Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-03-2023 13:21

General

  • Target

    UNILEVER PURCHASE ORDER #076863 for acknowledgement.pdf.jar

  • Size

    220KB

  • MD5

    b63df0e1517233d0d5d60e5375b774b2

  • SHA1

    063aedab9fa8b4ef44dd8ca8f08e00496e21546a

  • SHA256

    0431faeccbeca99b242fe5d8464ad5fcc7a24a853df8424d9c49951911e4fdab

  • SHA512

    61bbef99c1ae4ffe32a89a0e8e2d586fc26c5fd9932b3a58f97ef99e7f18f968a67a6818f7160b0f74d140e2ca989f6d39845c906b9de8aab44430938afa17ce

  • SSDEEP

    6144:SZuvXdGeqfj20asN+YfalfNZCDtKJdtoe:YuvtfqfpxNhfQNMIbie

Malware Config

Signatures

  • STRRAT

    STRRAT is a remote access tool than can steal credentials and log keystrokes.

  • 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.

  • 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 24 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\UNILEVER PURCHASE ORDER #076863 for acknowledgement.pdf.jar"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4592
    • 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\UNILEVER PURCHASE ORDER #076863 for acknowledgement.pdf.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:4920
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\UNILEVER PURCHASE ORDER #076863 for acknowledgement.pdf.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4272
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\UNILEVER PURCHASE ORDER #076863 for acknowledgement.pdf.jar"
          4⤵
          • Creates scheduled task(s)
          PID:396
      • 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\UNILEVER PURCHASE ORDER #076863 for acknowledgement.pdf.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2860
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1028
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:224
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1576
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1128
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1972
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:2024
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2812
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:4644

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        50B

        MD5

        e0c6d985f1d510b3b61e5bd0d9624d19

        SHA1

        7a4e22689f23ddb38efd8d295ad09dfc198ee7b8

        SHA256

        7403968a4982c5a7da8b5b194abac3baedd7ba144b57200fa11ae0191ef71e15

        SHA512

        7b5230a84a7aa4ff331cc4f19d87c7ce42062fb13ef39b3842f484246da68c7a5076fe08d6f61d6b1a3291ed2eb7cce16eb544ee085b167a66eb39afce1bd11f

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

        Filesize

        50B

        MD5

        edb84ce451c1a94c39b3a29256a00f58

        SHA1

        848a1e3d4995def25f60f83a2cbb9fcd876f573c

        SHA256

        be19c38ec25b184960b9b87bc6c4d75ae6652c067aad50cc42a5cdd4bc67b243

        SHA512

        7ba2b62b6d3720b49354c3c77088d5928cef50feb77435c8049e4c2af631eead6a6a13eb627a02d3e7bae56b9426026250af9a0b56e1531cb8a0a910f38ef19b

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna5476504567358344856.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\UNILEVER PURCHASE ORDER #076863 for acknowledgement.pdf.jar

        Filesize

        220KB

        MD5

        b63df0e1517233d0d5d60e5375b774b2

        SHA1

        063aedab9fa8b4ef44dd8ca8f08e00496e21546a

        SHA256

        0431faeccbeca99b242fe5d8464ad5fcc7a24a853df8424d9c49951911e4fdab

        SHA512

        61bbef99c1ae4ffe32a89a0e8e2d586fc26c5fd9932b3a58f97ef99e7f18f968a67a6818f7160b0f74d140e2ca989f6d39845c906b9de8aab44430938afa17ce

      • C:\Users\Admin\AppData\Roaming\UNILEVER PURCHASE ORDER #076863 for acknowledgement.pdf.jar

        Filesize

        220KB

        MD5

        b63df0e1517233d0d5d60e5375b774b2

        SHA1

        063aedab9fa8b4ef44dd8ca8f08e00496e21546a

        SHA256

        0431faeccbeca99b242fe5d8464ad5fcc7a24a853df8424d9c49951911e4fdab

        SHA512

        61bbef99c1ae4ffe32a89a0e8e2d586fc26c5fd9932b3a58f97ef99e7f18f968a67a6818f7160b0f74d140e2ca989f6d39845c906b9de8aab44430938afa17ce

      • 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\UNILEVER PURCHASE ORDER #076863 for acknowledgement.pdf.jar

        Filesize

        220KB

        MD5

        b63df0e1517233d0d5d60e5375b774b2

        SHA1

        063aedab9fa8b4ef44dd8ca8f08e00496e21546a

        SHA256

        0431faeccbeca99b242fe5d8464ad5fcc7a24a853df8424d9c49951911e4fdab

        SHA512

        61bbef99c1ae4ffe32a89a0e8e2d586fc26c5fd9932b3a58f97ef99e7f18f968a67a6818f7160b0f74d140e2ca989f6d39845c906b9de8aab44430938afa17ce

      • 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

      • memory/2860-265-0x0000000002FC0000-0x0000000002FC1000-memory.dmp

        Filesize

        4KB

      • memory/2860-289-0x0000000002FC0000-0x0000000002FC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-199-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-190-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-206-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-143-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-200-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-162-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-216-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-208-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-187-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-184-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-182-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-181-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-213-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4592-174-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

        Filesize

        4KB

      • memory/4920-248-0x0000000002480000-0x0000000002481000-memory.dmp

        Filesize

        4KB

      • memory/4920-235-0x0000000002480000-0x0000000002481000-memory.dmp

        Filesize

        4KB