Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-02-2023 11:21

General

  • Target

    78882c274365a8fb9b0ce2402c31b4a173ea04e7645288c3a0210908533403cf.js

  • Size

    4.9MB

  • MD5

    4a38e31d3ef1231427efec1bf45cd882

  • SHA1

    e8bea5f848779e84bbb9cc0f5585a62e086fadc7

  • SHA256

    78882c274365a8fb9b0ce2402c31b4a173ea04e7645288c3a0210908533403cf

  • SHA512

    8449570e03218f1efaa2d31783d73fd1c74b4011e8a3d0a281dd153eddc744d1e23d19d7e875aef2df2906e5197ca4271c7b1e28be0fe036368c212b72e4c35a

  • SSDEEP

    3072:OPcyNWe8yIe784AfkDT6sfndkHoa7Qr1Lqy/3OMEvDgzo5O2IzE1aYHgDhKXU/Wd:6TN1U

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 10 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 3 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.

  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 28 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:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\78882c274365a8fb9b0ce2402c31b4a173ea04e7645288c3a0210908533403cf.js
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4888
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\dwtvsZxPLc.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:2324
    • C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
      "C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\mydgtoko.txt"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1136
      • 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\mydgtoko.txt"
        3⤵
        • Drops startup file
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:4648
        • C:\Windows\SYSTEM32\cmd.exe
          cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\mydgtoko.txt"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4112
          • C:\Windows\system32\schtasks.exe
            schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\mydgtoko.txt"
            5⤵
            • Creates scheduled task(s)
            PID:4424
        • 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\mydgtoko.txt"
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1168
          • 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:3980
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:2968
          • 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:5092
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1836
          • 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:3632
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
              6⤵
                PID:4864
            • C:\Windows\SYSTEM32\cmd.exe
              cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:4000
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
                6⤵
                  PID:2856

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        50B

        MD5

        073a99eaec2ed9730387b87bf6b02d7d

        SHA1

        2ee58cfb3d96362a77004ca4581a32cfc57ab5d5

        SHA256

        850db019c2385e4fb9a9a1ae8442ccf4e8ec23dc6ec1fadbf718cde6bc9b8bf4

        SHA512

        0af709b1f02e7e8048cbbb6cdccd8f442cc3a81966350c5c5a6c2e14b1804f8d681ac87a301d89541c7f47bf26d9ee557051a0a5b09cfaff195ba3a1c77bca5f

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

        Filesize

        50B

        MD5

        c13d8d03990cf432f0402d4651b479d0

        SHA1

        d47924fe46b5ba284d9a62d7e72617528b24255b

        SHA256

        459c9a824685bf553193a0d3df129b42cc5383b4875924a2530a18496d718783

        SHA512

        6da2f48da37b07fae12a02c8743542eb670837b0a8b4293d320ed74fae9211e7f018856e4798b01dcecbaf0736ffcd7bce4b5c6eae1dac35b727caf96bfcf0db

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna6004540509655657227.dll

        Filesize

        241KB

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2805025096-2326403612-4231045514-1000\83aa4cc77f591dfc2374580bbd95f6ba_7669410e-8e67-41c6-8402-7b5abeec199f

        Filesize

        45B

        MD5

        c8366ae350e7019aefc9d1e6e6a498c6

        SHA1

        5731d8a3e6568a5f2dfbbc87e3db9637df280b61

        SHA256

        11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

        SHA512

        33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mydgtoko.txt

        Filesize

        164KB

        MD5

        cca2c9b0f4b9fb5b5b4ddba111b4f55e

        SHA1

        77612c8c8f1de38c5d4ade411b7236b7c59d1d78

        SHA256

        bffce92e0e7c60c715cf1409fdf4e50747f4ccd72d9b6555e69ca8b18d709724

        SHA512

        495aefbea7a74238afc944897b09b7e16ed2222e122d2e8b2f2ceae4098c02ec04ee51cf3d38e98cc33ca9e98522a8e493066c2683387d24cef06be113b1ef99

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

        Filesize

        346KB

        MD5

        64d7b8fa3dfd844fbe9b2dcc28be9f20

        SHA1

        47418bcbd930b01d8ee98ee8258b41b4d99172ce

        SHA256

        29126b113b9148541cc7d5b8b01629c890d1a2c68af12bf57de210ba9ae9465f

        SHA512

        349f1c6cb03bd87270012bed5918e42c3c06d1b89841d47d9c9c6d3e5fc556ef41e427abf79edda3becfa72d18cbab0960bb0e98b0316d6e72a604554c1313f9

      • 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\mydgtoko.txt

        Filesize

        164KB

        MD5

        cca2c9b0f4b9fb5b5b4ddba111b4f55e

        SHA1

        77612c8c8f1de38c5d4ade411b7236b7c59d1d78

        SHA256

        bffce92e0e7c60c715cf1409fdf4e50747f4ccd72d9b6555e69ca8b18d709724

        SHA512

        495aefbea7a74238afc944897b09b7e16ed2222e122d2e8b2f2ceae4098c02ec04ee51cf3d38e98cc33ca9e98522a8e493066c2683387d24cef06be113b1ef99

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

        Filesize

        164KB

        MD5

        cca2c9b0f4b9fb5b5b4ddba111b4f55e

        SHA1

        77612c8c8f1de38c5d4ade411b7236b7c59d1d78

        SHA256

        bffce92e0e7c60c715cf1409fdf4e50747f4ccd72d9b6555e69ca8b18d709724

        SHA512

        495aefbea7a74238afc944897b09b7e16ed2222e122d2e8b2f2ceae4098c02ec04ee51cf3d38e98cc33ca9e98522a8e493066c2683387d24cef06be113b1ef99

      • 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\mydgtoko.txt

        Filesize

        164KB

        MD5

        cca2c9b0f4b9fb5b5b4ddba111b4f55e

        SHA1

        77612c8c8f1de38c5d4ade411b7236b7c59d1d78

        SHA256

        bffce92e0e7c60c715cf1409fdf4e50747f4ccd72d9b6555e69ca8b18d709724

        SHA512

        495aefbea7a74238afc944897b09b7e16ed2222e122d2e8b2f2ceae4098c02ec04ee51cf3d38e98cc33ca9e98522a8e493066c2683387d24cef06be113b1ef99

      • memory/1136-192-0x0000000002F80000-0x0000000002F81000-memory.dmp

        Filesize

        4KB

      • memory/1136-215-0x0000000002F80000-0x0000000002F81000-memory.dmp

        Filesize

        4KB

      • memory/1136-214-0x0000000002F80000-0x0000000002F81000-memory.dmp

        Filesize

        4KB

      • memory/1136-150-0x0000000002F80000-0x0000000002F81000-memory.dmp

        Filesize

        4KB

      • memory/1136-197-0x0000000002F80000-0x0000000002F81000-memory.dmp

        Filesize

        4KB

      • memory/1136-170-0x0000000002F80000-0x0000000002F81000-memory.dmp

        Filesize

        4KB

      • memory/1136-190-0x0000000002F80000-0x0000000002F81000-memory.dmp

        Filesize

        4KB

      • memory/1136-184-0x0000000002F80000-0x0000000002F81000-memory.dmp

        Filesize

        4KB

      • memory/1136-182-0x0000000002F80000-0x0000000002F81000-memory.dmp

        Filesize

        4KB

      • memory/1136-181-0x0000000002F80000-0x0000000002F81000-memory.dmp

        Filesize

        4KB

      • memory/1136-179-0x0000000002F80000-0x0000000002F81000-memory.dmp

        Filesize

        4KB

      • memory/1136-225-0x0000000002F80000-0x0000000002F81000-memory.dmp

        Filesize

        4KB

      • memory/1168-270-0x0000000002440000-0x0000000002441000-memory.dmp

        Filesize

        4KB

      • memory/1168-286-0x0000000002440000-0x0000000002441000-memory.dmp

        Filesize

        4KB

      • memory/1168-296-0x0000000002440000-0x0000000002441000-memory.dmp

        Filesize

        4KB

      • memory/4648-242-0x0000000001320000-0x0000000001321000-memory.dmp

        Filesize

        4KB