Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-06-2024 01:33

General

  • Target

    838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar

  • Size

    452KB

  • MD5

    188614b72a3baaf3f018157d12223538

  • SHA1

    f9d7a5a4f743c4d22f6563436761912dacba2a90

  • SHA256

    838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667

  • SHA512

    988445b15fc4b3a9fe28a15c859becaaf3692ec76399e17618e9d1382d73f85549130801210b82e41b76c779bc4ea2bc94c4fafe6a462510d4a0ccc75945e8c8

  • SSDEEP

    12288:CU9r+Wu+x8qH/M10nJQpGrodvkg3/MhGQt3j0dWT:X+Wu+KqfkY6Kodvx3/MhGQtzms

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
  • Modifies file permissions 1 TTPs 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 26 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:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1396
    • C:\Windows\system32\icacls.exe
      C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
      2⤵
      • Modifies file permissions
      PID:808
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1604
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:452
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar"
          4⤵
          • Creates scheduled task(s)
          PID:3000
      • C:\Program Files\Java\jre-1.8\bin\java.exe
        "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:400
        • 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:1204
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4736
        • 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:4556
          • 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:1556
        • 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:4796
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:2220
          • 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:628
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:1660

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

        Filesize

        46B

        MD5

        14b8ccbd361c40f7977530a115b80554

        SHA1

        d865ca8c61fd9d16eec0ce2a09f064e2d1958866

        SHA256

        01e5072ec6944ff372d4e73a728f5cdfa9dfa2d4091d5b23cf29785b08a9b225

        SHA512

        977270d4c6e2dc12bbf4531244d8306b45c0bd58ee6274b82b61b9da8190f15168f9992a114fcea6d52d88dcd9ecf4709779b376915ad5b841f668e255179b12

      • C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

        MD5

        d41d8cd98f00b204e9800998ecf8427e

        SHA1

        da39a3ee5e6b4b0d3255bfef95601890afd80709

        SHA256

        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

        SHA512

        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

      • C:\Users\Admin\838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar

        Filesize

        452KB

        MD5

        188614b72a3baaf3f018157d12223538

        SHA1

        f9d7a5a4f743c4d22f6563436761912dacba2a90

        SHA256

        838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667

        SHA512

        988445b15fc4b3a9fe28a15c859becaaf3692ec76399e17618e9d1382d73f85549130801210b82e41b76c779bc4ea2bc94c4fafe6a462510d4a0ccc75945e8c8

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna4462569096025643826.dll

        Filesize

        241KB

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-540404634-651139247-2967210625-1000\83aa4cc77f591dfc2374580bbd95f6ba_41e50f4a-4a76-42e1-a3df-51306e426307

        Filesize

        45B

        MD5

        c8366ae350e7019aefc9d1e6e6a498c6

        SHA1

        5731d8a3e6568a5f2dfbbc87e3db9637df280b61

        SHA256

        11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

        SHA512

        33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

      • 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/400-375-0x000001ED32120000-0x000001ED32121000-memory.dmp

        Filesize

        4KB

      • memory/400-359-0x000001ED32120000-0x000001ED32121000-memory.dmp

        Filesize

        4KB

      • memory/1396-138-0x00000293C3430000-0x00000293C3440000-memory.dmp

        Filesize

        64KB

      • memory/1396-47-0x00000293C32A0000-0x00000293C32B0000-memory.dmp

        Filesize

        64KB

      • memory/1396-29-0x00000293C3220000-0x00000293C3230000-memory.dmp

        Filesize

        64KB

      • memory/1396-32-0x00000293C3240000-0x00000293C3250000-memory.dmp

        Filesize

        64KB

      • memory/1396-20-0x00000293C31E0000-0x00000293C31F0000-memory.dmp

        Filesize

        64KB

      • memory/1396-42-0x00000293C3270000-0x00000293C3280000-memory.dmp

        Filesize

        64KB

      • memory/1396-44-0x00000293C3290000-0x00000293C32A0000-memory.dmp

        Filesize

        64KB

      • memory/1396-147-0x00000293C3460000-0x00000293C3470000-memory.dmp

        Filesize

        64KB

      • memory/1396-50-0x00000293C32B0000-0x00000293C32C0000-memory.dmp

        Filesize

        64KB

      • memory/1396-49-0x00000293C31D0000-0x00000293C31E0000-memory.dmp

        Filesize

        64KB

      • memory/1396-46-0x00000293C31C0000-0x00000293C31D0000-memory.dmp

        Filesize

        64KB

      • memory/1396-62-0x00000293C32E0000-0x00000293C32F0000-memory.dmp

        Filesize

        64KB

      • memory/1396-61-0x00000293C32D0000-0x00000293C32E0000-memory.dmp

        Filesize

        64KB

      • memory/1396-73-0x00000293C3300000-0x00000293C3310000-memory.dmp

        Filesize

        64KB

      • memory/1396-82-0x00000293C3350000-0x00000293C3360000-memory.dmp

        Filesize

        64KB

      • memory/1396-81-0x00000293C3240000-0x00000293C3250000-memory.dmp

        Filesize

        64KB

      • memory/1396-79-0x00000293C3340000-0x00000293C3350000-memory.dmp

        Filesize

        64KB

      • memory/1396-89-0x00000293C3360000-0x00000293C3370000-memory.dmp

        Filesize

        64KB

      • memory/1396-87-0x00000293C3260000-0x00000293C3270000-memory.dmp

        Filesize

        64KB

      • memory/1396-86-0x00000293C3250000-0x00000293C3260000-memory.dmp

        Filesize

        64KB

      • memory/1396-88-0x00000293C3280000-0x00000293C3290000-memory.dmp

        Filesize

        64KB

      • memory/1396-78-0x00000293C3230000-0x00000293C3240000-memory.dmp

        Filesize

        64KB

      • memory/1396-77-0x00000293C3220000-0x00000293C3230000-memory.dmp

        Filesize

        64KB

      • memory/1396-76-0x00000293C3330000-0x00000293C3340000-memory.dmp

        Filesize

        64KB

      • memory/1396-93-0x00000293C3370000-0x00000293C3380000-memory.dmp

        Filesize

        64KB

      • memory/1396-92-0x00000293C3270000-0x00000293C3280000-memory.dmp

        Filesize

        64KB

      • memory/1396-91-0x00000293C2F20000-0x00000293C2F21000-memory.dmp

        Filesize

        4KB

      • memory/1396-75-0x00000293C3320000-0x00000293C3330000-memory.dmp

        Filesize

        64KB

      • memory/1396-74-0x00000293C3310000-0x00000293C3320000-memory.dmp

        Filesize

        64KB

      • memory/1396-98-0x00000293C3380000-0x00000293C3390000-memory.dmp

        Filesize

        64KB

      • memory/1396-97-0x00000293C3290000-0x00000293C32A0000-memory.dmp

        Filesize

        64KB

      • memory/1396-72-0x00000293C32F0000-0x00000293C3300000-memory.dmp

        Filesize

        64KB

      • memory/1396-104-0x00000293C33A0000-0x00000293C33B0000-memory.dmp

        Filesize

        64KB

      • memory/1396-105-0x00000293C33B0000-0x00000293C33C0000-memory.dmp

        Filesize

        64KB

      • memory/1396-110-0x00000293C33D0000-0x00000293C33E0000-memory.dmp

        Filesize

        64KB

      • memory/1396-120-0x00000293C3400000-0x00000293C3410000-memory.dmp

        Filesize

        64KB

      • memory/1396-119-0x00000293C32E0000-0x00000293C32F0000-memory.dmp

        Filesize

        64KB

      • memory/1396-118-0x00000293C32D0000-0x00000293C32E0000-memory.dmp

        Filesize

        64KB

      • memory/1396-117-0x00000293C32F0000-0x00000293C3300000-memory.dmp

        Filesize

        64KB

      • memory/1396-116-0x00000293C33F0000-0x00000293C3400000-memory.dmp

        Filesize

        64KB

      • memory/1396-115-0x00000293C33E0000-0x00000293C33F0000-memory.dmp

        Filesize

        64KB

      • memory/1396-129-0x00000293C3310000-0x00000293C3320000-memory.dmp

        Filesize

        64KB

      • memory/1396-135-0x00000293C3420000-0x00000293C3430000-memory.dmp

        Filesize

        64KB

      • memory/1396-141-0x00000293C3440000-0x00000293C3450000-memory.dmp

        Filesize

        64KB

      • memory/1396-140-0x00000293C3360000-0x00000293C3370000-memory.dmp

        Filesize

        64KB

      • memory/1396-25-0x00000293C3200000-0x00000293C3210000-memory.dmp

        Filesize

        64KB

      • memory/1396-137-0x00000293C3350000-0x00000293C3360000-memory.dmp

        Filesize

        64KB

      • memory/1396-144-0x00000293C3450000-0x00000293C3460000-memory.dmp

        Filesize

        64KB

      • memory/1396-132-0x00000293C3410000-0x00000293C3420000-memory.dmp

        Filesize

        64KB

      • memory/1396-134-0x00000293C3340000-0x00000293C3350000-memory.dmp

        Filesize

        64KB

      • memory/1396-161-0x00000293C33C0000-0x00000293C33D0000-memory.dmp

        Filesize

        64KB

      • memory/1396-30-0x00000293C3230000-0x00000293C3240000-memory.dmp

        Filesize

        64KB

      • memory/1396-143-0x00000293C3370000-0x00000293C3380000-memory.dmp

        Filesize

        64KB

      • memory/1396-152-0x00000293C3470000-0x00000293C3480000-memory.dmp

        Filesize

        64KB

      • memory/1396-151-0x00000293C33B0000-0x00000293C33C0000-memory.dmp

        Filesize

        64KB

      • memory/1396-150-0x00000293C33A0000-0x00000293C33B0000-memory.dmp

        Filesize

        64KB

      • memory/1396-149-0x00000293C3390000-0x00000293C33A0000-memory.dmp

        Filesize

        64KB

      • memory/1396-131-0x00000293C3330000-0x00000293C3340000-memory.dmp

        Filesize

        64KB

      • memory/1396-130-0x00000293C3320000-0x00000293C3330000-memory.dmp

        Filesize

        64KB

      • memory/1396-128-0x00000293C3300000-0x00000293C3310000-memory.dmp

        Filesize

        64KB

      • memory/1396-127-0x00000293C2F20000-0x00000293C2F21000-memory.dmp

        Filesize

        4KB

      • memory/1396-114-0x00000293C32C0000-0x00000293C32D0000-memory.dmp

        Filesize

        64KB

      • memory/1396-109-0x00000293C33C0000-0x00000293C33D0000-memory.dmp

        Filesize

        64KB

      • memory/1396-108-0x00000293C32B0000-0x00000293C32C0000-memory.dmp

        Filesize

        64KB

      • memory/1396-103-0x00000293C3390000-0x00000293C33A0000-memory.dmp

        Filesize

        64KB

      • memory/1396-102-0x00000293C32A0000-0x00000293C32B0000-memory.dmp

        Filesize

        64KB

      • memory/1396-146-0x00000293C3380000-0x00000293C3390000-memory.dmp

        Filesize

        64KB

      • memory/1396-164-0x00000293C3490000-0x00000293C34A0000-memory.dmp

        Filesize

        64KB

      • memory/1396-163-0x00000293C3480000-0x00000293C3490000-memory.dmp

        Filesize

        64KB

      • memory/1396-162-0x00000293C33D0000-0x00000293C33E0000-memory.dmp

        Filesize

        64KB

      • memory/1396-156-0x00000293C2F20000-0x00000293C2F21000-memory.dmp

        Filesize

        4KB

      • memory/1396-64-0x00000293C2F20000-0x00000293C2F21000-memory.dmp

        Filesize

        4KB

      • memory/1396-71-0x00000293C3210000-0x00000293C3220000-memory.dmp

        Filesize

        64KB

      • memory/1396-168-0x00000293C34A0000-0x00000293C34B0000-memory.dmp

        Filesize

        64KB

      • memory/1396-167-0x00000293C33F0000-0x00000293C3400000-memory.dmp

        Filesize

        64KB

      • memory/1396-166-0x00000293C33E0000-0x00000293C33F0000-memory.dmp

        Filesize

        64KB

      • memory/1396-169-0x00000293C3400000-0x00000293C3410000-memory.dmp

        Filesize

        64KB

      • memory/1396-170-0x00000293C34B0000-0x00000293C34C0000-memory.dmp

        Filesize

        64KB

      • memory/1396-70-0x00000293C3200000-0x00000293C3210000-memory.dmp

        Filesize

        64KB

      • memory/1396-60-0x00000293C31F0000-0x00000293C3200000-memory.dmp

        Filesize

        64KB

      • memory/1396-58-0x00000293C32C0000-0x00000293C32D0000-memory.dmp

        Filesize

        64KB

      • memory/1396-57-0x00000293C31E0000-0x00000293C31F0000-memory.dmp

        Filesize

        64KB

      • memory/1396-41-0x00000293C31B0000-0x00000293C31C0000-memory.dmp

        Filesize

        64KB

      • memory/1396-40-0x00000293C3280000-0x00000293C3290000-memory.dmp

        Filesize

        64KB

      • memory/1396-39-0x00000293C3260000-0x00000293C3270000-memory.dmp

        Filesize

        64KB

      • memory/1396-38-0x00000293C3250000-0x00000293C3260000-memory.dmp

        Filesize

        64KB

      • memory/1396-37-0x00000293C2F40000-0x00000293C31B0000-memory.dmp

        Filesize

        2.4MB

      • memory/1396-19-0x00000293C31D0000-0x00000293C31E0000-memory.dmp

        Filesize

        64KB

      • memory/1396-177-0x00000293C2F20000-0x00000293C2F21000-memory.dmp

        Filesize

        4KB

      • memory/1396-179-0x00000293C3410000-0x00000293C3420000-memory.dmp

        Filesize

        64KB

      • memory/1396-183-0x00000293C34C0000-0x00000293C34D0000-memory.dmp

        Filesize

        64KB

      • memory/1396-182-0x00000293C3420000-0x00000293C3430000-memory.dmp

        Filesize

        64KB

      • memory/1396-188-0x00000293C31D0000-0x00000293C31E0000-memory.dmp

        Filesize

        64KB

      • memory/1396-26-0x00000293C3210000-0x00000293C3220000-memory.dmp

        Filesize

        64KB

      • memory/1396-187-0x00000293C31B0000-0x00000293C31C0000-memory.dmp

        Filesize

        64KB

      • memory/1396-186-0x00000293C31C0000-0x00000293C31D0000-memory.dmp

        Filesize

        64KB

      • memory/1396-185-0x00000293C31E0000-0x00000293C31F0000-memory.dmp

        Filesize

        64KB

      • memory/1396-2-0x00000293C2F40000-0x00000293C31B0000-memory.dmp

        Filesize

        2.4MB

      • memory/1396-12-0x00000293C2F20000-0x00000293C2F21000-memory.dmp

        Filesize

        4KB

      • memory/1396-23-0x00000293C31F0000-0x00000293C3200000-memory.dmp

        Filesize

        64KB

      • memory/1396-16-0x00000293C31C0000-0x00000293C31D0000-memory.dmp

        Filesize

        64KB

      • memory/1396-15-0x00000293C31B0000-0x00000293C31C0000-memory.dmp

        Filesize

        64KB

      • memory/1604-298-0x000001F48C560000-0x000001F48C561000-memory.dmp

        Filesize

        4KB

      • memory/1604-296-0x000001F48C560000-0x000001F48C561000-memory.dmp

        Filesize

        4KB