Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/09/2024, 01:32

General

  • Target
    c6fee7fb70025c071b147b62a8f12eff3fc9f2c05e192e423ca4164de6b02a46.js
  • Size 735KB
  • Sample240922-bx6gnswbll
  • SHA256 c6fee7fb70025c071b147b62a8f12eff3fc9f2c05e192e423ca4164de6b02a46
  • 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
  • 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).

  • Scheduled Task/Job: Scheduled Task 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 26 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\c6fee7fb70025c071b147b62a8f12eff3fc9f2c05e192e423ca4164de6b02a46.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1884
    • 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\udowpxdgpk.txt"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:116
      • C:\Program Files\Java\jre-1.8\bin\java.exe
        "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\udowpxdgpk.txt"
        3⤵
        • Drops startup file
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:3488
        • C:\Windows\SYSTEM32\cmd.exe
          cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\udowpxdgpk.txt"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3372
          • C:\Windows\system32\schtasks.exe
            schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\udowpxdgpk.txt"
            5⤵
            • Scheduled Task/Job: Scheduled Task
            PID:2724
        • 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\udowpxdgpk.txt"
          4⤵
          • Loads dropped DLL
          • Adds Run key to start application
          • Suspicious use of WriteProcessMemory
          PID:3784
          • 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:4312
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:4860
          • 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:4324
            • 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:3356
          • 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:2368
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
              6⤵
                PID:4236
            • 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:1676
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
                6⤵
                  PID:3876

      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 750022e3fb2dad90283c07481b284eef0db778b0c85a887e612d79b80473f96f
            • MD5 SHA1 SHA512

            3903daac9bc4a3b7.timestamp

            • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
            • Size 46B
            • SHA256 bf28ba3aabd1227755ce9addaee44637111ab6d7905ad290421c3213b77992c1
            • MD5 SHA1 SHA512

            jna3586145616727738220.dll

            • Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna3586145616727738220.dll
            • Size 241KB
            • SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
            • MD5 SHA1 SHA512 SSDEEP

            83aa4cc77f591dfc2374580bbd95f6ba_32404286-a0b5-4a93-9620-6f13fd83251a

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2718105630-359604950-2820636825-1000\83aa4cc77f591dfc2374580bbd95f6ba_32404286-a0b5-4a93-9620-6f13fd83251a
            • Size 45B
            • SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
            • MD5 SHA1 SHA512

            udowpxdgpk.txt

            • Path C:\Users\Admin\AppData\Roaming\udowpxdgpk.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/116-108-0x0000013EE7E50000-0x0000013EE7E60000-memory.dmp

            memory/116-14-0x0000013EE7C80000-0x0000013EE7C90000-memory.dmp

            memory/116-25-0x0000013EE7CD0000-0x0000013EE7CE0000-memory.dmp

            memory/116-24-0x0000013EE7CC0000-0x0000013EE7CD0000-memory.dmp

            memory/116-30-0x0000013EE7CE0000-0x0000013EE7CF0000-memory.dmp

            memory/116-33-0x0000013EE7CF0000-0x0000013EE7D00000-memory.dmp

            memory/116-35-0x0000013EE7D00000-0x0000013EE7D10000-memory.dmp

            memory/116-42-0x0000013EE7C80000-0x0000013EE7C90000-memory.dmp

            memory/116-43-0x0000013EE61B0000-0x0000013EE61B1000-memory.dmp

            memory/116-41-0x0000013EE7D20000-0x0000013EE7D30000-memory.dmp

            memory/116-40-0x0000013EE7D30000-0x0000013EE7D40000-memory.dmp

            memory/116-39-0x0000013EE7A10000-0x0000013EE7C80000-memory.dmp

            memory/116-36-0x0000013EE7D10000-0x0000013EE7D20000-memory.dmp

            memory/116-49-0x0000013EE7D50000-0x0000013EE7D60000-memory.dmp

            memory/116-48-0x0000013EE7D40000-0x0000013EE7D50000-memory.dmp

            memory/116-47-0x0000013EE7CA0000-0x0000013EE7CB0000-memory.dmp

            memory/116-46-0x0000013EE7C90000-0x0000013EE7CA0000-memory.dmp

            memory/116-52-0x0000013EE7D60000-0x0000013EE7D70000-memory.dmp

            memory/116-51-0x0000013EE7CB0000-0x0000013EE7CC0000-memory.dmp

            memory/116-55-0x0000013EE7D70000-0x0000013EE7D80000-memory.dmp

            memory/116-54-0x0000013EE7CC0000-0x0000013EE7CD0000-memory.dmp

            memory/116-59-0x0000013EE7D80000-0x0000013EE7D90000-memory.dmp

            memory/116-58-0x0000013EE7CD0000-0x0000013EE7CE0000-memory.dmp

            memory/116-62-0x0000013EE7D90000-0x0000013EE7DA0000-memory.dmp

            memory/116-61-0x0000013EE7CE0000-0x0000013EE7CF0000-memory.dmp

            memory/116-65-0x0000013EE7CF0000-0x0000013EE7D00000-memory.dmp

            memory/116-66-0x0000013EE7DA0000-0x0000013EE7DB0000-memory.dmp

            memory/116-67-0x0000013EE61B0000-0x0000013EE61B1000-memory.dmp

            memory/116-70-0x0000013EE7D10000-0x0000013EE7D20000-memory.dmp

            memory/116-69-0x0000013EE7D00000-0x0000013EE7D10000-memory.dmp

            memory/116-72-0x0000013EE7DB0000-0x0000013EE7DC0000-memory.dmp

            memory/116-77-0x0000013EE7DC0000-0x0000013EE7DD0000-memory.dmp

            memory/116-76-0x0000013EE7D30000-0x0000013EE7D40000-memory.dmp

            memory/116-79-0x0000013EE7D20000-0x0000013EE7D30000-memory.dmp

            memory/116-83-0x0000013EE7D50000-0x0000013EE7D60000-memory.dmp

            memory/116-82-0x0000013EE7D40000-0x0000013EE7D50000-memory.dmp

            memory/116-81-0x0000013EE7DE0000-0x0000013EE7DF0000-memory.dmp

            memory/116-85-0x0000013EE7DF0000-0x0000013EE7E00000-memory.dmp

            memory/116-80-0x0000013EE7DD0000-0x0000013EE7DE0000-memory.dmp

            memory/116-93-0x0000013EE7D70000-0x0000013EE7D80000-memory.dmp

            memory/116-92-0x0000013EE7E20000-0x0000013EE7E30000-memory.dmp

            memory/116-91-0x0000013EE7E10000-0x0000013EE7E20000-memory.dmp

            memory/116-90-0x0000013EE7E00000-0x0000013EE7E10000-memory.dmp

            memory/116-89-0x0000013EE7D60000-0x0000013EE7D70000-memory.dmp

            memory/116-98-0x0000013EE61B0000-0x0000013EE61B1000-memory.dmp

            memory/116-101-0x0000013EE7E30000-0x0000013EE7E40000-memory.dmp

            memory/116-100-0x0000013EE7D80000-0x0000013EE7D90000-memory.dmp

            memory/116-103-0x0000013EE7D90000-0x0000013EE7DA0000-memory.dmp

            memory/116-104-0x0000013EE7E40000-0x0000013EE7E50000-memory.dmp

            memory/116-18-0x0000013EE7CA0000-0x0000013EE7CB0000-memory.dmp

            memory/116-107-0x0000013EE7DA0000-0x0000013EE7DB0000-memory.dmp

            memory/116-106-0x0000013EE61B0000-0x0000013EE61B1000-memory.dmp

            memory/116-20-0x0000013EE7CB0000-0x0000013EE7CC0000-memory.dmp

            memory/116-110-0x0000013EE7DB0000-0x0000013EE7DC0000-memory.dmp

            memory/116-121-0x0000013EE7E90000-0x0000013EE7EA0000-memory.dmp

            memory/116-114-0x0000013EE7DC0000-0x0000013EE7DD0000-memory.dmp

            memory/116-117-0x0000013EE7DD0000-0x0000013EE7DE0000-memory.dmp

            memory/116-118-0x0000013EE7E80000-0x0000013EE7E90000-memory.dmp

            memory/116-120-0x0000013EE7DE0000-0x0000013EE7DF0000-memory.dmp

            memory/116-115-0x0000013EE7E70000-0x0000013EE7E80000-memory.dmp

            memory/116-124-0x0000013EE7EA0000-0x0000013EE7EB0000-memory.dmp

            memory/116-123-0x0000013EE7DF0000-0x0000013EE7E00000-memory.dmp

            memory/116-125-0x0000013EE61B0000-0x0000013EE61B1000-memory.dmp

            memory/116-130-0x0000013EE7E00000-0x0000013EE7E10000-memory.dmp

            memory/116-133-0x0000013EE7EB0000-0x0000013EE7EC0000-memory.dmp

            memory/116-132-0x0000013EE7E20000-0x0000013EE7E30000-memory.dmp

            memory/116-131-0x0000013EE7E10000-0x0000013EE7E20000-memory.dmp

            memory/116-135-0x0000013EE7EC0000-0x0000013EE7ED0000-memory.dmp

            memory/116-140-0x0000013EE61B0000-0x0000013EE61B1000-memory.dmp

            memory/116-141-0x0000013EE7E30000-0x0000013EE7E40000-memory.dmp

            memory/116-145-0x0000013EE7E40000-0x0000013EE7E50000-memory.dmp

            memory/116-146-0x0000013EE7E50000-0x0000013EE7E60000-memory.dmp

            memory/116-149-0x0000013EE61B0000-0x0000013EE61B1000-memory.dmp

            memory/116-154-0x0000013EE7CC0000-0x0000013EE7CD0000-memory.dmp

            memory/116-153-0x0000013EE7CB0000-0x0000013EE7CC0000-memory.dmp

            memory/116-152-0x0000013EE7CD0000-0x0000013EE7CE0000-memory.dmp

            memory/116-176-0x0000013EE7E90000-0x0000013EE7EA0000-memory.dmp

            memory/116-175-0x0000013EE7E80000-0x0000013EE7E90000-memory.dmp

            memory/116-174-0x0000013EE7E70000-0x0000013EE7E80000-memory.dmp

            memory/116-173-0x0000013EE7E60000-0x0000013EE7E70000-memory.dmp

            memory/116-172-0x0000013EE7E30000-0x0000013EE7E40000-memory.dmp

            memory/116-171-0x0000013EE7E10000-0x0000013EE7E20000-memory.dmp

            memory/116-170-0x0000013EE7D20000-0x0000013EE7D30000-memory.dmp

            memory/116-169-0x0000013EE7DB0000-0x0000013EE7DC0000-memory.dmp

            memory/116-168-0x0000013EE7DA0000-0x0000013EE7DB0000-memory.dmp

            memory/116-167-0x0000013EE7D90000-0x0000013EE7DA0000-memory.dmp

            memory/116-166-0x0000013EE7D80000-0x0000013EE7D90000-memory.dmp

            memory/116-165-0x0000013EE7D70000-0x0000013EE7D80000-memory.dmp

            memory/116-164-0x0000013EE7D60000-0x0000013EE7D70000-memory.dmp

            memory/116-163-0x0000013EE7D50000-0x0000013EE7D60000-memory.dmp

            memory/116-162-0x0000013EE7D40000-0x0000013EE7D50000-memory.dmp

            memory/116-161-0x0000013EE7A10000-0x0000013EE7C80000-memory.dmp

            memory/116-160-0x0000013EE7D30000-0x0000013EE7D40000-memory.dmp

            memory/116-159-0x0000013EE7D10000-0x0000013EE7D20000-memory.dmp

            memory/116-158-0x0000013EE7D00000-0x0000013EE7D10000-memory.dmp

            memory/116-16-0x0000013EE7C90000-0x0000013EE7CA0000-memory.dmp

            memory/116-111-0x0000013EE7E60000-0x0000013EE7E70000-memory.dmp

            memory/116-157-0x0000013EE7CF0000-0x0000013EE7D00000-memory.dmp

            memory/116-156-0x0000013EE7CE0000-0x0000013EE7CF0000-memory.dmp

            memory/116-155-0x0000013EE7CA0000-0x0000013EE7CB0000-memory.dmp

            memory/116-151-0x0000013EE7C90000-0x0000013EE7CA0000-memory.dmp

            memory/116-150-0x0000013EE7C80000-0x0000013EE7C90000-memory.dmp

            memory/116-4-0x0000013EE7A10000-0x0000013EE7C80000-memory.dmp

            memory/3488-229-0x000002B4DB1D0000-0x000002B4DB1D1000-memory.dmp

            memory/3488-213-0x000002B4DB1D0000-0x000002B4DB1D1000-memory.dmp

            memory/3784-262-0x000002A0DB760000-0x000002A0DB761000-memory.dmp

            memory/3784-270-0x000002A0DB760000-0x000002A0DB761000-memory.dmp