Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230621-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-06-2023 11:20

General

  • Target

    01953499.jar

  • Size

    219KB

  • MD5

    4528ca1cd5111138dbd966f65aa18fd4

  • SHA1

    51288703a62480e7a80fc6e2f43d96f230324537

  • SHA256

    924c2bc4af402c80d0d9840cb97ced94cf09755df952c02f43d0f23b5f6ed657

  • SHA512

    7a45b93c648bdda6b42853face3e41f39ae057aa136af0d664bb31c8f8e09d4ab8534e15d833f8dfacad3b6bb538343dd942855ed3f9b7010691ffef4db9077c

  • SSDEEP

    6144:j0BJ66R8sBvhIm5ETEXBr/8D9b1WbhjPf7jtjCi:vUB5bGSSZyjfAi

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
  • 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 24 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:\ProgramData\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\01953499.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2784
    • C:\Program Files\Java\jre1.8.0_66\bin\java.exe
      "C:\Program Files\Java\jre1.8.0_66\bin\java.exe" -jar "C:\Users\Admin\01953499.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:3972
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\01953499.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1956
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\01953499.jar"
          4⤵
          • Creates scheduled task(s)
          PID:2900
      • C:\Program Files\Java\jre1.8.0_66\bin\java.exe
        "C:\Program Files\Java\jre1.8.0_66\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\01953499.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1680
        • 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:3712
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3084
        • 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:3980
          • 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:4884
        • 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:1968
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:1960
          • 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:4680
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:2604

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\01953499.jar

        Filesize

        219KB

        MD5

        4528ca1cd5111138dbd966f65aa18fd4

        SHA1

        51288703a62480e7a80fc6e2f43d96f230324537

        SHA256

        924c2bc4af402c80d0d9840cb97ced94cf09755df952c02f43d0f23b5f6ed657

        SHA512

        7a45b93c648bdda6b42853face3e41f39ae057aa136af0d664bb31c8f8e09d4ab8534e15d833f8dfacad3b6bb538343dd942855ed3f9b7010691ffef4db9077c

      • C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp

        Filesize

        50B

        MD5

        07a410d9d5b0c5fba116a89b22c4bbde

        SHA1

        2e8682a6778a8670a0ef5eccbd36c5e4d49835c2

        SHA256

        0d34cb6cf0d9e32db2c127edd6dcafbde1dc901dea85386b456176d4a63c1eaf

        SHA512

        00bcda03a75be252902d776231e713b5d2690889178e8cc602d9a194ae1b94d0759a609715a710977374eae6038105b24b860e77e94abe334b890792482dc6d7

      • C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp

        Filesize

        50B

        MD5

        2dbf874340e4e0a27fddb3297575585d

        SHA1

        ebd11d9bf97d4fe310dc3fc16f543f507be215c6

        SHA256

        d4414d372df5814d6fd9fff1afa02f5d8378cd79635bf5c48f46942735371e7b

        SHA512

        858a6376ac89843617a0d35697b854677ec27ab77f4afdbf6ee7dc50111b19abe9bf606936b863e1ff4ed9dc6f1312c4b5b3983283e90b7db1b3f316692e07de

      • C:\Users\Admin\01953499.jar

        Filesize

        219KB

        MD5

        4528ca1cd5111138dbd966f65aa18fd4

        SHA1

        51288703a62480e7a80fc6e2f43d96f230324537

        SHA256

        924c2bc4af402c80d0d9840cb97ced94cf09755df952c02f43d0f23b5f6ed657

        SHA512

        7a45b93c648bdda6b42853face3e41f39ae057aa136af0d664bb31c8f8e09d4ab8534e15d833f8dfacad3b6bb538343dd942855ed3f9b7010691ffef4db9077c

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna2303080363468725863.dll

        Filesize

        241KB

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Roaming\01953499.jar

        Filesize

        219KB

        MD5

        4528ca1cd5111138dbd966f65aa18fd4

        SHA1

        51288703a62480e7a80fc6e2f43d96f230324537

        SHA256

        924c2bc4af402c80d0d9840cb97ced94cf09755df952c02f43d0f23b5f6ed657

        SHA512

        7a45b93c648bdda6b42853face3e41f39ae057aa136af0d664bb31c8f8e09d4ab8534e15d833f8dfacad3b6bb538343dd942855ed3f9b7010691ffef4db9077c

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-922299981-3641064733-3870770889-1000\83aa4cc77f591dfc2374580bbd95f6ba_0d8e19ec-0f76-45ea-89c4-00bdc8e45654

        Filesize

        45B

        MD5

        c8366ae350e7019aefc9d1e6e6a498c6

        SHA1

        5731d8a3e6568a5f2dfbbc87e3db9637df280b61

        SHA256

        11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

        SHA512

        33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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

        Filesize

        1.4MB

        MD5

        acfb5b5fd9ee10bf69497792fd469f85

        SHA1

        0e0845217c4907822403912ad6828d8e0b256208

        SHA256

        b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e

        SHA512

        e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa

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

        Filesize

        2.6MB

        MD5

        2f4a99c2758e72ee2b59a73586a2322f

        SHA1

        af38e7c4d0fc73c23ecd785443705bfdee5b90bf

        SHA256

        24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5

        SHA512

        b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494

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

        Filesize

        4.1MB

        MD5

        b33387e15ab150a7bf560abdc73c3bec

        SHA1

        66b8075784131f578ef893fd7674273f709b9a4c

        SHA256

        2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491

        SHA512

        25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279

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

        Filesize

        772KB

        MD5

        e1aa38a1e78a76a6de73efae136cdb3a

        SHA1

        c463da71871f780b2e2e5dba115d43953b537daf

        SHA256

        2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609

        SHA512

        fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d

      • 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/1680-286-0x0000000000980000-0x0000000000981000-memory.dmp

        Filesize

        4KB

      • memory/1680-291-0x0000000000980000-0x0000000000981000-memory.dmp

        Filesize

        4KB

      • memory/2784-196-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-207-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-178-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-202-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-218-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-216-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-183-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-184-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-156-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-186-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-143-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-206-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-203-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-201-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-193-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-187-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/2784-173-0x0000000002B70000-0x0000000002B71000-memory.dmp

        Filesize

        4KB

      • memory/3972-236-0x0000000003000000-0x0000000003001000-memory.dmp

        Filesize

        4KB

      • memory/3972-235-0x0000000003000000-0x0000000003001000-memory.dmp

        Filesize

        4KB