Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-09-2024 01:19

General

  • Target

    461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe

  • Size

    480KB

  • MD5

    aac338140e178a3cac423d3454cc7467

  • SHA1

    a9c195e15b4109d4ece1309fb4e3b3bd77145421

  • SHA256

    461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb

  • SHA512

    a96b2c8c985feccbc385a8ba1e7583be6913db7da15244b136c203f7ca320a03727425f3927c21157eae0c4da3fbbdd8fb71373655c6824544296ec66df834f2

  • SSDEEP

    12288:PkQNy5kuH2lZ6r4os6WQMiyvtJMDiXxJfrJyru:XvuHTr4J7Qw1JJXxJ0ru

Malware Config

Extracted

Family

strrat

C2

93.185.156.124:1912

127.0.0.1:1912

Attributes
  • license_id

    khonsari

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 1 IoCs
  • Loads dropped DLL 2 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 36 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:\Users\Admin\AppData\Local\Temp\461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe
    "C:\Users\Admin\AppData\Local\Temp\461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1548
    • C:\Users\Admin\AppData\Local\Temp\461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe
      "C:\Users\Admin\AppData\Local\Temp\461d7bbff67fa45958735a68976e83143b072eb35f2275086e99212d8fd165cb.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1904
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c start "" "C:\Users\Admin\AppData\Local\Temp\A.jar"
        3⤵
        • Checks computer location settings
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:3796
        • C:\Program Files\Java\jre-1.8\bin\javaw.exe
          "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Local\Temp\A.jar"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1732
          • C:\Program Files\Java\jre-1.8\bin\java.exe
            "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\A.jar"
            5⤵
            • Drops startup file
            • Loads dropped DLL
            • Adds Run key to start application
            • Suspicious use of WriteProcessMemory
            PID:3768
            • C:\Windows\SYSTEM32\cmd.exe
              cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\A.jar"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:1360
              • C:\Windows\system32\schtasks.exe
                schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\A.jar"
                7⤵
                • Scheduled Task/Job: Scheduled Task
                PID:1284
            • 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\A.jar"
              6⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1464
              • C:\Windows\SYSTEM32\cmd.exe
                cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4916
                • C:\Windows\System32\Wbem\WMIC.exe
                  wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
                  8⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1776
              • C:\Windows\SYSTEM32\cmd.exe
                cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:2888
                • C:\Windows\System32\Wbem\WMIC.exe
                  wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
                  8⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:3028
              • C:\Windows\SYSTEM32\cmd.exe
                cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4796
                • C:\Windows\System32\Wbem\WMIC.exe
                  wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
                  8⤵
                    PID:1124
                • C:\Windows\SYSTEM32\cmd.exe
                  cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
                  7⤵
                  • Suspicious use of WriteProcessMemory
                  PID:4320
                  • C:\Windows\System32\Wbem\WMIC.exe
                    wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
                    8⤵
                      PID:3968

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        MD5

        d41d8cd98f00b204e9800998ecf8427e

        SHA1

        da39a3ee5e6b4b0d3255bfef95601890afd80709

        SHA256

        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

        SHA512

        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

      • C:\Users\Admin\AppData\Local\Temp\A.jar

        Filesize

        92KB

        MD5

        105a14c6fce083e80f49b30db88ec915

        SHA1

        46187697a87562210e785917ce6ca16aeb4912b3

        SHA256

        7e5adae008afee158168b1943fcc41157c7de63ab4792cc5eba8d1830edd6d65

        SHA512

        2322eeeb100b644d53641ec3c1b0588579565636a2ea934924931f6f77b156b6d4e5925a2f36b0520e1f568d771860af53e9f3c39bb5238f7e7520389692c963

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna7778665112730782060.dll

        Filesize

        241KB

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2629364133-3182087385-364449604-1000\83aa4cc77f591dfc2374580bbd95f6ba_83e33dcf-e635-4313-9cdc-036589dffc77

        Filesize

        45B

        MD5

        c8366ae350e7019aefc9d1e6e6a498c6

        SHA1

        5731d8a3e6568a5f2dfbbc87e3db9637df280b61

        SHA256

        11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

        SHA512

        33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

      • 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/1464-176-0x0000027A0DAA0000-0x0000027A0DAA1000-memory.dmp

        Filesize

        4KB

      • memory/1548-5-0x0000000074DA0000-0x0000000075550000-memory.dmp

        Filesize

        7.7MB

      • memory/1548-10-0x0000000006050000-0x00000000060B0000-memory.dmp

        Filesize

        384KB

      • memory/1548-11-0x0000000008850000-0x00000000088EC000-memory.dmp

        Filesize

        624KB

      • memory/1548-9-0x0000000074DA0000-0x0000000075550000-memory.dmp

        Filesize

        7.7MB

      • memory/1548-8-0x0000000074DAE000-0x0000000074DAF000-memory.dmp

        Filesize

        4KB

      • memory/1548-17-0x0000000074DA0000-0x0000000075550000-memory.dmp

        Filesize

        7.7MB

      • memory/1548-7-0x0000000005150000-0x0000000005160000-memory.dmp

        Filesize

        64KB

      • memory/1548-0-0x0000000074DAE000-0x0000000074DAF000-memory.dmp

        Filesize

        4KB

      • memory/1548-6-0x00000000062C0000-0x0000000006334000-memory.dmp

        Filesize

        464KB

      • memory/1548-4-0x0000000004C50000-0x0000000004C5A000-memory.dmp

        Filesize

        40KB

      • memory/1548-3-0x0000000004C90000-0x0000000004D22000-memory.dmp

        Filesize

        584KB

      • memory/1548-2-0x00000000051A0000-0x0000000005744000-memory.dmp

        Filesize

        5.6MB

      • memory/1548-1-0x00000000001D0000-0x000000000024C000-memory.dmp

        Filesize

        496KB

      • memory/1732-22-0x000002970B560000-0x000002970B7D0000-memory.dmp

        Filesize

        2.4MB

      • memory/1732-98-0x0000029709C70000-0x0000029709C71000-memory.dmp

        Filesize

        4KB

      • memory/1732-99-0x000002970B560000-0x000002970B7D0000-memory.dmp

        Filesize

        2.4MB

      • memory/1732-97-0x0000029709C70000-0x0000029709C71000-memory.dmp

        Filesize

        4KB

      • memory/1732-94-0x0000029709C70000-0x0000029709C71000-memory.dmp

        Filesize

        4KB

      • memory/1732-82-0x0000029709C70000-0x0000029709C71000-memory.dmp

        Filesize

        4KB

      • memory/1732-76-0x0000029709C70000-0x0000029709C71000-memory.dmp

        Filesize

        4KB

      • memory/1732-73-0x0000029709C70000-0x0000029709C71000-memory.dmp

        Filesize

        4KB

      • memory/1732-45-0x0000029709C70000-0x0000029709C71000-memory.dmp

        Filesize

        4KB

      • memory/1904-14-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1904-12-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/3768-124-0x0000023C4C3E0000-0x0000023C4C3E1000-memory.dmp

        Filesize

        4KB

      • memory/3768-150-0x0000023C4C3E0000-0x0000023C4C3E1000-memory.dmp

        Filesize

        4KB