Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    07/02/2023, 04:11

General

  • Target

    KENBAXTERCLIENTCOPY.js

  • Size

    3.8MB

  • MD5

    c7b0633dd0db084edd9264e1bece25f1

  • SHA1

    acfbc379e088ff2e65f394cc8c861192abed8117

  • SHA256

    5d85139835dee61ab951d98035d73d72a6e6f732b8974c261fa19c6642d47dd0

  • SHA512

    40e59df5525d1b9bbb4007047b95ffe19ad03f58c8c785f9b9772622340665ae361a7083578f910238efbf48855cd143ee737d5c05b23503c65ad3465f71b441

  • SSDEEP

    3072:qrYedmaAO8Or8YETkPjuYf/J4foavMLBjqybnW80/ng7sdiiQzs1ekLQzFCDUrWc:G6R1xQqU

Malware Config

Signatures

  • STRRAT

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

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Blocklisted process makes network request 14 IoCs
  • Drops startup file 3 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.

  • Enumerates physical storage devices 1 TTPs

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

  • 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 42 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\KENBAXTERCLIENTCOPY.js
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1388
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\nCHjYOHJaC.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:1032
    • C:\Program Files\Java\jre7\bin\javaw.exe
      "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\xtoaketrlk.txt"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1228
      • C:\Program Files\Java\jre7\bin\java.exe
        "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\xtoaketrlk.txt"
        3⤵
        • Drops startup file
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:2012
        • C:\Program Files\Java\jre7\bin\java.exe
          "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\xtoaketrlk.txt"
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1492
          • C:\Windows\system32\cmd.exe
            cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1556
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1028
          • C:\Windows\system32\cmd.exe
            cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:956
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
              6⤵
                PID:1976
            • C:\Windows\system32\cmd.exe
              cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1632
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
                6⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:1344
            • C:\Windows\system32\cmd.exe
              cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:292
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list
                6⤵
                  PID:1724
            • C:\Windows\system32\cmd.exe
              cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\xtoaketrlk.txt"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:1248
              • C:\Windows\system32\schtasks.exe
                schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\xtoaketrlk.txt"
                5⤵
                • Creates scheduled task(s)
                PID:2008

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna4578775759035789493.dll

              Filesize

              241KB

              MD5

              e02979ecd43bcc9061eb2b494ab5af50

              SHA1

              3122ac0e751660f646c73b10c4f79685aa65c545

              SHA256

              a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

              SHA512

              1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

            • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3406023954-474543476-3319432036-1000\83aa4cc77f591dfc2374580bbd95f6ba_5a633035-f6f6-46e5-abe0-a504cf633ef0

              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\AppData\Roaming\nCHjYOHJaC.js

              Filesize

              346KB

              MD5

              a7ccd0d66b1df72db88776e85375f787

              SHA1

              e5ecfe8ecec99624088c234d0183bbc8413d5d15

              SHA256

              58e82066325488a8e64a8b191e9b940d1700630a0279fa2a2cce0402487712ba

              SHA512

              2c3f76448b12037223b6ad581ba85be6a82f89d9287394836f72b7170c8bf505c0aa2321ea8a302e337f7e084b59f51963893c9dfc9d36068a6c7aeaf17ebc7d

            • C:\Users\Admin\AppData\Roaming\xtoaketrlk.txt

              Filesize

              90KB

              MD5

              4c7a8f18a3fd023c50a6e0cf6acc90e0

              SHA1

              cfd03fbba652ba64f6122d87bc14aa995196bf74

              SHA256

              3b8680bc4f68f3bc15d29e0f2adb5974e8042662c992c08cc750e395f0df93ba

              SHA512

              c290449e786ea33aeabc47e535c3bcf6560e39f99322cde9045b4e69b9cfc0e7dca1558d28e96236126ee6f9facc96d1858f9438b340638fd14b75c619c1983e

            • C:\Users\Admin\AppData\Roaming\xtoaketrlk.txt

              Filesize

              90KB

              MD5

              4c7a8f18a3fd023c50a6e0cf6acc90e0

              SHA1

              cfd03fbba652ba64f6122d87bc14aa995196bf74

              SHA256

              3b8680bc4f68f3bc15d29e0f2adb5974e8042662c992c08cc750e395f0df93ba

              SHA512

              c290449e786ea33aeabc47e535c3bcf6560e39f99322cde9045b4e69b9cfc0e7dca1558d28e96236126ee6f9facc96d1858f9438b340638fd14b75c619c1983e

            • 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

            • C:\Users\Admin\xtoaketrlk.txt

              Filesize

              90KB

              MD5

              4c7a8f18a3fd023c50a6e0cf6acc90e0

              SHA1

              cfd03fbba652ba64f6122d87bc14aa995196bf74

              SHA256

              3b8680bc4f68f3bc15d29e0f2adb5974e8042662c992c08cc750e395f0df93ba

              SHA512

              c290449e786ea33aeabc47e535c3bcf6560e39f99322cde9045b4e69b9cfc0e7dca1558d28e96236126ee6f9facc96d1858f9438b340638fd14b75c619c1983e

            • \Users\Admin\AppData\Local\Temp\jna-63116079\jna4578775759035789493.dll

              Filesize

              241KB

              MD5

              e02979ecd43bcc9061eb2b494ab5af50

              SHA1

              3122ac0e751660f646c73b10c4f79685aa65c545

              SHA256

              a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

              SHA512

              1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

            • \Users\Admin\AppData\Local\Temp\jna-63116079\jna5241357033795513922.dll

              Filesize

              241KB

              MD5

              e02979ecd43bcc9061eb2b494ab5af50

              SHA1

              3122ac0e751660f646c73b10c4f79685aa65c545

              SHA256

              a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

              SHA512

              1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

            • memory/1228-65-0x0000000002270000-0x0000000005270000-memory.dmp

              Filesize

              48.0MB

            • memory/1228-57-0x000007FEFBF91000-0x000007FEFBF93000-memory.dmp

              Filesize

              8KB

            • memory/1492-98-0x00000000021D0000-0x00000000051D0000-memory.dmp

              Filesize

              48.0MB

            • memory/1492-117-0x00000000021D0000-0x00000000051D0000-memory.dmp

              Filesize

              48.0MB

            • memory/2012-81-0x0000000002090000-0x0000000005090000-memory.dmp

              Filesize

              48.0MB