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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250211-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250211-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/02/2025, 17:32

General

  • Target

    KYNIX 24255.jar

  • Size

    270KB

  • MD5

    c48786041bfbc49cd7a4ac809e1f89fb

  • SHA1

    9f4c00809b5f9fd270f6568c9388bfff11b4aa98

  • SHA256

    9b06f513705fd1f58888d74326cfb7c37daa41855e977ceb103e929398dab233

  • SHA512

    fa4d9b613dbf6b03ab758d413d7d8aa415e833b5556858b0d6cb4294f1c082205fa260b9b05dc76feb474bc8cc3ce61e39c27adc5f5236ca2b986b0a9c082163

  • SSDEEP

    6144:emTpRn5nfSWk9dPUQDytmwdj1AyWKnwwSK1K:3Rn5fSWk9dNidj1lVFK

Malware Config

Extracted

Family

strrat

C2

176.65.139.53:1999

127.0.0.1:1999

Attributes
  • license_id

    0801-GRBL-SUN9-LG8M-2C9C

  • plugins_url

    http://jbfrost.live/strigoi/server/?hwid=1&lid=m&ht=5

  • scheduled_task

    true

  • secondary_startup

    true

  • startup

    true

Signatures

  • STRRAT

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

  • Strrat family
  • 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.

  • 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 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:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar "C:\Users\Admin\AppData\Local\Temp\KYNIX 24255.jar"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:376
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\KYNIX 24255.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2832
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\KYNIX 24255.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4020
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\KYNIX 24255.jar"
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2912
      • 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\KYNIX 24255.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:3812
        • 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:2512
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:536
        • 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:1968
          • 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:4504
        • 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:3064
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:4080
          • 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:3148
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:5116

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna1682450169845766443.dll

        Filesize

        241KB

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2508704002-2325818048-3575902788-1000\83aa4cc77f591dfc2374580bbd95f6ba_1eefde30-3eae-49e6-8887-f6fb7b1c7c94

        Filesize

        45B

        MD5

        c8366ae350e7019aefc9d1e6e6a498c6

        SHA1

        5731d8a3e6568a5f2dfbbc87e3db9637df280b61

        SHA256

        11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

        SHA512

        33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

      • C:\Users\Admin\KYNIX 24255.jar

        Filesize

        270KB

        MD5

        c48786041bfbc49cd7a4ac809e1f89fb

        SHA1

        9f4c00809b5f9fd270f6568c9388bfff11b4aa98

        SHA256

        9b06f513705fd1f58888d74326cfb7c37daa41855e977ceb103e929398dab233

        SHA512

        fa4d9b613dbf6b03ab758d413d7d8aa415e833b5556858b0d6cb4294f1c082205fa260b9b05dc76feb474bc8cc3ce61e39c27adc5f5236ca2b986b0a9c082163

      • 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/376-108-0x0000024A80420000-0x0000024A80430000-memory.dmp

        Filesize

        64KB

      • memory/376-191-0x0000024A80360000-0x0000024A80370000-memory.dmp

        Filesize

        64KB

      • memory/376-19-0x0000024A802A0000-0x0000024A802B0000-memory.dmp

        Filesize

        64KB

      • memory/376-22-0x0000024A802B0000-0x0000024A802C0000-memory.dmp

        Filesize

        64KB

      • memory/376-23-0x0000024A802C0000-0x0000024A802D0000-memory.dmp

        Filesize

        64KB

      • memory/376-26-0x0000024A802D0000-0x0000024A802E0000-memory.dmp

        Filesize

        64KB

      • memory/376-35-0x0000024A80000000-0x0000024A80270000-memory.dmp

        Filesize

        2.4MB

      • memory/376-34-0x0000024A802F0000-0x0000024A80300000-memory.dmp

        Filesize

        64KB

      • memory/376-33-0x0000024A802E0000-0x0000024A802F0000-memory.dmp

        Filesize

        64KB

      • memory/376-36-0x0000024A80300000-0x0000024A80310000-memory.dmp

        Filesize

        64KB

      • memory/376-39-0x0000024A80310000-0x0000024A80320000-memory.dmp

        Filesize

        64KB

      • memory/376-38-0x0000024A80270000-0x0000024A80280000-memory.dmp

        Filesize

        64KB

      • memory/376-41-0x0000024A80280000-0x0000024A80290000-memory.dmp

        Filesize

        64KB

      • memory/376-42-0x0000024A80320000-0x0000024A80330000-memory.dmp

        Filesize

        64KB

      • memory/376-44-0x0000024A80290000-0x0000024A802A0000-memory.dmp

        Filesize

        64KB

      • memory/376-45-0x0000024A80330000-0x0000024A80340000-memory.dmp

        Filesize

        64KB

      • memory/376-48-0x0000024A80340000-0x0000024A80350000-memory.dmp

        Filesize

        64KB

      • memory/376-47-0x0000024A802A0000-0x0000024A802B0000-memory.dmp

        Filesize

        64KB

      • memory/376-52-0x0000024A80350000-0x0000024A80360000-memory.dmp

        Filesize

        64KB

      • memory/376-51-0x0000024A802B0000-0x0000024A802C0000-memory.dmp

        Filesize

        64KB

      • memory/376-54-0x0000024A80360000-0x0000024A80370000-memory.dmp

        Filesize

        64KB

      • memory/376-53-0x0000024A802C0000-0x0000024A802D0000-memory.dmp

        Filesize

        64KB

      • memory/376-57-0x0000024A80370000-0x0000024A80380000-memory.dmp

        Filesize

        64KB

      • memory/376-56-0x0000024A802D0000-0x0000024A802E0000-memory.dmp

        Filesize

        64KB

      • memory/376-61-0x0000024A80380000-0x0000024A80390000-memory.dmp

        Filesize

        64KB

      • memory/376-60-0x0000024A802F0000-0x0000024A80300000-memory.dmp

        Filesize

        64KB

      • memory/376-59-0x0000024A802E0000-0x0000024A802F0000-memory.dmp

        Filesize

        64KB

      • memory/376-65-0x0000024AFD7F0000-0x0000024AFD7F1000-memory.dmp

        Filesize

        4KB

      • memory/376-66-0x0000024A80300000-0x0000024A80310000-memory.dmp

        Filesize

        64KB

      • memory/376-67-0x0000024A80310000-0x0000024A80320000-memory.dmp

        Filesize

        64KB

      • memory/376-68-0x0000024A80390000-0x0000024A803A0000-memory.dmp

        Filesize

        64KB

      • memory/376-117-0x0000024A803B0000-0x0000024A803C0000-memory.dmp

        Filesize

        64KB

      • memory/376-73-0x0000024A803A0000-0x0000024A803B0000-memory.dmp

        Filesize

        64KB

      • memory/376-78-0x0000024A80330000-0x0000024A80340000-memory.dmp

        Filesize

        64KB

      • memory/376-82-0x0000024A80340000-0x0000024A80350000-memory.dmp

        Filesize

        64KB

      • memory/376-84-0x0000024A80350000-0x0000024A80360000-memory.dmp

        Filesize

        64KB

      • memory/376-83-0x0000024A803D0000-0x0000024A803E0000-memory.dmp

        Filesize

        64KB

      • memory/376-81-0x0000024A803C0000-0x0000024A803D0000-memory.dmp

        Filesize

        64KB

      • memory/376-80-0x0000024A803B0000-0x0000024A803C0000-memory.dmp

        Filesize

        64KB

      • memory/376-88-0x0000024A803E0000-0x0000024A803F0000-memory.dmp

        Filesize

        64KB

      • memory/376-87-0x0000024A80360000-0x0000024A80370000-memory.dmp

        Filesize

        64KB

      • memory/376-92-0x0000024A803F0000-0x0000024A80400000-memory.dmp

        Filesize

        64KB

      • memory/376-94-0x0000024A80380000-0x0000024A80390000-memory.dmp

        Filesize

        64KB

      • memory/376-95-0x0000024AFD7F0000-0x0000024AFD7F1000-memory.dmp

        Filesize

        4KB

      • memory/376-93-0x0000024A80400000-0x0000024A80410000-memory.dmp

        Filesize

        64KB

      • memory/376-91-0x0000024A80370000-0x0000024A80380000-memory.dmp

        Filesize

        64KB

      • memory/376-96-0x0000024A80410000-0x0000024A80420000-memory.dmp

        Filesize

        64KB

      • memory/376-99-0x0000024AFD7F0000-0x0000024AFD7F1000-memory.dmp

        Filesize

        4KB

      • memory/376-102-0x0000024AFD7F0000-0x0000024AFD7F1000-memory.dmp

        Filesize

        4KB

      • memory/376-101-0x0000024AFD7F0000-0x0000024AFD7F1000-memory.dmp

        Filesize

        4KB

      • memory/376-16-0x0000024AFD7F0000-0x0000024AFD7F1000-memory.dmp

        Filesize

        4KB

      • memory/376-110-0x0000024A80390000-0x0000024A803A0000-memory.dmp

        Filesize

        64KB

      • memory/376-111-0x0000024A80430000-0x0000024A80440000-memory.dmp

        Filesize

        64KB

      • memory/376-112-0x0000024AFD7F0000-0x0000024AFD7F1000-memory.dmp

        Filesize

        4KB

      • memory/376-17-0x0000024A80290000-0x0000024A802A0000-memory.dmp

        Filesize

        64KB

      • memory/376-114-0x0000024A803A0000-0x0000024A803B0000-memory.dmp

        Filesize

        64KB

      • memory/376-72-0x0000024A80320000-0x0000024A80330000-memory.dmp

        Filesize

        64KB

      • memory/376-118-0x0000024A803C0000-0x0000024A803D0000-memory.dmp

        Filesize

        64KB

      • memory/376-119-0x0000024A80450000-0x0000024A80460000-memory.dmp

        Filesize

        64KB

      • memory/376-121-0x0000024A80460000-0x0000024A80470000-memory.dmp

        Filesize

        64KB

      • memory/376-123-0x0000024A803D0000-0x0000024A803E0000-memory.dmp

        Filesize

        64KB

      • memory/376-124-0x0000024A80470000-0x0000024A80480000-memory.dmp

        Filesize

        64KB

      • memory/376-127-0x0000024A803E0000-0x0000024A803F0000-memory.dmp

        Filesize

        64KB

      • memory/376-128-0x0000024A80480000-0x0000024A80490000-memory.dmp

        Filesize

        64KB

      • memory/376-130-0x0000024AFD7F0000-0x0000024AFD7F1000-memory.dmp

        Filesize

        4KB

      • memory/376-132-0x0000024A803F0000-0x0000024A80400000-memory.dmp

        Filesize

        64KB

      • memory/376-133-0x0000024A80400000-0x0000024A80410000-memory.dmp

        Filesize

        64KB

      • memory/376-134-0x0000024A80490000-0x0000024A804A0000-memory.dmp

        Filesize

        64KB

      • memory/376-136-0x0000024A804A0000-0x0000024A804B0000-memory.dmp

        Filesize

        64KB

      • memory/376-138-0x0000024AFD7F0000-0x0000024AFD7F1000-memory.dmp

        Filesize

        4KB

      • memory/376-143-0x0000024A80410000-0x0000024A80420000-memory.dmp

        Filesize

        64KB

      • memory/376-144-0x0000024AFD7F0000-0x0000024AFD7F1000-memory.dmp

        Filesize

        4KB

      • memory/376-146-0x0000024A80420000-0x0000024A80430000-memory.dmp

        Filesize

        64KB

      • memory/376-147-0x0000024A80430000-0x0000024A80440000-memory.dmp

        Filesize

        64KB

      • memory/376-148-0x0000024A80440000-0x0000024A80450000-memory.dmp

        Filesize

        64KB

      • memory/376-149-0x0000024A80450000-0x0000024A80460000-memory.dmp

        Filesize

        64KB

      • memory/376-153-0x0000024A80460000-0x0000024A80470000-memory.dmp

        Filesize

        64KB

      • memory/376-156-0x0000024A80470000-0x0000024A80480000-memory.dmp

        Filesize

        64KB

      • memory/376-157-0x0000024A80480000-0x0000024A80490000-memory.dmp

        Filesize

        64KB

      • memory/376-158-0x0000024A80490000-0x0000024A804A0000-memory.dmp

        Filesize

        64KB

      • memory/376-160-0x0000024A804B0000-0x0000024A804C0000-memory.dmp

        Filesize

        64KB

      • memory/376-159-0x0000024A804A0000-0x0000024A804B0000-memory.dmp

        Filesize

        64KB

      • memory/376-173-0x0000024AFD7F0000-0x0000024AFD7F1000-memory.dmp

        Filesize

        4KB

      • memory/376-174-0x0000024A80000000-0x0000024A80270000-memory.dmp

        Filesize

        2.4MB

      • memory/376-175-0x0000024A80270000-0x0000024A80280000-memory.dmp

        Filesize

        64KB

      • memory/376-177-0x0000024A80280000-0x0000024A80290000-memory.dmp

        Filesize

        64KB

      • memory/376-189-0x0000024A803D0000-0x0000024A803E0000-memory.dmp

        Filesize

        64KB

      • memory/376-194-0x0000024A80390000-0x0000024A803A0000-memory.dmp

        Filesize

        64KB

      • memory/376-193-0x0000024A80380000-0x0000024A80390000-memory.dmp

        Filesize

        64KB

      • memory/376-192-0x0000024A80370000-0x0000024A80380000-memory.dmp

        Filesize

        64KB

      • memory/376-115-0x0000024A80440000-0x0000024A80450000-memory.dmp

        Filesize

        64KB

      • memory/376-190-0x0000024A80350000-0x0000024A80360000-memory.dmp

        Filesize

        64KB

      • memory/376-188-0x0000024A80330000-0x0000024A80340000-memory.dmp

        Filesize

        64KB

      • memory/376-187-0x0000024A80320000-0x0000024A80330000-memory.dmp

        Filesize

        64KB

      • memory/376-186-0x0000024A80310000-0x0000024A80320000-memory.dmp

        Filesize

        64KB

      • memory/376-185-0x0000024A80300000-0x0000024A80310000-memory.dmp

        Filesize

        64KB

      • memory/376-184-0x0000024A802F0000-0x0000024A80300000-memory.dmp

        Filesize

        64KB

      • memory/376-183-0x0000024A802E0000-0x0000024A802F0000-memory.dmp

        Filesize

        64KB

      • memory/376-182-0x0000024A802D0000-0x0000024A802E0000-memory.dmp

        Filesize

        64KB

      • memory/376-181-0x0000024A802C0000-0x0000024A802D0000-memory.dmp

        Filesize

        64KB

      • memory/376-14-0x0000024A80280000-0x0000024A80290000-memory.dmp

        Filesize

        64KB

      • memory/376-180-0x0000024A802B0000-0x0000024A802C0000-memory.dmp

        Filesize

        64KB

      • memory/376-179-0x0000024A802A0000-0x0000024A802B0000-memory.dmp

        Filesize

        64KB

      • memory/376-178-0x0000024A80290000-0x0000024A802A0000-memory.dmp

        Filesize

        64KB

      • memory/376-176-0x0000024A804B0000-0x0000024A804C0000-memory.dmp

        Filesize

        64KB

      • memory/376-2-0x0000024A80000000-0x0000024A80270000-memory.dmp

        Filesize

        2.4MB

      • memory/376-12-0x0000024A80270000-0x0000024A80280000-memory.dmp

        Filesize

        64KB

      • memory/2832-254-0x00000183D0900000-0x00000183D0901000-memory.dmp

        Filesize

        4KB

      • memory/2832-246-0x00000183D0900000-0x00000183D0901000-memory.dmp

        Filesize

        4KB

      • memory/3812-291-0x000001CDF95F0000-0x000001CDF95F1000-memory.dmp

        Filesize

        4KB

      • memory/3812-309-0x000001CDF95F0000-0x000001CDF95F1000-memory.dmp

        Filesize

        4KB