Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    08-12-2021 16:07

General

  • Target

    js-decoded-1.js

  • Size

    346KB

  • MD5

    241d3041e2bb264cf886eff9fc3de24e

  • SHA1

    7f3fe68b0ef727fca62441cff8eea28c5cd51941

  • SHA256

    e817bd6a89f5bc3ee448e3c39e5c4739cf010bb815d087ecdd1b5e1f30c04959

  • SHA512

    078b8f61b2afeefdf283d6e8f6b33986fc3500788b8d77e7672fc6aae70221ac140d850f91401a3e65a8996f49b4c9babdabac7071d7ea40adc84c62e9bbddc0

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 13 IoCs
  • Drops startup file 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 4 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\js-decoded-1.js
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1520
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\IwhBHZSsWd.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      • Adds Run key to start application
      PID:428
    • C:\Program Files\Java\jre7\bin\javaw.exe
      "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\tullyas.txt"
      2⤵
        PID:1404
        • C:\Program Files\Java\jre7\bin\java.exe
          "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\tullyas.txt"
          3⤵
          • Drops startup file
          • Loads dropped DLL
          • Adds Run key to start application
          • Suspicious use of WriteProcessMemory
          PID:1616
          • C:\Program Files\Java\jre7\bin\java.exe
            "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\tullyas.txt"
            4⤵
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:572
            • 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:588
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
                6⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:1192
            • 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:952
            • 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:1588
            • 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:1708
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list
                6⤵
                  PID:1136
            • C:\Windows\system32\cmd.exe
              cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\tullyas.txt"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:1720
              • C:\Windows\system32\schtasks.exe
                schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\tullyas.txt"
                5⤵
                • Creates scheduled task(s)
                PID:1916
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1684
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
        1⤵
          PID:576

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna2667559757946257276.dll

          MD5

          e02979ecd43bcc9061eb2b494ab5af50

          SHA1

          3122ac0e751660f646c73b10c4f79685aa65c545

          SHA256

          a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

          SHA512

          1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

        • C:\Users\Admin\AppData\Roaming\IwhBHZSsWd.js

          MD5

          be3598b9ef31862aa34d1b79014c22de

          SHA1

          4d102790ec4bb3f6c95dc5097355c5f03c27beaf

          SHA256

          69ffc81cf2305ba7dedc79679eb1929dbdbf9e0a4cd6a53193c0367279750b4c

          SHA512

          778ad27bedbe8c275a5abdcba6f9a1ba43d8963ca67bbc768265fe6e5dcd380e1c7a191f7471364f5d6c22b1ba954819574f185141c631b2deca53a3ba6f7c01

        • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2329389628-4064185017-3901522362-1000\83aa4cc77f591dfc2374580bbd95f6ba_3bd845b8-ce6a-4337-9974-31490196462a

          MD5

          c8366ae350e7019aefc9d1e6e6a498c6

          SHA1

          5731d8a3e6568a5f2dfbbc87e3db9637df280b61

          SHA256

          11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

          SHA512

          33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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

          MD5

          acfb5b5fd9ee10bf69497792fd469f85

          SHA1

          0e0845217c4907822403912ad6828d8e0b256208

          SHA256

          b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e

          SHA512

          e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa

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

          MD5

          2f4a99c2758e72ee2b59a73586a2322f

          SHA1

          af38e7c4d0fc73c23ecd785443705bfdee5b90bf

          SHA256

          24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5

          SHA512

          b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494

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

          MD5

          b33387e15ab150a7bf560abdc73c3bec

          SHA1

          66b8075784131f578ef893fd7674273f709b9a4c

          SHA256

          2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491

          SHA512

          25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279

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

          MD5

          e1aa38a1e78a76a6de73efae136cdb3a

          SHA1

          c463da71871f780b2e2e5dba115d43953b537daf

          SHA256

          2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609

          SHA512

          fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d

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

          MD5

          4a769959e2ee2785d32ef2161f28cd8b

          SHA1

          e31b455b90081313e3b7405db3efe1582fe39daa

          SHA256

          496536d34981fc4155772fe136930ef13cf16116a4df18e6261dd084fce40b21

          SHA512

          8ef798581834a365f8a7649572c8683e9294cb950917b9c1e9b6ae60bf48b2e4d0e3be312843e398868f31835f276df24f4c5c2b6fb07b654322a8d5351815ca

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

          MD5

          4a769959e2ee2785d32ef2161f28cd8b

          SHA1

          e31b455b90081313e3b7405db3efe1582fe39daa

          SHA256

          496536d34981fc4155772fe136930ef13cf16116a4df18e6261dd084fce40b21

          SHA512

          8ef798581834a365f8a7649572c8683e9294cb950917b9c1e9b6ae60bf48b2e4d0e3be312843e398868f31835f276df24f4c5c2b6fb07b654322a8d5351815ca

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

          MD5

          acfb5b5fd9ee10bf69497792fd469f85

          SHA1

          0e0845217c4907822403912ad6828d8e0b256208

          SHA256

          b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e

          SHA512

          e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa

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

          MD5

          2f4a99c2758e72ee2b59a73586a2322f

          SHA1

          af38e7c4d0fc73c23ecd785443705bfdee5b90bf

          SHA256

          24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5

          SHA512

          b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494

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

          MD5

          b33387e15ab150a7bf560abdc73c3bec

          SHA1

          66b8075784131f578ef893fd7674273f709b9a4c

          SHA256

          2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491

          SHA512

          25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279

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

          MD5

          e1aa38a1e78a76a6de73efae136cdb3a

          SHA1

          c463da71871f780b2e2e5dba115d43953b537daf

          SHA256

          2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609

          SHA512

          fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d

        • C:\Users\Admin\tullyas.txt

          MD5

          4a769959e2ee2785d32ef2161f28cd8b

          SHA1

          e31b455b90081313e3b7405db3efe1582fe39daa

          SHA256

          496536d34981fc4155772fe136930ef13cf16116a4df18e6261dd084fce40b21

          SHA512

          8ef798581834a365f8a7649572c8683e9294cb950917b9c1e9b6ae60bf48b2e4d0e3be312843e398868f31835f276df24f4c5c2b6fb07b654322a8d5351815ca

        • \Users\Admin\AppData\Local\Temp\jna-63116079\jna2667559757946257276.dll

          MD5

          e02979ecd43bcc9061eb2b494ab5af50

          SHA1

          3122ac0e751660f646c73b10c4f79685aa65c545

          SHA256

          a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

          SHA512

          1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

        • \Users\Admin\AppData\Local\Temp\jna-63116079\jna956395958424380436.dll

          MD5

          e02979ecd43bcc9061eb2b494ab5af50

          SHA1

          3122ac0e751660f646c73b10c4f79685aa65c545

          SHA256

          a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

          SHA512

          1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

        • memory/428-56-0x0000000000000000-mapping.dmp

        • memory/572-174-0x0000000002250000-0x00000000024C0000-memory.dmp

          Filesize

          2.4MB

        • memory/572-161-0x0000000000000000-mapping.dmp

        • memory/576-208-0x0000000000000000-mapping.dmp

        • memory/588-203-0x0000000000000000-mapping.dmp

        • memory/952-205-0x0000000000000000-mapping.dmp

        • memory/1136-210-0x0000000000000000-mapping.dmp

        • memory/1192-204-0x0000000000000000-mapping.dmp

        • memory/1404-61-0x00000000021D0000-0x0000000002440000-memory.dmp

          Filesize

          2.4MB

        • memory/1404-68-0x0000000000210000-0x0000000000211000-memory.dmp

          Filesize

          4KB

        • memory/1404-62-0x00000000021D0000-0x0000000002440000-memory.dmp

          Filesize

          2.4MB

        • memory/1404-83-0x0000000000210000-0x0000000000211000-memory.dmp

          Filesize

          4KB

        • memory/1404-58-0x0000000000000000-mapping.dmp

        • memory/1404-64-0x0000000000210000-0x0000000000211000-memory.dmp

          Filesize

          4KB

        • memory/1404-63-0x0000000000210000-0x0000000000211000-memory.dmp

          Filesize

          4KB

        • memory/1520-55-0x000007FEFBC01000-0x000007FEFBC03000-memory.dmp

          Filesize

          8KB

        • memory/1588-207-0x0000000000000000-mapping.dmp

        • memory/1616-153-0x00000000022A0000-0x0000000002510000-memory.dmp

          Filesize

          2.4MB

        • memory/1616-147-0x0000000000000000-mapping.dmp

        • memory/1684-206-0x0000000000000000-mapping.dmp

        • memory/1708-209-0x0000000000000000-mapping.dmp

        • memory/1720-160-0x0000000000000000-mapping.dmp

        • memory/1916-171-0x0000000000000000-mapping.dmp