Analysis

  • max time kernel
    150s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25/09/2024, 11:43

General

  • Target

    f5efbee9d2ec391369463f54d305aceb_JaffaCakes118.exe

  • Size

    297KB

  • MD5

    f5efbee9d2ec391369463f54d305aceb

  • SHA1

    7e34efc45141a017cbf4c8e1a2080bae289ad67f

  • SHA256

    e1045c48554afe84cffcf7cbcd26f435269d6f419bb9255a71f39e50bc2c3a2e

  • SHA512

    950f65471ac9174aa8706854f86f1501c1ec9bad5c0f00e6742bab9720e02c7694694093e9808c9bfa7a760d235c998332e367372ebec5ce07bf3bd3863a7ce9

  • SSDEEP

    6144:Pch5remK3mpw027zTuHDVlVKD+YhGlaSGExpYG6YKJcVpZCO3lljh:85rdNpw0EyOTgoSGExC4KJIjh

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1112
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1164
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1192
          • C:\Users\Admin\AppData\Local\Temp\f5efbee9d2ec391369463f54d305aceb_JaffaCakes118.exe
            "C:\Users\Admin\AppData\Local\Temp\f5efbee9d2ec391369463f54d305aceb_JaffaCakes118.exe"
            2⤵
            • Loads dropped DLL
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3040
            • C:\Users\Admin\AppData\Roaming\Ehjee\yghu.exe
              "C:\Users\Admin\AppData\Roaming\Ehjee\yghu.exe"
              3⤵
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:1396
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpa4979993.bat"
              3⤵
              • Deletes itself
              • System Location Discovery: System Language Discovery
              PID:2500
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:2036

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\tmpa4979993.bat

            Filesize

            271B

            MD5

            dae8a749e9e9561e2f11f8dac4a47405

            SHA1

            e14b09c8fab745bc673bfbf57161f6669396f740

            SHA256

            f4504c37903dfecb151a61b8005df2e9d8b0ebf5ce6178f59fc316a7ffbe945f

            SHA512

            7ab280cba9e3a93ce9688e80b2a76206888b4b13ca29e2cbd268b9ca59f2e71b8141b41615ab427703c4f1f11fffbd71a4f4bd8228154e1f57907899d67862b4

          • C:\Users\Admin\AppData\Roaming\Ehjee\yghu.exe

            Filesize

            297KB

            MD5

            400a674da7f1354553364797d0ed53d3

            SHA1

            f9c0a473e1fefd99651cd51e963764983547ad04

            SHA256

            fef7e5346408eed39a24f2bd406c769789015e568dd71a3cfc0ae3f3dc4c2770

            SHA512

            69e9073dc6f6e465d5b35da7c77ec8981b17dbd1a47d0a46aaaa56feb83cb3ad020524e68ff2af7af78bc635076879ba4a6124f6827d44961a56257a8282447d

          • C:\Users\Admin\AppData\Roaming\Koro\ybri.elo

            Filesize

            380B

            MD5

            5c52613eeb027aedb1032eb4deca99ca

            SHA1

            9aae31349c9670edf3688161e58cbac5fd132877

            SHA256

            a839c7847c5c826343f91b96ff30d8ee92de12485846fb482de577f47bd96930

            SHA512

            25c007c45eba78395d313ef47fc93c27d80860c1f6670f531b307b734991a1f83488fce7f5f41870e75790f2efacad166e05c780609b7e3c92c6ff49a81168c3

          • memory/1112-22-0x0000000000420000-0x000000000045D000-memory.dmp

            Filesize

            244KB

          • memory/1112-24-0x0000000000420000-0x000000000045D000-memory.dmp

            Filesize

            244KB

          • memory/1112-16-0x0000000000420000-0x000000000045D000-memory.dmp

            Filesize

            244KB

          • memory/1112-18-0x0000000000420000-0x000000000045D000-memory.dmp

            Filesize

            244KB

          • memory/1112-20-0x0000000000420000-0x000000000045D000-memory.dmp

            Filesize

            244KB

          • memory/1164-27-0x0000000001DA0000-0x0000000001DDD000-memory.dmp

            Filesize

            244KB

          • memory/1164-29-0x0000000001DA0000-0x0000000001DDD000-memory.dmp

            Filesize

            244KB

          • memory/1164-30-0x0000000001DA0000-0x0000000001DDD000-memory.dmp

            Filesize

            244KB

          • memory/1164-28-0x0000000001DA0000-0x0000000001DDD000-memory.dmp

            Filesize

            244KB

          • memory/1192-34-0x00000000024E0000-0x000000000251D000-memory.dmp

            Filesize

            244KB

          • memory/1192-32-0x00000000024E0000-0x000000000251D000-memory.dmp

            Filesize

            244KB

          • memory/1192-36-0x00000000024E0000-0x000000000251D000-memory.dmp

            Filesize

            244KB

          • memory/1192-38-0x00000000024E0000-0x000000000251D000-memory.dmp

            Filesize

            244KB

          • memory/1396-274-0x0000000000400000-0x00000000007FF000-memory.dmp

            Filesize

            4.0MB

          • memory/1396-52-0x0000000000400000-0x00000000007FF000-memory.dmp

            Filesize

            4.0MB

          • memory/1396-51-0x0000000000400000-0x00000000007FF000-memory.dmp

            Filesize

            4.0MB

          • memory/2036-44-0x0000000001F50000-0x0000000001F8D000-memory.dmp

            Filesize

            244KB

          • memory/2036-41-0x0000000001F50000-0x0000000001F8D000-memory.dmp

            Filesize

            244KB

          • memory/2036-42-0x0000000001F50000-0x0000000001F8D000-memory.dmp

            Filesize

            244KB

          • memory/2036-43-0x0000000001F50000-0x0000000001F8D000-memory.dmp

            Filesize

            244KB

          • memory/3040-67-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-71-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-48-0x00000000002C0000-0x00000000002FD000-memory.dmp

            Filesize

            244KB

          • memory/3040-47-0x00000000002C0000-0x00000000002FD000-memory.dmp

            Filesize

            244KB

          • memory/3040-46-0x00000000002C0000-0x00000000002FD000-memory.dmp

            Filesize

            244KB

          • memory/3040-50-0x00000000002C0000-0x00000000002FD000-memory.dmp

            Filesize

            244KB

          • memory/3040-53-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-55-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-57-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-59-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-61-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-63-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-65-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-1-0x0000000000220000-0x0000000000221000-memory.dmp

            Filesize

            4KB

          • memory/3040-69-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-49-0x00000000002C0000-0x00000000002FD000-memory.dmp

            Filesize

            244KB

          • memory/3040-73-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-75-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-77-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-79-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-81-0x0000000000340000-0x0000000000341000-memory.dmp

            Filesize

            4KB

          • memory/3040-15-0x0000000002790000-0x0000000002B8F000-memory.dmp

            Filesize

            4.0MB

          • memory/3040-137-0x0000000000400000-0x00000000007FF000-memory.dmp

            Filesize

            4.0MB

          • memory/3040-13-0x0000000002790000-0x0000000002B8F000-memory.dmp

            Filesize

            4.0MB

          • memory/3040-5-0x0000000000400000-0x00000000007FF000-memory.dmp

            Filesize

            4.0MB

          • memory/3040-155-0x0000000000400000-0x00000000007F6000-memory.dmp

            Filesize

            4.0MB

          • memory/3040-156-0x0000000000400000-0x00000000007FF000-memory.dmp

            Filesize

            4.0MB

          • memory/3040-0-0x0000000000400000-0x00000000007FF000-memory.dmp

            Filesize

            4.0MB

          • memory/3040-2-0x0000000000400000-0x00000000007F6000-memory.dmp

            Filesize

            4.0MB