0000-memory.dmp

            memory/1020-155-0x000001DBAD9A0000-0x000001DBAD9B0000-memory.dmp

            memory/1020-157-0x000001DBAD530000-0x000001DBAD531000-memory.dmp

            memory/1020-158-0x000001DBAD550000-0x000001DBAD7C0000-memory.dmp

            memory/1020-160-0x000001DBAD7D0000-0x000001DBAD7E0000-memory.dmp

            memory/1020-182-0x000001DBADA00000-0x000001DBADA10000-memory.dmp

            memory/1020-181-0x000001DBAD9F0000-0x000001DBADA00000-memory.dmp

            memory/1020-180-0x000001DBAD9D0000-0x000001DBAD9E0000-memory.dmp

            memory/1020-179-0x000001DBAD9E0000-0x000001DBAD9F0000-memory.dmp

            memory/1020-178-0x000001DBAD9C0000-0x000001DBAD9D0000-memory.dmp

            memory/1020-177-0x000001DBAD9B0000-0x000001DBAD9C0000-memory.dmp

            memory/1020-176-0x000001DBAD960000-0x000001DBAD970000-memory.dmp

            memory/1020-175-0x000001DBAD940000-0x000001DBAD950000-memory.dmp

            memory/1020-173-0x000001DBAD8F0000-0x000001DBAD900000-memory.dmp

            memory/1020-172-0x000001DBAD8B0000-0x000001DBAD8C0000-memory.dmp

            memory/1020-171-0x000001DBAD880000-0x000001DBAD890000-memory.dmp

            memory/1020-170-0x000001DBAD870000-0x000001DBAD880000-memory.dmp

            memory/1020-169-0x000001DBAD860000-0x000001DBAD870000-memory.dmp

            memory/1020-168-0x000001DBAD850000-0x000001DBAD860000-memory.dmp

            memory/1020-167-0x000001DBAD840000-0x000001DBAD850000-memory.dmp

            memory/1020-166-0x000001DBAD830000-0x000001DBAD840000-memory.dmp

            memory/1020-165-0x000001DBAD820000-0x000001DBAD830000-memory.dmp

            memory/1020-115-0x000001DBAD9C0000-0x000001DBAD9D0000-memory.dmp

            memory/1020-163-0x000001DBAD800000-0x000001DBAD810000-memory.dmp

            memory/1020-162-0x000001DBAD7F0000-0x000001DBAD800000-memory.dmp

            memory/1020-161-0x000001DBAD7E0000-0x000001DBAD7F0000-memory.dmp

            memory/1020-159-0x000001DBAD7C0000-0x000001DBAD7D0000-memory.dmp

            memory/1020-4-0x000001DBAD550000-0x000001DBAD7C0000-memory.dmp

            memory/1020-19-0x000001DBAD7E0000-0x000001DBAD7F0000-memory.dmp

            memory/1020-17-0x000001DBAD7C0000-0x000001DBAD7D0000-memory.dmp

            memory/3992-249-0x000001D0C0410000-0x000001D0C0411000-memory.dmp

            memory/3992-256-0x000001D0C0410000-0x000001D0C0411000-memory.dmp

            memory/4308-215-0x00000288F9010000-0x00000288F9011000-memory.dmp