Analysis

  • max time kernel
    149s
  • 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
    22-06-2023 06:08

General

  • Target

    PO 7648.jar

  • Size

    218KB

  • MD5

    66e7309c30d55f9102671a834e949e63

  • SHA1

    caebd51236950f7cdb371bad87c722ba555bf2a4

  • SHA256

    9291fbf0bd2d82742c20901fd068e9e36fc7e8dcc644716f8efb863514cbda8e

  • SHA512

    083a944478d54f808c080880e02031ce0e6052f44df3e323a8e442f2fa2d1be713a16c175f72b9f5066be2199f12a6af864ba197ccbefdc0adaff709a2d348b8

  • SSDEEP

    6144:hEw1+EZBz60uvSx/q7odBgvZqsTS+YkPpx625M7iRAeqW6Ke:KhEZ96FvX8LgvZqsTS+YkPpQuM7SAeRe

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\PO 7648.jar"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4848
    • 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\PO 7648.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1584
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\PO 7648.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4860
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\PO 7648.jar"
          4⤵
          • Creates scheduled task(s)
          PID:1696
      • 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\PO 7648.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2556
        • 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:2872
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4968
        • 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:2856
          • 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:2616
        • 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:3452
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:3408
          • 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:2492
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:416

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

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

        Filesize

        50B

        MD5

        64d85214b2d890929415bd5e960ce1ee

        SHA1

        f46881e9e400be07c6f13e166ab146cca0761a54

        SHA256

        8273ec8cfaa106524da31c99595ac09ac2c9e6583f5d1cc5c69d26455b48f78a

        SHA512

        33c731232a34aa42e90c6773cb6ed5e14901916ff8037209441d52f79285c1f913ea70f05f79b0818c39549f9de75f3b6f5e5ee1f75655691144d5b8a80c5343

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

        Filesize

        50B

        MD5

        2d86ee2a737c9a23bc684f0d979af0b8

        SHA1

        2664257061c505630d5e44e5465d38f60e6df5a6

        SHA256

        455c59260214de11006a91f0cde5912d64fcb6cfecbf1d84cb37a833f4839a73

        SHA512

        948d4e6d013bbdc2775851877d0132bfce3f4ac7187fecb9821c0d6d01c6dbab9d32a2098b252eca99024c01ff4d979e2a8eeceba932fbd206d209056de0d065

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna7877091053447570158.dll

        Filesize

        241KB

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2178924671-3779044592-2825503497-1000\83aa4cc77f591dfc2374580bbd95f6ba_8bd462ce-8bab-42b0-a8ec-a97de40a86d1

        Filesize

        45B

        MD5

        c8366ae350e7019aefc9d1e6e6a498c6

        SHA1

        5731d8a3e6568a5f2dfbbc87e3db9637df280b61

        SHA256

        11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

        SHA512

        33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

      • C:\Users\Admin\AppData\Roaming\PO 7648.jar

        Filesize

        218KB

        MD5

        66e7309c30d55f9102671a834e949e63

        SHA1

        caebd51236950f7cdb371bad87c722ba555bf2a4

        SHA256

        9291fbf0bd2d82742c20901fd068e9e36fc7e8dcc644716f8efb863514cbda8e

        SHA512

        083a944478d54f808c080880e02031ce0e6052f44df3e323a8e442f2fa2d1be713a16c175f72b9f5066be2199f12a6af864ba197ccbefdc0adaff709a2d348b8

      • C:\Users\Admin\AppData\Roaming\PO 7648.jar

        Filesize

        218KB

        MD5

        66e7309c30d55f9102671a834e949e63

        SHA1

        caebd51236950f7cdb371bad87c722ba555bf2a4

        SHA256

        9291fbf0bd2d82742c20901fd068e9e36fc7e8dcc644716f8efb863514cbda8e

        SHA512

        083a944478d54f808c080880e02031ce0e6052f44df3e323a8e442f2fa2d1be713a16c175f72b9f5066be2199f12a6af864ba197ccbefdc0adaff709a2d348b8

      • 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\PO 7648.jar

        Filesize

        218KB

        MD5

        66e7309c30d55f9102671a834e949e63

        SHA1

        caebd51236950f7cdb371bad87c722ba555bf2a4

        SHA256

        9291fbf0bd2d82742c20901fd068e9e36fc7e8dcc644716f8efb863514cbda8e

        SHA512

        083a944478d54f808c080880e02031ce0e6052f44df3e323a8e442f2fa2d1be713a16c175f72b9f5066be2199f12a6af864ba197ccbefdc0adaff709a2d348b8

      • 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/1584-246-0x0000000002F40000-0x0000000002F41000-memory.dmp

        Filesize

        4KB

      • memory/1584-242-0x0000000002F40000-0x0000000002F41000-memory.dmp

        Filesize

        4KB

      • memory/2556-273-0x0000000001370000-0x0000000001371000-memory.dmp

        Filesize

        4KB

      • memory/2556-297-0x0000000001370000-0x0000000001371000-memory.dmp

        Filesize

        4KB

      • memory/2556-294-0x0000000001370000-0x0000000001371000-memory.dmp

        Filesize

        4KB

      • memory/4848-195-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-175-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-181-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-177-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-225-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-216-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-215-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-143-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-212-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-209-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-206-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-193-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-191-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-188-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-186-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-184-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB

      • memory/4848-162-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB