Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-03-2023 07:01

General

  • Target

    42799223.js

  • Size

    337KB

  • MD5

    98852e60ba7c53901110f0b5252ca2e1

  • SHA1

    75dd09aef979344a7a3980ef7a68dfc6af26d9f4

  • SHA256

    d89d414f788968b51167e9020ea772fd1e869a5633604042185cc37c2056a20c

  • SHA512

    e4b5b2c33cfffb4edc400ceb9ac0f079ccf12607fd161fa35f016192132f11081910e03da40f6759210f7f92b9b5967a21977dc20e5dd0722a03464a735ad274

  • SSDEEP

    6144:GQlhss9OrDm+2FeaIPNIGNd3o6vjjJe+FW2wG1v2WOpsTA91:NzhwrDmzFgIGNdrjJ7hwGxA1

Malware Config

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 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.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 26 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\42799223.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2368
    • 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\wyodlsomf.txt"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1988
      • 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\wyodlsomf.txt"
        3⤵
        • Drops startup file
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:1692
        • C:\Windows\SYSTEM32\cmd.exe
          cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\wyodlsomf.txt"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1800
          • C:\Windows\system32\schtasks.exe
            schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\wyodlsomf.txt"
            5⤵
            • Creates scheduled task(s)
            PID:2888
        • 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\wyodlsomf.txt"
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1948
          • 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:4312
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1144
          • 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:4788
            • 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:664
          • 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:5104
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
              6⤵
                PID:2644
            • 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:1876
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
                6⤵
                  PID:1320

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        50B

        MD5

        b6fdd18f6c56a54da0f69ae614fe5250

        SHA1

        a7283c2fbfacab5a60b80d9bcf7897b0a6938858

        SHA256

        d239fc86d23bf51aa70853c2fdef8f350f46d6278095aa13c021beeea31a7c7a

        SHA512

        c0f839b1cfb1f1b71ba5c7f9a5371aac25e1c61b003757493d968c11bd5860a9f0bd62b2780868d4645ffb5eddcf2ecbf91b5a68fa9276466c2f7a4dd5b94c90

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

        Filesize

        50B

        MD5

        a788350249d91d5446cd983f927b6656

        SHA1

        1b137f85937e18b35c8a18e4a946f629593b2043

        SHA256

        675be0df0f8876db5b1dd45f69813c79b8dd575355cca7013560164d9d0175cb

        SHA512

        aa8462c7891e8d38173781aaa93d09e6ed22cddb6a6fe10687d7c3c047cfbc2f9bbe4b3a6946e8347ff47b79e932553b292c4438f79d38f9df8bb195e3f71876

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna4032976641585413082.dll

        Filesize

        241KB

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1675742406-747946869-1029867430-1000\83aa4cc77f591dfc2374580bbd95f6ba_8d6935fa-0795-4a6f-bfd9-e755f1917fa0

        Filesize

        45B

        MD5

        c8366ae350e7019aefc9d1e6e6a498c6

        SHA1

        5731d8a3e6568a5f2dfbbc87e3db9637df280b61

        SHA256

        11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

        SHA512

        33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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

        Filesize

        164KB

        MD5

        ee0c894459d03d1cac9a1ffda9a7f424

        SHA1

        8cf7735a72d49cfcdb61f7dd2aee32ee05bdac59

        SHA256

        76ad6c02cae9447420bd4e3b74b580637fadf3a891be3e79750a68dd5b3b493c

        SHA512

        fee7e034dfe382130708bc4f422c1c710fe1a296519319741ab693178a1ea764c86dbf4c99f7bcd30598e633e81fb965412f81b4b4b093e80c96421e9f9286a5

      • 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\wyodlsomf.txt

        Filesize

        164KB

        MD5

        ee0c894459d03d1cac9a1ffda9a7f424

        SHA1

        8cf7735a72d49cfcdb61f7dd2aee32ee05bdac59

        SHA256

        76ad6c02cae9447420bd4e3b74b580637fadf3a891be3e79750a68dd5b3b493c

        SHA512

        fee7e034dfe382130708bc4f422c1c710fe1a296519319741ab693178a1ea764c86dbf4c99f7bcd30598e633e81fb965412f81b4b4b093e80c96421e9f9286a5

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

        Filesize

        164KB

        MD5

        ee0c894459d03d1cac9a1ffda9a7f424

        SHA1

        8cf7735a72d49cfcdb61f7dd2aee32ee05bdac59

        SHA256

        76ad6c02cae9447420bd4e3b74b580637fadf3a891be3e79750a68dd5b3b493c

        SHA512

        fee7e034dfe382130708bc4f422c1c710fe1a296519319741ab693178a1ea764c86dbf4c99f7bcd30598e633e81fb965412f81b4b4b093e80c96421e9f9286a5

      • 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\wyodlsomf.txt

        Filesize

        164KB

        MD5

        ee0c894459d03d1cac9a1ffda9a7f424

        SHA1

        8cf7735a72d49cfcdb61f7dd2aee32ee05bdac59

        SHA256

        76ad6c02cae9447420bd4e3b74b580637fadf3a891be3e79750a68dd5b3b493c

        SHA512

        fee7e034dfe382130708bc4f422c1c710fe1a296519319741ab693178a1ea764c86dbf4c99f7bcd30598e633e81fb965412f81b4b4b093e80c96421e9f9286a5

      • memory/1692-237-0x0000000000C50000-0x0000000000C51000-memory.dmp

        Filesize

        4KB

      • memory/1948-266-0x0000000002640000-0x0000000002641000-memory.dmp

        Filesize

        4KB

      • memory/1948-290-0x0000000002640000-0x0000000002641000-memory.dmp

        Filesize

        4KB

      • memory/1948-284-0x0000000002640000-0x0000000002641000-memory.dmp

        Filesize

        4KB

      • memory/1948-267-0x0000000002640000-0x0000000002641000-memory.dmp

        Filesize

        4KB

      • memory/1988-185-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB

      • memory/1988-182-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB

      • memory/1988-207-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB

      • memory/1988-205-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB

      • memory/1988-196-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB

      • memory/1988-184-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB

      • memory/1988-199-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB

      • memory/1988-190-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB

      • memory/1988-173-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB

      • memory/1988-206-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB

      • memory/1988-165-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB

      • memory/1988-145-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB

      • memory/1988-211-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB

      • memory/1988-220-0x00000000028B0000-0x00000000028B1000-memory.dmp

        Filesize

        4KB