Analysis

  • max time kernel
    148s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-06-2024 06:47

General

  • Target

    Invoice646737327328282892992.jar

  • Size

    453KB

  • MD5

    e11d4be9ebd996da2df7f4e07a06876d

  • SHA1

    1e809d3f00f40cf03cf9a5335399acafa2037fc5

  • SHA256

    87bfc0255d14849743cefe83b8324fc1eb59259be6826cd0d57497e1d7bee178

  • SHA512

    e9db4c6c5b27bbf43b74234c8ff4996454c23c82497e8fd97e0b087413cb8589426a5749666268c8d23e06193918d9ad98be13cea9a1e2ed48fc0dfb79bd0e77

  • SSDEEP

    12288:hOk7azW39Yv5VmKQVsbyIUZtbb9QWugj3bmJh:nyU9omeWIUZhbtuyLkh

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\Invoice646737327328282892992.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1432
    • 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:1636
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\Invoice646737327328282892992.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2428
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Invoice646737327328282892992.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1000
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Invoice646737327328282892992.jar"
          4⤵
          • Creates scheduled task(s)
          PID:632
      • 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\Invoice646737327328282892992.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4892
        • 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:1108
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2352
        • 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:4920
          • 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:2148
        • 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:3044
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:3612
          • 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:2784
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:940
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1416 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:5076

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          46B

          MD5

          31788790ad4ffb5df5b9e2bbea803b1f

          SHA1

          c35b9af96ee61bc05e37c22ff57b537d96df88e1

          SHA256

          b0ef66c6f6bca95e32c3e89ab98a99516442049349d5233fc78e830ac08b1c3f

          SHA512

          1a6706159b2b33f9798e99cc8cad688c03e49f8dccf1e6e3448fe9cb362905eb828967517e0436d6e398d063b5c43f93e9aa56025aaae49c3fdea76a2e4b3e3e

        • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna548062282203360583.dll

          Filesize

          241KB

          MD5

          e02979ecd43bcc9061eb2b494ab5af50

          SHA1

          3122ac0e751660f646c73b10c4f79685aa65c545

          SHA256

          a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

          SHA512

          1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

        • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3808065738-1666277613-1125846146-1000\83aa4cc77f591dfc2374580bbd95f6ba_2397ee06-28fe-4eaa-8777-f7014368c353

          Filesize

          45B

          MD5

          c8366ae350e7019aefc9d1e6e6a498c6

          SHA1

          5731d8a3e6568a5f2dfbbc87e3db9637df280b61

          SHA256

          11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

          SHA512

          33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

        • C:\Users\Admin\Invoice646737327328282892992.jar

          Filesize

          453KB

          MD5

          e11d4be9ebd996da2df7f4e07a06876d

          SHA1

          1e809d3f00f40cf03cf9a5335399acafa2037fc5

          SHA256

          87bfc0255d14849743cefe83b8324fc1eb59259be6826cd0d57497e1d7bee178

          SHA512

          e9db4c6c5b27bbf43b74234c8ff4996454c23c82497e8fd97e0b087413cb8589426a5749666268c8d23e06193918d9ad98be13cea9a1e2ed48fc0dfb79bd0e77

        • 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/1432-97-0x0000025F5A1D0000-0x0000025F5A1E0000-memory.dmp

          Filesize

          64KB

        • memory/1432-40-0x0000025F5A0D0000-0x0000025F5A0E0000-memory.dmp

          Filesize

          64KB

        • memory/1432-25-0x0000025F5A110000-0x0000025F5A120000-memory.dmp

          Filesize

          64KB

        • memory/1432-26-0x0000025F5A120000-0x0000025F5A130000-memory.dmp

          Filesize

          64KB

        • memory/1432-29-0x0000025F5A130000-0x0000025F5A140000-memory.dmp

          Filesize

          64KB

        • memory/1432-32-0x0000025F5A140000-0x0000025F5A150000-memory.dmp

          Filesize

          64KB

        • memory/1432-33-0x0000025F5A150000-0x0000025F5A160000-memory.dmp

          Filesize

          64KB

        • memory/1432-36-0x0000025F5A160000-0x0000025F5A170000-memory.dmp

          Filesize

          64KB

        • memory/1432-35-0x0000025F59E60000-0x0000025F5A0D0000-memory.dmp

          Filesize

          2.4MB

        • memory/1432-38-0x0000025F5A170000-0x0000025F5A180000-memory.dmp

          Filesize

          64KB

        • memory/1432-41-0x0000025F5A180000-0x0000025F5A190000-memory.dmp

          Filesize

          64KB

        • memory/1432-116-0x0000025F58690000-0x0000025F58691000-memory.dmp

          Filesize

          4KB

        • memory/1432-44-0x0000025F5A190000-0x0000025F5A1A0000-memory.dmp

          Filesize

          64KB

        • memory/1432-43-0x0000025F5A0E0000-0x0000025F5A0F0000-memory.dmp

          Filesize

          64KB

        • memory/1432-48-0x0000025F5A1A0000-0x0000025F5A1B0000-memory.dmp

          Filesize

          64KB

        • memory/1432-47-0x0000025F5A0F0000-0x0000025F5A100000-memory.dmp

          Filesize

          64KB

        • memory/1432-50-0x0000025F5A100000-0x0000025F5A110000-memory.dmp

          Filesize

          64KB

        • memory/1432-51-0x0000025F5A1B0000-0x0000025F5A1C0000-memory.dmp

          Filesize

          64KB

        • memory/1432-54-0x0000025F5A1C0000-0x0000025F5A1D0000-memory.dmp

          Filesize

          64KB

        • memory/1432-53-0x0000025F5A110000-0x0000025F5A120000-memory.dmp

          Filesize

          64KB

        • memory/1432-57-0x0000025F5A1D0000-0x0000025F5A1E0000-memory.dmp

          Filesize

          64KB

        • memory/1432-56-0x0000025F5A120000-0x0000025F5A130000-memory.dmp

          Filesize

          64KB

        • memory/1432-63-0x0000025F5A130000-0x0000025F5A140000-memory.dmp

          Filesize

          64KB

        • memory/1432-64-0x0000025F5A1E0000-0x0000025F5A1F0000-memory.dmp

          Filesize

          64KB

        • memory/1432-67-0x0000025F58690000-0x0000025F58691000-memory.dmp

          Filesize

          4KB

        • memory/1432-70-0x0000025F5A1F0000-0x0000025F5A200000-memory.dmp

          Filesize

          64KB

        • memory/1432-69-0x0000025F5A150000-0x0000025F5A160000-memory.dmp

          Filesize

          64KB

        • memory/1432-68-0x0000025F5A140000-0x0000025F5A150000-memory.dmp

          Filesize

          64KB

        • memory/1432-61-0x0000025F58690000-0x0000025F58691000-memory.dmp

          Filesize

          4KB

        • memory/1432-72-0x0000025F58690000-0x0000025F58691000-memory.dmp

          Filesize

          4KB

        • memory/1432-74-0x0000025F5A160000-0x0000025F5A170000-memory.dmp

          Filesize

          64KB

        • memory/1432-75-0x0000025F5A200000-0x0000025F5A210000-memory.dmp

          Filesize

          64KB

        • memory/1432-77-0x0000025F5A170000-0x0000025F5A180000-memory.dmp

          Filesize

          64KB

        • memory/1432-78-0x0000025F5A210000-0x0000025F5A220000-memory.dmp

          Filesize

          64KB

        • memory/1432-81-0x0000025F5A220000-0x0000025F5A230000-memory.dmp

          Filesize

          64KB

        • memory/1432-111-0x0000025F5A1F0000-0x0000025F5A200000-memory.dmp

          Filesize

          64KB

        • memory/1432-83-0x0000025F5A190000-0x0000025F5A1A0000-memory.dmp

          Filesize

          64KB

        • memory/1432-84-0x0000025F5A230000-0x0000025F5A240000-memory.dmp

          Filesize

          64KB

        • memory/1432-92-0x0000025F5A260000-0x0000025F5A270000-memory.dmp

          Filesize

          64KB

        • memory/1432-91-0x0000025F5A1B0000-0x0000025F5A1C0000-memory.dmp

          Filesize

          64KB

        • memory/1432-89-0x0000025F5A250000-0x0000025F5A260000-memory.dmp

          Filesize

          64KB

        • memory/1432-88-0x0000025F5A240000-0x0000025F5A250000-memory.dmp

          Filesize

          64KB

        • memory/1432-87-0x0000025F5A1A0000-0x0000025F5A1B0000-memory.dmp

          Filesize

          64KB

        • memory/1432-95-0x0000025F5A270000-0x0000025F5A280000-memory.dmp

          Filesize

          64KB

        • memory/1432-94-0x0000025F5A1C0000-0x0000025F5A1D0000-memory.dmp

          Filesize

          64KB

        • memory/1432-20-0x0000025F5A0F0000-0x0000025F5A100000-memory.dmp

          Filesize

          64KB

        • memory/1432-98-0x0000025F5A280000-0x0000025F5A290000-memory.dmp

          Filesize

          64KB

        • memory/1432-102-0x0000025F5A290000-0x0000025F5A2A0000-memory.dmp

          Filesize

          64KB

        • memory/1432-101-0x0000025F5A1E0000-0x0000025F5A1F0000-memory.dmp

          Filesize

          64KB

        • memory/1432-112-0x0000025F5A2A0000-0x0000025F5A2B0000-memory.dmp

          Filesize

          64KB

        • memory/1432-80-0x0000025F5A180000-0x0000025F5A190000-memory.dmp

          Filesize

          64KB

        • memory/1432-22-0x0000025F5A100000-0x0000025F5A110000-memory.dmp

          Filesize

          64KB

        • memory/1432-2-0x0000025F59E60000-0x0000025F5A0D0000-memory.dmp

          Filesize

          2.4MB

        • memory/1432-137-0x0000025F5A2B0000-0x0000025F5A2C0000-memory.dmp

          Filesize

          64KB

        • memory/1432-165-0x0000025F5A2C0000-0x0000025F5A2D0000-memory.dmp

          Filesize

          64KB

        • memory/1432-164-0x0000025F5A210000-0x0000025F5A220000-memory.dmp

          Filesize

          64KB

        • memory/1432-168-0x0000025F5A2D0000-0x0000025F5A2E0000-memory.dmp

          Filesize

          64KB

        • memory/1432-167-0x0000025F5A220000-0x0000025F5A230000-memory.dmp

          Filesize

          64KB

        • memory/1432-207-0x0000025F5A2F0000-0x0000025F5A300000-memory.dmp

          Filesize

          64KB

        • memory/1432-205-0x0000025F5A240000-0x0000025F5A250000-memory.dmp

          Filesize

          64KB

        • memory/1432-206-0x0000025F5A250000-0x0000025F5A260000-memory.dmp

          Filesize

          64KB

        • memory/1432-204-0x0000025F5A2E0000-0x0000025F5A2F0000-memory.dmp

          Filesize

          64KB

        • memory/1432-199-0x0000025F5A230000-0x0000025F5A240000-memory.dmp

          Filesize

          64KB

        • memory/1432-227-0x0000025F5A300000-0x0000025F5A310000-memory.dmp

          Filesize

          64KB

        • memory/1432-226-0x0000025F5A260000-0x0000025F5A270000-memory.dmp

          Filesize

          64KB

        • memory/1432-254-0x0000025F5A310000-0x0000025F5A320000-memory.dmp

          Filesize

          64KB

        • memory/1432-253-0x0000025F5A270000-0x0000025F5A280000-memory.dmp

          Filesize

          64KB

        • memory/1432-257-0x0000025F5A320000-0x0000025F5A330000-memory.dmp

          Filesize

          64KB

        • memory/1432-256-0x0000025F5A280000-0x0000025F5A290000-memory.dmp

          Filesize

          64KB

        • memory/1432-265-0x0000025F5A290000-0x0000025F5A2A0000-memory.dmp

          Filesize

          64KB

        • memory/1432-267-0x0000025F5A340000-0x0000025F5A350000-memory.dmp

          Filesize

          64KB

        • memory/1432-266-0x0000025F5A330000-0x0000025F5A340000-memory.dmp

          Filesize

          64KB

        • memory/1432-270-0x0000025F5A350000-0x0000025F5A360000-memory.dmp

          Filesize

          64KB

        • memory/1432-269-0x0000025F5A2A0000-0x0000025F5A2B0000-memory.dmp

          Filesize

          64KB

        • memory/1432-276-0x0000025F5A360000-0x0000025F5A370000-memory.dmp

          Filesize

          64KB

        • memory/1432-275-0x0000025F5A2B0000-0x0000025F5A2C0000-memory.dmp

          Filesize

          64KB

        • memory/1432-283-0x0000025F5A2C0000-0x0000025F5A2D0000-memory.dmp

          Filesize

          64KB

        • memory/1432-284-0x0000025F5A370000-0x0000025F5A380000-memory.dmp

          Filesize

          64KB

        • memory/1432-291-0x0000025F5A2D0000-0x0000025F5A2E0000-memory.dmp

          Filesize

          64KB

        • memory/1432-292-0x0000025F5A380000-0x0000025F5A390000-memory.dmp

          Filesize

          64KB

        • memory/1432-294-0x0000025F59E60000-0x0000025F5A0D0000-memory.dmp

          Filesize

          2.4MB

        • memory/1432-300-0x0000025F5A120000-0x0000025F5A130000-memory.dmp

          Filesize

          64KB

        • memory/1432-310-0x0000025F5A1C0000-0x0000025F5A1D0000-memory.dmp

          Filesize

          64KB

        • memory/1432-309-0x0000025F5A1B0000-0x0000025F5A1C0000-memory.dmp

          Filesize

          64KB

        • memory/1432-308-0x0000025F5A1A0000-0x0000025F5A1B0000-memory.dmp

          Filesize

          64KB

        • memory/1432-307-0x0000025F5A190000-0x0000025F5A1A0000-memory.dmp

          Filesize

          64KB

        • memory/1432-306-0x0000025F5A180000-0x0000025F5A190000-memory.dmp

          Filesize

          64KB

        • memory/1432-305-0x0000025F5A170000-0x0000025F5A180000-memory.dmp

          Filesize

          64KB

        • memory/1432-304-0x0000025F5A160000-0x0000025F5A170000-memory.dmp

          Filesize

          64KB

        • memory/1432-303-0x0000025F5A150000-0x0000025F5A160000-memory.dmp

          Filesize

          64KB

        • memory/1432-302-0x0000025F5A140000-0x0000025F5A150000-memory.dmp

          Filesize

          64KB

        • memory/1432-301-0x0000025F5A130000-0x0000025F5A140000-memory.dmp

          Filesize

          64KB

        • memory/1432-299-0x0000025F5A110000-0x0000025F5A120000-memory.dmp

          Filesize

          64KB

        • memory/1432-298-0x0000025F5A100000-0x0000025F5A110000-memory.dmp

          Filesize

          64KB

        • memory/1432-19-0x0000025F5A0E0000-0x0000025F5A0F0000-memory.dmp

          Filesize

          64KB

        • memory/1432-17-0x0000025F5A0D0000-0x0000025F5A0E0000-memory.dmp

          Filesize

          64KB

        • memory/1432-12-0x0000025F58690000-0x0000025F58691000-memory.dmp

          Filesize

          4KB

        • memory/1432-136-0x0000025F5A200000-0x0000025F5A210000-memory.dmp

          Filesize

          64KB

        • memory/1432-297-0x0000025F5A0F0000-0x0000025F5A100000-memory.dmp

          Filesize

          64KB

        • memory/1432-296-0x0000025F5A0E0000-0x0000025F5A0F0000-memory.dmp

          Filesize

          64KB

        • memory/1432-295-0x0000025F5A0D0000-0x0000025F5A0E0000-memory.dmp

          Filesize

          64KB