Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    17-06-2021 08:14

General

  • Target

    19fccaa759dbcdae8a35ad3f547442b7.jar

  • Size

    88KB

  • MD5

    19fccaa759dbcdae8a35ad3f547442b7

  • SHA1

    73c6826007360da83765b2e9c86a933cddf5173c

  • SHA256

    b3021f6951937c4a31a049003ab2dc87ceb6da8de1dbc451d8a690701081d40f

  • SHA512

    ebda5ba62d6fe2d94acc0fd101435bded44074dc3930583278df4cc1b9e247eb1ed6a47bebf9a65177bbeb61624141a18259179b4fcfb10b3e48bdae8b5a4fb4

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.

  • 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

Processes

  • C:\ProgramData\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\19fccaa759dbcdae8a35ad3f547442b7.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4012
    • 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\19fccaa759dbcdae8a35ad3f547442b7.jar"
      2⤵
      • Drops startup file
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2424
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\19fccaa759dbcdae8a35ad3f547442b7.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:376
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\19fccaa759dbcdae8a35ad3f547442b7.jar"
          4⤵
          • Creates scheduled task(s)
          PID:2204
      • 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\19fccaa759dbcdae8a35ad3f547442b7.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:3956
        • 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:2416
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3196
        • 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:2296
          • 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:864
        • 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:1216
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:516
          • 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:2156
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:4064

      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\.oracle_jre_usage\90737d32e3aba4b.timestamp
        MD5

        d41d8cd98f00b204e9800998ecf8427e

        SHA1

        da39a3ee5e6b4b0d3255bfef95601890afd80709

        SHA256

        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

        SHA512

        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

      • C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp
        MD5

        d41d8cd98f00b204e9800998ecf8427e

        SHA1

        da39a3ee5e6b4b0d3255bfef95601890afd80709

        SHA256

        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

        SHA512

        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

      • C:\Users\Admin\19fccaa759dbcdae8a35ad3f547442b7.jar
        MD5

        19fccaa759dbcdae8a35ad3f547442b7

        SHA1

        73c6826007360da83765b2e9c86a933cddf5173c

        SHA256

        b3021f6951937c4a31a049003ab2dc87ceb6da8de1dbc451d8a690701081d40f

        SHA512

        ebda5ba62d6fe2d94acc0fd101435bded44074dc3930583278df4cc1b9e247eb1ed6a47bebf9a65177bbeb61624141a18259179b4fcfb10b3e48bdae8b5a4fb4

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna6932440690137793549.dll
        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Roaming\19fccaa759dbcdae8a35ad3f547442b7.jar
        MD5

        19fccaa759dbcdae8a35ad3f547442b7

        SHA1

        73c6826007360da83765b2e9c86a933cddf5173c

        SHA256

        b3021f6951937c4a31a049003ab2dc87ceb6da8de1dbc451d8a690701081d40f

        SHA512

        ebda5ba62d6fe2d94acc0fd101435bded44074dc3930583278df4cc1b9e247eb1ed6a47bebf9a65177bbeb61624141a18259179b4fcfb10b3e48bdae8b5a4fb4

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3686645723-710336880-414668232-1000\83aa4cc77f591dfc2374580bbd95f6ba_89bbad60-16d5-41c2-ad8d-716f4ac5f4c2
        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\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\jna6932440690137793549.dll
        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • \Users\Admin\AppData\Local\Temp\jna-63116079\jna9034879655340739232.dll
        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • memory/376-218-0x0000000000000000-mapping.dmp
      • memory/516-242-0x0000000000000000-mapping.dmp
      • memory/864-240-0x0000000000000000-mapping.dmp
      • memory/1216-241-0x0000000000000000-mapping.dmp
      • memory/2156-243-0x0000000000000000-mapping.dmp
      • memory/2204-220-0x0000000000000000-mapping.dmp
      • memory/2296-239-0x0000000000000000-mapping.dmp
      • memory/2416-237-0x0000000000000000-mapping.dmp
      • memory/2424-227-0x0000000002EC0000-0x0000000002ED0000-memory.dmp
        Filesize

        64KB

      • memory/2424-210-0x0000000002C00000-0x0000000002E70000-memory.dmp
        Filesize

        2.4MB

      • memory/2424-217-0x0000000002EB0000-0x0000000002EC0000-memory.dmp
        Filesize

        64KB

      • memory/2424-216-0x0000000002EA0000-0x0000000002EB0000-memory.dmp
        Filesize

        64KB

      • memory/2424-214-0x0000000002E80000-0x0000000002E90000-memory.dmp
        Filesize

        64KB

      • memory/2424-213-0x0000000002E70000-0x0000000002E80000-memory.dmp
        Filesize

        64KB

      • memory/2424-203-0x0000000000000000-mapping.dmp
      • memory/2424-215-0x0000000002E90000-0x0000000002EA0000-memory.dmp
        Filesize

        64KB

      • memory/3196-238-0x0000000000000000-mapping.dmp
      • memory/3956-233-0x0000000002E30000-0x0000000002E40000-memory.dmp
        Filesize

        64KB

      • memory/3956-219-0x0000000000000000-mapping.dmp
      • memory/3956-248-0x0000000002EA0000-0x0000000002EB0000-memory.dmp
        Filesize

        64KB

      • memory/3956-247-0x0000000002E90000-0x0000000002EA0000-memory.dmp
        Filesize

        64KB

      • memory/3956-245-0x0000000002E70000-0x0000000002E80000-memory.dmp
        Filesize

        64KB

      • memory/3956-246-0x0000000002E80000-0x0000000002E90000-memory.dmp
        Filesize

        64KB

      • memory/3956-236-0x0000000002E60000-0x0000000002E70000-memory.dmp
        Filesize

        64KB

      • memory/3956-235-0x0000000002E50000-0x0000000002E60000-memory.dmp
        Filesize

        64KB

      • memory/3956-234-0x0000000002E40000-0x0000000002E50000-memory.dmp
        Filesize

        64KB

      • memory/3956-231-0x0000000002E10000-0x0000000002E20000-memory.dmp
        Filesize

        64KB

      • memory/3956-232-0x0000000002E20000-0x0000000002E30000-memory.dmp
        Filesize

        64KB

      • memory/3956-228-0x0000000002BA0000-0x0000000002E10000-memory.dmp
        Filesize

        2.4MB

      • memory/4012-200-0x0000000002BB0000-0x0000000002BC0000-memory.dmp
        Filesize

        64KB

      • memory/4012-202-0x0000000002BD0000-0x0000000002BE0000-memory.dmp
        Filesize

        64KB

      • memory/4012-199-0x0000000002BA0000-0x0000000002BB0000-memory.dmp
        Filesize

        64KB

      • memory/4012-128-0x0000000002AB0000-0x0000000002AC0000-memory.dmp
        Filesize

        64KB

      • memory/4012-197-0x0000000002BE0000-0x0000000002BF0000-memory.dmp
        Filesize

        64KB

      • memory/4012-121-0x0000000002AA0000-0x0000000002AB0000-memory.dmp
        Filesize

        64KB

      • memory/4012-118-0x0000000002A80000-0x0000000002A90000-memory.dmp
        Filesize

        64KB

      • memory/4012-120-0x0000000002A90000-0x0000000002AA0000-memory.dmp
        Filesize

        64KB

      • memory/4012-119-0x00000000005C0000-0x00000000005C1000-memory.dmp
        Filesize

        4KB

      • memory/4012-117-0x0000000002A70000-0x0000000002A80000-memory.dmp
        Filesize

        64KB

      • memory/4012-196-0x0000000002B80000-0x0000000002B90000-memory.dmp
        Filesize

        64KB

      • memory/4012-135-0x0000000002B20000-0x0000000002B30000-memory.dmp
        Filesize

        64KB

      • memory/4012-115-0x00000000005C0000-0x00000000005C1000-memory.dmp
        Filesize

        4KB

      • memory/4012-114-0x0000000002800000-0x0000000002A70000-memory.dmp
        Filesize

        2.4MB

      • memory/4012-201-0x0000000002BC0000-0x0000000002BD0000-memory.dmp
        Filesize

        64KB

      • memory/4012-198-0x0000000002B90000-0x0000000002BA0000-memory.dmp
        Filesize

        64KB

      • memory/4012-140-0x0000000002B30000-0x0000000002B40000-memory.dmp
        Filesize

        64KB

      • memory/4012-139-0x00000000005C0000-0x00000000005C1000-memory.dmp
        Filesize

        4KB

      • memory/4012-129-0x0000000002AC0000-0x0000000002AD0000-memory.dmp
        Filesize

        64KB

      • memory/4012-130-0x0000000002AD0000-0x0000000002AE0000-memory.dmp
        Filesize

        64KB

      • memory/4012-194-0x00000000005C0000-0x00000000005C1000-memory.dmp
        Filesize

        4KB

      • memory/4012-186-0x00000000005C0000-0x00000000005C1000-memory.dmp
        Filesize

        4KB

      • memory/4012-183-0x00000000005C0000-0x00000000005C1000-memory.dmp
        Filesize

        4KB

      • memory/4012-178-0x0000000002B70000-0x0000000002B80000-memory.dmp
        Filesize

        64KB

      • memory/4012-177-0x0000000002B60000-0x0000000002B70000-memory.dmp
        Filesize

        64KB

      • memory/4012-146-0x0000000002B50000-0x0000000002B60000-memory.dmp
        Filesize

        64KB

      • memory/4012-143-0x0000000002B40000-0x0000000002B50000-memory.dmp
        Filesize

        64KB

      • memory/4012-136-0x0000000002AF0000-0x0000000002B00000-memory.dmp
        Filesize

        64KB

      • memory/4012-137-0x0000000002B00000-0x0000000002B10000-memory.dmp
        Filesize

        64KB

      • memory/4012-133-0x0000000002AE0000-0x0000000002AF0000-memory.dmp
        Filesize

        64KB

      • memory/4012-131-0x0000000002B10000-0x0000000002B20000-memory.dmp
        Filesize

        64KB

      • memory/4064-244-0x0000000000000000-mapping.dmp