Analysis

  • max time kernel
    126s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    19-05-2021 15:23

General

  • Target

    Remittance E-MAIL Layout _ 12_.jar

  • Size

    105KB

  • MD5

    e2d8f5bdf7e52f80c4d9994a0614cfad

  • SHA1

    7586653e324696781f4b8e19f5a008b9e7b74150

  • SHA256

    94128ae9a78c975a33e9a3e84022f582332a55ba2ae9ccec22c2b28a85730a97

  • SHA512

    510671a333be370e5bb2026048b00fa8782300046f89af33e11537a4bb7b9a17eb07186837cad570e8969cda27acc1741114ef5c9d7c5b8e1c3d367f9447b192

Malware Config

Signatures

  • STRRAT

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

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs

Processes

  • C:\Windows\system32\java.exe
    java -jar "C:\Users\Admin\AppData\Local\Temp\Remittance E-MAIL Layout _ 12_.jar"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:296
    • C:\Program Files\Java\jre7\bin\java.exe
      "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\Remittance E-MAIL Layout _ 12_.jar"
      2⤵
      • Drops startup file
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1828
      • C:\Windows\system32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Remittance E-MAIL Layout _ 12_.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1364
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Remittance E-MAIL Layout _ 12_.jar"
          4⤵
          • Creates scheduled task(s)
          PID:1728
      • C:\Program Files\Java\jre7\bin\java.exe
        "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\Remittance E-MAIL Layout _ 12_.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1440
        • 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:1652
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:872
        • 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:1456
          • 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:1808
        • 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:1304
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:1660
          • C:\Windows\system32\cmd.exe
            cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1388
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list
              5⤵
                PID:1968
            • C:\Windows\system32\cmd.exe
              cmd.exe /c "C:\Users\Admin\AppData\Roaming\Cure.exe"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:1704
              • C:\Users\Admin\AppData\Roaming\Cure.exe
                C:\Users\Admin\AppData\Roaming\Cure.exe
                5⤵
                • Executes dropped EXE
                • Deletes itself
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of WriteProcessMemory
                PID:1348
                • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
                  dw20.exe -x -s 500
                  6⤵
                    PID:1568

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Execution

        Scheduled Task

        1
        T1053

        Persistence

        Registry Run Keys / Startup Folder

        1
        T1060

        Scheduled Task

        1
        T1053

        Privilege Escalation

        Scheduled Task

        1
        T1053

        Defense Evasion

        Modify Registry

        1
        T1112

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna3516959858522497989.dll
          MD5

          e02979ecd43bcc9061eb2b494ab5af50

          SHA1

          3122ac0e751660f646c73b10c4f79685aa65c545

          SHA256

          a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

          SHA512

          1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

        • C:\Users\Admin\AppData\Roaming\Cure.exe
          MD5

          52f0ba9816dc478649b8a33ab43ece85

          SHA1

          45b14f983741d1d6d246756c947eea1dc4168def

          SHA256

          cc382625da4dc7d8bb5d2994be2221692d005c7d02c8cb3712e1447b416e35c6

          SHA512

          dee78a90e0dfdfd813d8d591b0044df8dfc778906a7503e4c548b9bdab90010ab38084e06912ed595ffade080a682fd475630f38626ef4f8285d19bf0776a54a

        • C:\Users\Admin\AppData\Roaming\Cure.exe
          MD5

          52f0ba9816dc478649b8a33ab43ece85

          SHA1

          45b14f983741d1d6d246756c947eea1dc4168def

          SHA256

          cc382625da4dc7d8bb5d2994be2221692d005c7d02c8cb3712e1447b416e35c6

          SHA512

          dee78a90e0dfdfd813d8d591b0044df8dfc778906a7503e4c548b9bdab90010ab38084e06912ed595ffade080a682fd475630f38626ef4f8285d19bf0776a54a

        • 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\Remittance E-MAIL Layout _ 12_.jar
          MD5

          e2d8f5bdf7e52f80c4d9994a0614cfad

          SHA1

          7586653e324696781f4b8e19f5a008b9e7b74150

          SHA256

          94128ae9a78c975a33e9a3e84022f582332a55ba2ae9ccec22c2b28a85730a97

          SHA512

          510671a333be370e5bb2026048b00fa8782300046f89af33e11537a4bb7b9a17eb07186837cad570e8969cda27acc1741114ef5c9d7c5b8e1c3d367f9447b192

        • 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\Remittance E-MAIL Layout _ 12_.jar
          MD5

          e2d8f5bdf7e52f80c4d9994a0614cfad

          SHA1

          7586653e324696781f4b8e19f5a008b9e7b74150

          SHA256

          94128ae9a78c975a33e9a3e84022f582332a55ba2ae9ccec22c2b28a85730a97

          SHA512

          510671a333be370e5bb2026048b00fa8782300046f89af33e11537a4bb7b9a17eb07186837cad570e8969cda27acc1741114ef5c9d7c5b8e1c3d367f9447b192

        • 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

        • \Users\Admin\AppData\Local\Temp\jna-63116079\jna1323477285380975819.dll
          MD5

          e02979ecd43bcc9061eb2b494ab5af50

          SHA1

          3122ac0e751660f646c73b10c4f79685aa65c545

          SHA256

          a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

          SHA512

          1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

        • \Users\Admin\AppData\Local\Temp\jna-63116079\jna3516959858522497989.dll
          MD5

          e02979ecd43bcc9061eb2b494ab5af50

          SHA1

          3122ac0e751660f646c73b10c4f79685aa65c545

          SHA256

          a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

          SHA512

          1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

        • memory/296-91-0x0000000000220000-0x0000000000221000-memory.dmp
          Filesize

          4KB

        • memory/296-61-0x0000000000220000-0x0000000000221000-memory.dmp
          Filesize

          4KB

        • memory/296-107-0x0000000000220000-0x0000000000221000-memory.dmp
          Filesize

          4KB

        • memory/296-101-0x0000000000220000-0x0000000000221000-memory.dmp
          Filesize

          4KB

        • memory/296-59-0x000007FEFB8F1000-0x000007FEFB8F3000-memory.dmp
          Filesize

          8KB

        • memory/296-60-0x0000000002420000-0x0000000002690000-memory.dmp
          Filesize

          2.4MB

        • memory/296-63-0x0000000000220000-0x0000000000221000-memory.dmp
          Filesize

          4KB

        • memory/296-87-0x0000000000220000-0x0000000000221000-memory.dmp
          Filesize

          4KB

        • memory/296-71-0x0000000000220000-0x0000000000221000-memory.dmp
          Filesize

          4KB

        • memory/296-81-0x0000000000220000-0x0000000000221000-memory.dmp
          Filesize

          4KB

        • memory/296-77-0x0000000000220000-0x0000000000221000-memory.dmp
          Filesize

          4KB

        • memory/872-145-0x0000000000000000-mapping.dmp
        • memory/1304-148-0x0000000000000000-mapping.dmp
        • memory/1348-156-0x0000000002150000-0x0000000002152000-memory.dmp
          Filesize

          8KB

        • memory/1348-153-0x0000000000000000-mapping.dmp
        • memory/1364-133-0x0000000000000000-mapping.dmp
        • memory/1388-150-0x0000000000000000-mapping.dmp
        • memory/1440-137-0x0000000002130000-0x00000000023A0000-memory.dmp
          Filesize

          2.4MB

        • memory/1440-134-0x0000000000000000-mapping.dmp
        • memory/1456-146-0x0000000000000000-mapping.dmp
        • memory/1568-157-0x0000000000000000-mapping.dmp
        • memory/1568-158-0x0000000000370000-0x0000000000371000-memory.dmp
          Filesize

          4KB

        • memory/1652-144-0x0000000000000000-mapping.dmp
        • memory/1660-149-0x0000000000000000-mapping.dmp
        • memory/1704-152-0x0000000000000000-mapping.dmp
        • memory/1728-135-0x0000000000000000-mapping.dmp
        • memory/1808-147-0x0000000000000000-mapping.dmp
        • memory/1828-130-0x00000000021C0000-0x0000000002430000-memory.dmp
          Filesize

          2.4MB

        • memory/1828-124-0x0000000000000000-mapping.dmp
        • memory/1968-151-0x0000000000000000-mapping.dmp