Analysis

  • max time kernel
    146s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-05-2024 01:37

General

  • Target

    cdddb72528ea0f9535676df3b408ba6bf4a8bf8b7d6a0ed6f74950c5300ab049.jar

  • Size

    452KB

  • MD5

    42fd31ecef528cdfadc0c2029acd4dd3

  • SHA1

    19712ae2e86368ee1bdad8bcad63bd0737f1ea29

  • SHA256

    cdddb72528ea0f9535676df3b408ba6bf4a8bf8b7d6a0ed6f74950c5300ab049

  • SHA512

    ad11734d8c8d325e326ad3e098931236780f2ea91910f0af538f17648a6ebc26e93b068f84eea254f55d992365526624a18006a6317bd2b8f41f1b01c493477f

  • SSDEEP

    12288:KU+rjFbxSTrH/MD8nAQaGroLs1zYJMhTQaQZbX6I:2jFbxurfOAqKoLslYJMhTQaMzl

Malware Config

Signatures

  • STRRAT

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

  • 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.

  • 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 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:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\cdddb72528ea0f9535676df3b408ba6bf4a8bf8b7d6a0ed6f74950c5300ab049.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4536
    • C:\Windows\system32\icacls.exe
      C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
      2⤵
      • Modifies file permissions
      PID:4652
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\cdddb72528ea0f9535676df3b408ba6bf4a8bf8b7d6a0ed6f74950c5300ab049.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2648
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\cdddb72528ea0f9535676df3b408ba6bf4a8bf8b7d6a0ed6f74950c5300ab049.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2232
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\cdddb72528ea0f9535676df3b408ba6bf4a8bf8b7d6a0ed6f74950c5300ab049.jar"
          4⤵
          • Creates scheduled task(s)
          PID:3116
      • 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\cdddb72528ea0f9535676df3b408ba6bf4a8bf8b7d6a0ed6f74950c5300ab049.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4880
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4176
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3252
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3744
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1324
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4544
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:4524
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4364
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:4216

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

        Filesize

        46B

        MD5

        c11370b3e8e6c9a6f017f6689f75b7d4

        SHA1

        d8231a3aa344f3197161aea8f04c2c8f662e612e

        SHA256

        47592b146862ee2d2b0ed0652730de95faee05770f253aa80ebb3b4f3f1a0b8b

        SHA512

        0d0135371cc071cef31c11d241ce0a1d783fa7ca2fbfa251c3a5a5c6ebcc89f59ea1a40d90dd3c862d04aa761a9011abcbc375d114c103da600069e81d4ba7cf

      • C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

        Filesize

        46B

        MD5

        8d15a4dd998e86aad9c1d7bc4b78a08f

        SHA1

        af1cf7a202facfa3bc1be0a74910fd031301a2a5

        SHA256

        dfdc5d0c4b3a637e5f9bd3f0cf84f49160482120bfe0e7a0c06541cc249163dc

        SHA512

        793a22d64ffa502356feefb8d08250d5e684ddcae412db691d5789a785038f6b2e33c0a3e2f27d38747f3ff4d580ce4d6b710ce12484fc9587d4d447d2ba334e

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna4834952771288915096.dll

        Filesize

        241KB

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2804150937-2146708401-419095071-1000\83aa4cc77f591dfc2374580bbd95f6ba_5a32ead2-14a8-4b34-b6a3-85cfb28e2fbd

        Filesize

        45B

        MD5

        c8366ae350e7019aefc9d1e6e6a498c6

        SHA1

        5731d8a3e6568a5f2dfbbc87e3db9637df280b61

        SHA256

        11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

        SHA512

        33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

      • C:\Users\Admin\cdddb72528ea0f9535676df3b408ba6bf4a8bf8b7d6a0ed6f74950c5300ab049.jar

        Filesize

        452KB

        MD5

        42fd31ecef528cdfadc0c2029acd4dd3

        SHA1

        19712ae2e86368ee1bdad8bcad63bd0737f1ea29

        SHA256

        cdddb72528ea0f9535676df3b408ba6bf4a8bf8b7d6a0ed6f74950c5300ab049

        SHA512

        ad11734d8c8d325e326ad3e098931236780f2ea91910f0af538f17648a6ebc26e93b068f84eea254f55d992365526624a18006a6317bd2b8f41f1b01c493477f

      • C:\Users\Admin\lib\jna-5.5.0.jar

        Filesize

        1.4MB

        MD5

        acfb5b5fd9ee10bf69497792fd469f85

        SHA1

        0e0845217c4907822403912ad6828d8e0b256208

        SHA256

        b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e

        SHA512

        e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa

      • C:\Users\Admin\lib\jna-platform-5.5.0.jar

        Filesize

        2.6MB

        MD5

        2f4a99c2758e72ee2b59a73586a2322f

        SHA1

        af38e7c4d0fc73c23ecd785443705bfdee5b90bf

        SHA256

        24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5

        SHA512

        b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494

      • C:\Users\Admin\lib\sqlite-jdbc-3.14.2.1.jar

        Filesize

        4.1MB

        MD5

        b33387e15ab150a7bf560abdc73c3bec

        SHA1

        66b8075784131f578ef893fd7674273f709b9a4c

        SHA256

        2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491

        SHA512

        25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279

      • C:\Users\Admin\lib\system-hook-3.5.jar

        Filesize

        772KB

        MD5

        e1aa38a1e78a76a6de73efae136cdb3a

        SHA1

        c463da71871f780b2e2e5dba115d43953b537daf

        SHA256

        2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609

        SHA512

        fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d

      • memory/2648-257-0x0000023DB59D0000-0x0000023DB59D1000-memory.dmp

        Filesize

        4KB

      • memory/4536-103-0x0000028800450000-0x0000028800460000-memory.dmp

        Filesize

        64KB

      • memory/4536-187-0x0000028800290000-0x00000288002A0000-memory.dmp

        Filesize

        64KB

      • memory/4536-25-0x00000288002D0000-0x00000288002E0000-memory.dmp

        Filesize

        64KB

      • memory/4536-28-0x00000288002E0000-0x00000288002F0000-memory.dmp

        Filesize

        64KB

      • memory/4536-31-0x0000028800300000-0x0000028800310000-memory.dmp

        Filesize

        64KB

      • memory/4536-30-0x00000288002F0000-0x0000028800300000-memory.dmp

        Filesize

        64KB

      • memory/4536-34-0x0000028800310000-0x0000028800320000-memory.dmp

        Filesize

        64KB

      • memory/4536-36-0x0000028800320000-0x0000028800330000-memory.dmp

        Filesize

        64KB

      • memory/4536-38-0x0000028800330000-0x0000028800340000-memory.dmp

        Filesize

        64KB

      • memory/4536-37-0x0000028800000000-0x0000028800270000-memory.dmp

        Filesize

        2.4MB

      • memory/4536-39-0x00000288731F0000-0x00000288731F1000-memory.dmp

        Filesize

        4KB

      • memory/4536-43-0x0000028800340000-0x0000028800350000-memory.dmp

        Filesize

        64KB

      • memory/4536-44-0x0000028800350000-0x0000028800360000-memory.dmp

        Filesize

        64KB

      • memory/4536-46-0x0000028800280000-0x0000028800290000-memory.dmp

        Filesize

        64KB

      • memory/4536-42-0x0000028800270000-0x0000028800280000-memory.dmp

        Filesize

        64KB

      • memory/4536-47-0x0000028800360000-0x0000028800370000-memory.dmp

        Filesize

        64KB

      • memory/4536-54-0x0000028800370000-0x0000028800380000-memory.dmp

        Filesize

        64KB

      • memory/4536-53-0x00000288002A0000-0x00000288002B0000-memory.dmp

        Filesize

        64KB

      • memory/4536-52-0x0000028800290000-0x00000288002A0000-memory.dmp

        Filesize

        64KB

      • memory/4536-60-0x0000028800390000-0x00000288003A0000-memory.dmp

        Filesize

        64KB

      • memory/4536-59-0x0000028800380000-0x0000028800390000-memory.dmp

        Filesize

        64KB

      • memory/4536-58-0x00000288002B0000-0x00000288002C0000-memory.dmp

        Filesize

        64KB

      • memory/4536-64-0x00000288003A0000-0x00000288003B0000-memory.dmp

        Filesize

        64KB

      • memory/4536-63-0x00000288002D0000-0x00000288002E0000-memory.dmp

        Filesize

        64KB

      • memory/4536-66-0x00000288002E0000-0x00000288002F0000-memory.dmp

        Filesize

        64KB

      • memory/4536-67-0x00000288003B0000-0x00000288003C0000-memory.dmp

        Filesize

        64KB

      • memory/4536-62-0x00000288002C0000-0x00000288002D0000-memory.dmp

        Filesize

        64KB

      • memory/4536-71-0x00000288003C0000-0x00000288003D0000-memory.dmp

        Filesize

        64KB

      • memory/4536-70-0x0000028800300000-0x0000028800310000-memory.dmp

        Filesize

        64KB

      • memory/4536-69-0x00000288002F0000-0x0000028800300000-memory.dmp

        Filesize

        64KB

      • memory/4536-74-0x00000288003D0000-0x00000288003E0000-memory.dmp

        Filesize

        64KB

      • memory/4536-82-0x0000028800400000-0x0000028800410000-memory.dmp

        Filesize

        64KB

      • memory/4536-84-0x0000028800410000-0x0000028800420000-memory.dmp

        Filesize

        64KB

      • memory/4536-88-0x0000028800420000-0x0000028800430000-memory.dmp

        Filesize

        64KB

      • memory/4536-87-0x0000028800350000-0x0000028800360000-memory.dmp

        Filesize

        64KB

      • memory/4536-86-0x0000028800340000-0x0000028800350000-memory.dmp

        Filesize

        64KB

      • memory/4536-83-0x0000028800330000-0x0000028800340000-memory.dmp

        Filesize

        64KB

      • memory/4536-81-0x00000288003F0000-0x0000028800400000-memory.dmp

        Filesize

        64KB

      • memory/4536-80-0x00000288003E0000-0x00000288003F0000-memory.dmp

        Filesize

        64KB

      • memory/4536-79-0x0000028800320000-0x0000028800330000-memory.dmp

        Filesize

        64KB

      • memory/4536-73-0x0000028800310000-0x0000028800320000-memory.dmp

        Filesize

        64KB

      • memory/4536-93-0x0000028800430000-0x0000028800440000-memory.dmp

        Filesize

        64KB

      • memory/4536-92-0x0000028800360000-0x0000028800370000-memory.dmp

        Filesize

        64KB

      • memory/4536-95-0x0000028800370000-0x0000028800380000-memory.dmp

        Filesize

        64KB

      • memory/4536-97-0x00000288731F0000-0x00000288731F1000-memory.dmp

        Filesize

        4KB

      • memory/4536-96-0x0000028800440000-0x0000028800450000-memory.dmp

        Filesize

        64KB

      • memory/4536-21-0x00000288002B0000-0x00000288002C0000-memory.dmp

        Filesize

        64KB

      • memory/4536-119-0x00000288004B0000-0x00000288004C0000-memory.dmp

        Filesize

        64KB

      • memory/4536-101-0x0000028800380000-0x0000028800390000-memory.dmp

        Filesize

        64KB

      • memory/4536-107-0x00000288003A0000-0x00000288003B0000-memory.dmp

        Filesize

        64KB

      • memory/4536-116-0x00000288003B0000-0x00000288003C0000-memory.dmp

        Filesize

        64KB

      • memory/4536-120-0x00000288004C0000-0x00000288004D0000-memory.dmp

        Filesize

        64KB

      • memory/4536-102-0x0000028800390000-0x00000288003A0000-memory.dmp

        Filesize

        64KB

      • memory/4536-24-0x00000288002C0000-0x00000288002D0000-memory.dmp

        Filesize

        64KB

      • memory/4536-184-0x0000028800000000-0x0000028800270000-memory.dmp

        Filesize

        2.4MB

      • memory/4536-126-0x00000288003C0000-0x00000288003D0000-memory.dmp

        Filesize

        64KB

      • memory/4536-118-0x00000288004A0000-0x00000288004B0000-memory.dmp

        Filesize

        64KB

      • memory/4536-117-0x0000028800490000-0x00000288004A0000-memory.dmp

        Filesize

        64KB

      • memory/4536-111-0x0000028800480000-0x0000028800490000-memory.dmp

        Filesize

        64KB

      • memory/4536-109-0x0000028800470000-0x0000028800480000-memory.dmp

        Filesize

        64KB

      • memory/4536-108-0x0000028800460000-0x0000028800470000-memory.dmp

        Filesize

        64KB

      • memory/4536-128-0x00000288731F0000-0x00000288731F1000-memory.dmp

        Filesize

        4KB

      • memory/4536-133-0x00000288004F0000-0x0000028800500000-memory.dmp

        Filesize

        64KB

      • memory/4536-132-0x00000288004E0000-0x00000288004F0000-memory.dmp

        Filesize

        64KB

      • memory/4536-131-0x00000288003D0000-0x00000288003E0000-memory.dmp

        Filesize

        64KB

      • memory/4536-135-0x00000288003E0000-0x00000288003F0000-memory.dmp

        Filesize

        64KB

      • memory/4536-138-0x0000028800500000-0x0000028800510000-memory.dmp

        Filesize

        64KB

      • memory/4536-137-0x0000028800400000-0x0000028800410000-memory.dmp

        Filesize

        64KB

      • memory/4536-136-0x00000288003F0000-0x0000028800400000-memory.dmp

        Filesize

        64KB

      • memory/4536-140-0x0000028800410000-0x0000028800420000-memory.dmp

        Filesize

        64KB

      • memory/4536-141-0x0000028800510000-0x0000028800520000-memory.dmp

        Filesize

        64KB

      • memory/4536-144-0x0000028800520000-0x0000028800530000-memory.dmp

        Filesize

        64KB

      • memory/4536-143-0x0000028800420000-0x0000028800430000-memory.dmp

        Filesize

        64KB

      • memory/4536-150-0x0000028800540000-0x0000028800550000-memory.dmp

        Filesize

        64KB

      • memory/4536-149-0x0000028800530000-0x0000028800540000-memory.dmp

        Filesize

        64KB

      • memory/4536-148-0x0000028800430000-0x0000028800440000-memory.dmp

        Filesize

        64KB

      • memory/4536-145-0x00000288731F0000-0x00000288731F1000-memory.dmp

        Filesize

        4KB

      • memory/4536-154-0x0000028800550000-0x0000028800560000-memory.dmp

        Filesize

        64KB

      • memory/4536-153-0x0000028800440000-0x0000028800450000-memory.dmp

        Filesize

        64KB

      • memory/4536-156-0x00000288731F0000-0x00000288731F1000-memory.dmp

        Filesize

        4KB

      • memory/4536-163-0x0000028800570000-0x0000028800580000-memory.dmp

        Filesize

        64KB

      • memory/4536-162-0x0000028800560000-0x0000028800570000-memory.dmp

        Filesize

        64KB

      • memory/4536-161-0x0000028800450000-0x0000028800460000-memory.dmp

        Filesize

        64KB

      • memory/4536-169-0x00000288731F0000-0x00000288731F1000-memory.dmp

        Filesize

        4KB

      • memory/4536-170-0x0000028800460000-0x0000028800470000-memory.dmp

        Filesize

        64KB

      • memory/4536-171-0x0000028800470000-0x0000028800480000-memory.dmp

        Filesize

        64KB

      • memory/4536-173-0x0000028800580000-0x0000028800590000-memory.dmp

        Filesize

        64KB

      • memory/4536-172-0x0000028800480000-0x0000028800490000-memory.dmp

        Filesize

        64KB

      • memory/4536-177-0x0000028800490000-0x00000288004A0000-memory.dmp

        Filesize

        64KB

      • memory/4536-178-0x00000288004A0000-0x00000288004B0000-memory.dmp

        Filesize

        64KB

      • memory/4536-179-0x00000288004B0000-0x00000288004C0000-memory.dmp

        Filesize

        64KB

      • memory/4536-180-0x00000288004C0000-0x00000288004D0000-memory.dmp

        Filesize

        64KB

      • memory/4536-183-0x00000288731F0000-0x00000288731F1000-memory.dmp

        Filesize

        4KB

      • memory/4536-127-0x00000288004D0000-0x00000288004E0000-memory.dmp

        Filesize

        64KB

      • memory/4536-189-0x00000288002B0000-0x00000288002C0000-memory.dmp

        Filesize

        64KB

      • memory/4536-18-0x0000028800290000-0x00000288002A0000-memory.dmp

        Filesize

        64KB

      • memory/4536-19-0x00000288002A0000-0x00000288002B0000-memory.dmp

        Filesize

        64KB

      • memory/4536-15-0x0000028800280000-0x0000028800290000-memory.dmp

        Filesize

        64KB

      • memory/4536-188-0x00000288002A0000-0x00000288002B0000-memory.dmp

        Filesize

        64KB

      • memory/4536-123-0x00000288731F0000-0x00000288731F1000-memory.dmp

        Filesize

        4KB

      • memory/4536-186-0x0000028800280000-0x0000028800290000-memory.dmp

        Filesize

        64KB

      • memory/4536-185-0x0000028800270000-0x0000028800280000-memory.dmp

        Filesize

        64KB

      • memory/4536-2-0x0000028800000000-0x0000028800270000-memory.dmp

        Filesize

        2.4MB

      • memory/4536-14-0x0000028800270000-0x0000028800280000-memory.dmp

        Filesize

        64KB

      • memory/4880-359-0x000001C71A4D0000-0x000001C71A4D1000-memory.dmp

        Filesize

        4KB