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Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/03/2023, 01:31

General

  • Target

    b2a713c200db40a2516497ba113d3198742535cbb07745e625ce658ace882d69.jar

  • Size

    184KB

  • MD5

    7ce3e372d644ecd63ec9393e12f10f3d

  • SHA1

    9a8fb48b8c803ddb01357dbe4cf2aac845403926

  • SHA256

    b2a713c200db40a2516497ba113d3198742535cbb07745e625ce658ace882d69

  • SHA512

    5e079b575dab0470d813a5ce18b8a6f9dd076335a237c3fa37d12c94e7e0baed03165068d921e16328f86b6cc236e6ca31efb18df735f74e5f7c73ed1b71d5b9

  • SSDEEP

    3072:0L7ikOOC1uBkeQERXx1uQmThP/w6Fr/eU3UcX3adbYkURt20rgy8ZItdUB98ZUuQ:RFOCABkeBSQmThPIoEcX2bYkURkCgy87

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 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.

  • Modifies registry class 1 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 30 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:\ProgramData\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\b2a713c200db40a2516497ba113d3198742535cbb07745e625ce658ace882d69.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Windows\SYSTEM32\wscript.exe
      wscript C:\Users\Admin\pfjpbuvttb.js
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3128
      • C:\Windows\regedit.exe
        "regedit.exe" "C:\Users\Admin\AppData\Local\Temp\ebgeaegdbdecaedfebace.reg"
        3⤵
        • Runs .reg file with regedit
        PID:224
      • 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\bbdcikda.txt"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4812
        • 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\bbdcikda.txt"
          4⤵
          • Drops startup file
          • Loads dropped DLL
          • Adds Run key to start application
          • Suspicious use of WriteProcessMemory
          PID:4168
          • C:\Windows\SYSTEM32\cmd.exe
            cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\bbdcikda.txt"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:3404
            • C:\Windows\system32\schtasks.exe
              schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\bbdcikda.txt"
              6⤵
              • Creates scheduled task(s)
              PID:3320
          • 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\bbdcikda.txt"
            5⤵
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:4824
            • C:\Windows\SYSTEM32\cmd.exe
              cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:3608
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
                7⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:4648
            • C:\Windows\SYSTEM32\cmd.exe
              cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:5028
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
                7⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:2644
            • C:\Windows\SYSTEM32\cmd.exe
              cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:4696
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
                7⤵
                  PID:4328
              • C:\Windows\SYSTEM32\cmd.exe
                cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
                6⤵
                • Suspicious use of WriteProcessMemory
                PID:1220
                • C:\Windows\System32\Wbem\WMIC.exe
                  wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
                  7⤵
                    PID:1688

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        50B

        MD5

        9182eb157c5409a37ed7a2283ff4cb78

        SHA1

        2c56fd1b5189fae9ecf8e891bf1469517966adca

        SHA256

        a482d6c9350186a4e0bfd864f583912ef03c5711b71f37181066a08f0e926ec6

        SHA512

        2ec21adba611caf13dc6620b5d648b75b0bc3150cddd8adcf735542511f99b7856704710eaed298c214fb0c07ec09971a140bf6aeaeea63729e2feefcf69adfc

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

        Filesize

        50B

        MD5

        713d65232da222cdb5098367ff5dc1c9

        SHA1

        6496908eafc54eeebd912d0b372899d748b39fb9

        SHA256

        cdd63c3fa57e57565c134fc6b8fd5acb419e67adbb03c8cffa023fb1a9d7ca64

        SHA512

        a7710bdb3b3cf48a326ad5948c21888a7747f509aa73c59f5ef9c5b6a0aea28c393c63c7158b06d09ae0ec20f9f0384aea74b38a1d18e14a63bb6ed003cf2d5a

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

        Filesize

        50B

        MD5

        88129d6702b9e1527c7e88858bf1fa14

        SHA1

        b22a1f3ba444ba24a205e48c069ef79436d233ad

        SHA256

        4ce09b184adc187c6fe3f261d8ab935cda0ceebd571768c02304940f6b7aeb0f

        SHA512

        6fd96dd56029a7568f2184d1c018dc445418b55f28fc22bbb3fbc6a572bff8e024c0c1fa29098e290b9ae5f93004258fd5c1befe095ee87ca9e7fb4ad5b65e83

      • C:\Users\Admin\AppData\Local\Temp\ebgeaegdbdecaedfebace.reg

        Filesize

        143B

        MD5

        0e5411d7ecba9a435afda71c6c39d8fd

        SHA1

        2d6812052bf7be1b5e213e1d813ae39faa07284c

        SHA256

        cb68d50df5817e51ec5b2f72893dc4c749bf3504519107e0a78dda84d55f09e2

        SHA512

        903ac6e5c8a12607af267b54bcbbedfa5542c5b4f7ea289ab7c6a32a424d5b846ae406d830cb4ad48e2b46f92c504163c0856af8c3e09685a8855f39f616ddb1

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna6077223078139189847.dll

        Filesize

        241KB

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna6077223078139189847.dll

        Filesize

        241KB

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna6077223078139189847.dll

        Filesize

        241KB

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna7284411106614202767.dll

        Filesize

        241KB

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2275444769-3691835758-4097679484-1000\83aa4cc77f591dfc2374580bbd95f6ba_6d187d53-139c-415c-b71c-a4b59992e636

        Filesize

        45B

        MD5

        c8366ae350e7019aefc9d1e6e6a498c6

        SHA1

        5731d8a3e6568a5f2dfbbc87e3db9637df280b61

        SHA256

        11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

        SHA512

        33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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

        Filesize

        92KB

        MD5

        b3a05d912b60e2c471f690a04a502ac0

        SHA1

        2a7f45bd33f6e7c01e9d6e214fa019d2b428b1b3

        SHA256

        cc1829c675aeee4047bc29bf4add2bc0f352703645abf5c07c1e22af01268e4d

        SHA512

        99ec58267ada08a29851fb52aa664f619e4cac13b22b9c7c3d01011666da451a49ad547b295bd65ce2bb4e555e8f1b90470c5c978e3ed33e5e077e38d8bf1880

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

        Filesize

        92KB

        MD5

        b3a05d912b60e2c471f690a04a502ac0

        SHA1

        2a7f45bd33f6e7c01e9d6e214fa019d2b428b1b3

        SHA256

        cc1829c675aeee4047bc29bf4add2bc0f352703645abf5c07c1e22af01268e4d

        SHA512

        99ec58267ada08a29851fb52aa664f619e4cac13b22b9c7c3d01011666da451a49ad547b295bd65ce2bb4e555e8f1b90470c5c978e3ed33e5e077e38d8bf1880

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

        Filesize

        92KB

        MD5

        b3a05d912b60e2c471f690a04a502ac0

        SHA1

        2a7f45bd33f6e7c01e9d6e214fa019d2b428b1b3

        SHA256

        cc1829c675aeee4047bc29bf4add2bc0f352703645abf5c07c1e22af01268e4d

        SHA512

        99ec58267ada08a29851fb52aa664f619e4cac13b22b9c7c3d01011666da451a49ad547b295bd65ce2bb4e555e8f1b90470c5c978e3ed33e5e077e38d8bf1880

      • 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\bbdcikda.txt

        Filesize

        92KB

        MD5

        b3a05d912b60e2c471f690a04a502ac0

        SHA1

        2a7f45bd33f6e7c01e9d6e214fa019d2b428b1b3

        SHA256

        cc1829c675aeee4047bc29bf4add2bc0f352703645abf5c07c1e22af01268e4d

        SHA512

        99ec58267ada08a29851fb52aa664f619e4cac13b22b9c7c3d01011666da451a49ad547b295bd65ce2bb4e555e8f1b90470c5c978e3ed33e5e077e38d8bf1880

      • 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\pfjpbuvttb.js

        Filesize

        845KB

        MD5

        b306aece166677eb58828372a6b9e1d6

        SHA1

        01fee2f330c0479ee5059c2fcf1c7563e8a12df4

        SHA256

        07b29512e4a1d43e3e96fa2c16cd9ddaf9ed8585278ce183caa60e3f2b0e2184

        SHA512

        eff0158d7b0993f34369fc8e04c42e9538cee7410d06aed89e88eb94c71877df82ff6cfe3a9afc43cf182daf70b119e98c3f58ac6f814bdcdaaa58e8a0a46179

      • memory/2208-145-0x0000000000990000-0x0000000000991000-memory.dmp

        Filesize

        4KB

      • memory/4168-242-0x0000000000F70000-0x0000000000F71000-memory.dmp

        Filesize

        4KB

      • memory/4168-266-0x0000000000F70000-0x0000000000F71000-memory.dmp

        Filesize

        4KB

      • memory/4812-197-0x0000000000930000-0x0000000000931000-memory.dmp

        Filesize

        4KB

      • memory/4812-217-0x0000000000930000-0x0000000000931000-memory.dmp

        Filesize

        4KB

      • memory/4812-212-0x0000000000930000-0x0000000000931000-memory.dmp

        Filesize

        4KB

      • memory/4812-205-0x0000000000930000-0x0000000000931000-memory.dmp

        Filesize

        4KB

      • memory/4812-222-0x0000000000930000-0x0000000000931000-memory.dmp

        Filesize

        4KB

      • memory/4812-194-0x0000000000930000-0x0000000000931000-memory.dmp

        Filesize

        4KB

      • memory/4812-170-0x0000000000930000-0x0000000000931000-memory.dmp

        Filesize

        4KB

      • memory/4812-225-0x0000000000930000-0x0000000000931000-memory.dmp

        Filesize

        4KB

      • memory/4824-283-0x0000000002770000-0x0000000002771000-memory.dmp

        Filesize

        4KB

      • memory/4824-284-0x0000000002770000-0x0000000002771000-memory.dmp

        Filesize

        4KB

      • memory/4824-303-0x0000000002770000-0x0000000002771000-memory.dmp

        Filesize

        4KB

      • memory/4824-305-0x0000000002770000-0x0000000002771000-memory.dmp

        Filesize

        4KB