Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    16-04-2021 18:41

General

  • Target

    POM9433T-V_16-04-2021_pdf.zip.jar

  • Size

    181KB

  • MD5

    3fbb39fa80df151835c3cd611800851a

  • SHA1

    469b410c2c2637ecb6f9121bd6433ec5db77f42a

  • SHA256

    63d009b50ac6f3eeaf0890cf605993c2a7031fac53dd7225049fa2934520b937

  • SHA512

    79a90a7a476eca64ff2ebe05d0188580a751577bb739de62ddebf682363b1947e16222ed374ea0afa17db6aec65fb488830b0d121a83a31cb131c4fd4b9af4ec

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 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.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Windows\system32\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\POM9433T-V_16-04-2021_pdf.zip.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1616
    • C:\Windows\system32\wscript.exe
      wscript C:\Users\Admin\njzehmqpqt.js
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1636
      • C:\Program Files\Java\jre7\bin\javaw.exe
        "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\tgimnvrbi.txt"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1040
        • C:\Program Files\Java\jre7\bin\java.exe
          "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\tgimnvrbi.txt"
          4⤵
          • Drops startup file
          • Loads dropped DLL
          • Adds Run key to start application
          • Suspicious use of WriteProcessMemory
          PID:1052
          • C:\Windows\system32\cmd.exe
            cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\tgimnvrbi.txt"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2024
            • C:\Windows\system32\schtasks.exe
              schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\tgimnvrbi.txt"
              6⤵
              • Creates scheduled task(s)
              PID:2008
          • C:\Program Files\Java\jre7\bin\java.exe
            "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\tgimnvrbi.txt"
            5⤵
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:924
            • 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:524
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
                7⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:292
            • 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:1536
              • 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:1792
            • 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:1868
            • C:\Windows\system32\cmd.exe
              cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:300
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list
                7⤵
                  PID:684
    • C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
      1⤵
        PID:1840

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna3040337242664954507.dll

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2513283230-931923277-594887482-1000\83aa4cc77f591dfc2374580bbd95f6ba_17ebba21-ade9-4848-b865-5b9359ee593d

        MD5

        c8366ae350e7019aefc9d1e6e6a498c6

        SHA1

        5731d8a3e6568a5f2dfbbc87e3db9637df280b61

        SHA256

        11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

        SHA512

        33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

      • 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\tgimnvrbi.txt

        MD5

        db2b9cded1645761d0cbc10fb41671eb

        SHA1

        29783e10f86d5d9c975c67212d078dc47c9ace47

        SHA256

        5931e48fe6d5b455aabde56c30c2908a9558848a25e45b7bdb9c17cf865eb5f0

        SHA512

        aa3747b955acc28f03914707bc5e459233296f1b416ac6c7a2ee8e3496b7fe12f7271d9155f60a9b4ba48dc03e3e7eb59ff4378283c8fa8bda6491ad3d260127

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

        MD5

        db2b9cded1645761d0cbc10fb41671eb

        SHA1

        29783e10f86d5d9c975c67212d078dc47c9ace47

        SHA256

        5931e48fe6d5b455aabde56c30c2908a9558848a25e45b7bdb9c17cf865eb5f0

        SHA512

        aa3747b955acc28f03914707bc5e459233296f1b416ac6c7a2ee8e3496b7fe12f7271d9155f60a9b4ba48dc03e3e7eb59ff4378283c8fa8bda6491ad3d260127

      • 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\njzehmqpqt.js

        MD5

        9e99cee150f06b18b74a5e0115b940bd

        SHA1

        e0f001dc23b972628e2b33c8df722feb2ea0277b

        SHA256

        fe6706d9b8834a9a2c8696eaf0dda2000c89f40dfd556058385ba275a8ff7c2d

        SHA512

        bd3c292736887cda27af668c62ab50c3f0d5e0cb76917b8be3fb2081f0b1d722fbda120b14ae9a4a40edfff109b23e68c6499f60e2a2a935166f79e0d95ae8c9

      • C:\Users\Admin\tgimnvrbi.txt

        MD5

        db2b9cded1645761d0cbc10fb41671eb

        SHA1

        29783e10f86d5d9c975c67212d078dc47c9ace47

        SHA256

        5931e48fe6d5b455aabde56c30c2908a9558848a25e45b7bdb9c17cf865eb5f0

        SHA512

        aa3747b955acc28f03914707bc5e459233296f1b416ac6c7a2ee8e3496b7fe12f7271d9155f60a9b4ba48dc03e3e7eb59ff4378283c8fa8bda6491ad3d260127

      • \Users\Admin\AppData\Local\Temp\jna-63116079\jna3040337242664954507.dll

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • \Users\Admin\AppData\Local\Temp\jna-63116079\jna5945998791870640827.dll

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • memory/292-147-0x0000000000000000-mapping.dmp

      • memory/300-152-0x0000000000000000-mapping.dmp

      • memory/524-146-0x0000000000000000-mapping.dmp

      • memory/684-153-0x0000000000000000-mapping.dmp

      • memory/924-116-0x0000000002000000-0x0000000002270000-memory.dmp

        Filesize

        2.4MB

      • memory/924-105-0x0000000000000000-mapping.dmp

      • memory/924-117-0x0000000000320000-0x0000000000321000-memory.dmp

        Filesize

        4KB

      • memory/924-154-0x0000000000320000-0x0000000000321000-memory.dmp

        Filesize

        4KB

      • memory/924-157-0x0000000000320000-0x0000000000321000-memory.dmp

        Filesize

        4KB

      • memory/1040-91-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-77-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-81-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-71-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-74-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-69-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-82-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-73-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-90-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-65-0x0000000000000000-mapping.dmp

      • memory/1040-78-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-83-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-80-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-68-0x0000000002320000-0x0000000002590000-memory.dmp

        Filesize

        2.4MB

      • memory/1040-84-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-86-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1040-85-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/1052-92-0x0000000000000000-mapping.dmp

      • memory/1052-108-0x0000000000420000-0x0000000000421000-memory.dmp

        Filesize

        4KB

      • memory/1052-106-0x0000000000420000-0x0000000000421000-memory.dmp

        Filesize

        4KB

      • memory/1052-97-0x0000000000420000-0x0000000000421000-memory.dmp

        Filesize

        4KB

      • memory/1052-114-0x0000000000420000-0x0000000000421000-memory.dmp

        Filesize

        4KB

      • memory/1052-96-0x00000000021D0000-0x0000000002440000-memory.dmp

        Filesize

        2.4MB

      • memory/1536-148-0x0000000000000000-mapping.dmp

      • memory/1616-61-0x00000000022B0000-0x0000000002520000-memory.dmp

        Filesize

        2.4MB

      • memory/1616-63-0x0000000000130000-0x0000000000131000-memory.dmp

        Filesize

        4KB

      • memory/1616-60-0x000007FEFB881000-0x000007FEFB883000-memory.dmp

        Filesize

        8KB

      • memory/1636-62-0x0000000000000000-mapping.dmp

      • memory/1792-149-0x0000000000000000-mapping.dmp

      • memory/1840-151-0x0000000000000000-mapping.dmp

      • memory/1868-150-0x0000000000000000-mapping.dmp

      • memory/2008-115-0x0000000000000000-mapping.dmp

      • memory/2024-104-0x0000000000000000-mapping.dmp