Analysis

  • max time kernel
    156s
  • max time network
    160s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    02-12-2021 16:29

General

  • Target

    PO202104-114.js

  • Size

    202KB

  • MD5

    5c4f47782fb4bfdeb29d59b6c9650286

  • SHA1

    62300fcfeaa7b749cfd7850b94024f362189af11

  • SHA256

    2e0f76b60d0374094c685eca1e37895a7307df72ab16d4bb552911a21b6a36cd

  • SHA512

    b699e44ceaf19ceab872eb7c743a0492eacc2ebb515906b7d5d28767159b14fc18adabd56f1bcb07fd1bcd169a3d1f74cab59ad8ee7643741796639103dce7b5

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 15 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\PO202104-114.js
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1580
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\SyGGrZamCM.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      • Adds Run key to start application
      PID:568
    • C:\Program Files\Java\jre7\bin\javaw.exe
      "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\ntzcuhlwxy.txt"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1848
      • C:\Program Files\Java\jre7\bin\java.exe
        "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\ntzcuhlwxy.txt"
        3⤵
        • Drops startup file
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:1304
        • C:\Windows\system32\cmd.exe
          cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\ntzcuhlwxy.txt"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1488
          • C:\Windows\system32\schtasks.exe
            schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\ntzcuhlwxy.txt"
            5⤵
            • Creates scheduled task(s)
            PID:1480
        • C:\Program Files\Java\jre7\bin\java.exe
          "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\ntzcuhlwxy.txt"
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1668
          • 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:756
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1508
          • 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:1428
            • 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:956
          • 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:320
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
              6⤵
                PID:1168
            • 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:1252
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list
                6⤵
                  PID:1392

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna2869182047769709265.dll

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-103686315-404690609-2047157615-1000\83aa4cc77f591dfc2374580bbd95f6ba_b9d440b4-6805-4743-9d27-9cb5fc4d9db0

        MD5

        c8366ae350e7019aefc9d1e6e6a498c6

        SHA1

        5731d8a3e6568a5f2dfbbc87e3db9637df280b61

        SHA256

        11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

        SHA512

        33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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

        MD5

        78802968268e71d56dc91944257cc6e7

        SHA1

        e31ef27fe37c56c4a1e6eb37753b86b68f0ef387

        SHA256

        b867cf607f7cb4fcd25ecdaf5af06cf04d9af5f75fd407f1b90d4d881cd384df

        SHA512

        32e214e864ded5c299d6f9864347e3d8df1719cc538903715bdc0281de90e738daacba9962d85cf950fc0e079f7b50c4b5adaffde6d12a37790e66d3da7b5afa

      • 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\ntzcuhlwxy.txt

        MD5

        e5c57969a139fa14269758cb8cc8f9a7

        SHA1

        432f65c2b1da28b421eac3956d8cefd72f04ae6a

        SHA256

        b2b661ff89ba10a5a27a06df63a9ffd158b254aff5f38a96ff5c1f6344959501

        SHA512

        526f7f1717488c87457353d78480ec590d5abf5bf6bdc697dc92433c26a949c649b94bd83cfc7891c24fbc5e96414793fb9a192f77a3ded9ad434d8524a215d5

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

        MD5

        e5c57969a139fa14269758cb8cc8f9a7

        SHA1

        432f65c2b1da28b421eac3956d8cefd72f04ae6a

        SHA256

        b2b661ff89ba10a5a27a06df63a9ffd158b254aff5f38a96ff5c1f6344959501

        SHA512

        526f7f1717488c87457353d78480ec590d5abf5bf6bdc697dc92433c26a949c649b94bd83cfc7891c24fbc5e96414793fb9a192f77a3ded9ad434d8524a215d5

      • 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\ntzcuhlwxy.txt

        MD5

        e5c57969a139fa14269758cb8cc8f9a7

        SHA1

        432f65c2b1da28b421eac3956d8cefd72f04ae6a

        SHA256

        b2b661ff89ba10a5a27a06df63a9ffd158b254aff5f38a96ff5c1f6344959501

        SHA512

        526f7f1717488c87457353d78480ec590d5abf5bf6bdc697dc92433c26a949c649b94bd83cfc7891c24fbc5e96414793fb9a192f77a3ded9ad434d8524a215d5

      • \Users\Admin\AppData\Local\Temp\jna-63116079\jna2869182047769709265.dll

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • \Users\Admin\AppData\Local\Temp\jna-63116079\jna7775599755157787283.dll

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • memory/320-149-0x0000000000000000-mapping.dmp

      • memory/568-56-0x0000000000000000-mapping.dmp

      • memory/756-145-0x0000000000000000-mapping.dmp

      • memory/956-148-0x0000000000000000-mapping.dmp

      • memory/1168-150-0x0000000000000000-mapping.dmp

      • memory/1252-151-0x0000000000000000-mapping.dmp

      • memory/1304-80-0x0000000000420000-0x0000000000421000-memory.dmp

        Filesize

        4KB

      • memory/1304-81-0x00000000022B0000-0x0000000002520000-memory.dmp

        Filesize

        2.4MB

      • memory/1304-75-0x0000000000000000-mapping.dmp

      • memory/1304-100-0x0000000000420000-0x0000000000421000-memory.dmp

        Filesize

        4KB

      • memory/1304-91-0x0000000000420000-0x0000000000421000-memory.dmp

        Filesize

        4KB

      • memory/1304-90-0x0000000000420000-0x0000000000421000-memory.dmp

        Filesize

        4KB

      • memory/1392-152-0x0000000000000000-mapping.dmp

      • memory/1428-147-0x0000000000000000-mapping.dmp

      • memory/1480-94-0x0000000000000000-mapping.dmp

      • memory/1488-88-0x0000000000000000-mapping.dmp

      • memory/1508-146-0x0000000000000000-mapping.dmp

      • memory/1580-55-0x000007FEFBF21000-0x000007FEFBF23000-memory.dmp

        Filesize

        8KB

      • memory/1668-111-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/1668-101-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/1668-102-0x0000000002300000-0x0000000002570000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-89-0x0000000000000000-mapping.dmp

      • memory/1668-141-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/1668-131-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/1848-71-0x0000000000310000-0x0000000000311000-memory.dmp

        Filesize

        4KB

      • memory/1848-68-0x0000000000310000-0x0000000000311000-memory.dmp

        Filesize

        4KB

      • memory/1848-69-0x0000000000310000-0x0000000000311000-memory.dmp

        Filesize

        4KB

      • memory/1848-70-0x0000000000310000-0x0000000000311000-memory.dmp

        Filesize

        4KB

      • memory/1848-67-0x0000000000310000-0x0000000000311000-memory.dmp

        Filesize

        4KB

      • memory/1848-76-0x0000000000310000-0x0000000000311000-memory.dmp

        Filesize

        4KB

      • memory/1848-65-0x0000000000310000-0x0000000000311000-memory.dmp

        Filesize

        4KB

      • memory/1848-64-0x0000000000310000-0x0000000000311000-memory.dmp

        Filesize

        4KB

      • memory/1848-63-0x0000000000310000-0x0000000000311000-memory.dmp

        Filesize

        4KB

      • memory/1848-62-0x00000000021B0000-0x0000000002420000-memory.dmp

        Filesize

        2.4MB

      • memory/1848-61-0x00000000021B0000-0x0000000002420000-memory.dmp

        Filesize

        2.4MB

      • memory/1848-58-0x0000000000000000-mapping.dmp