Analysis

  • max time kernel
    148s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-09-2024 03:16

General

  • Target

    f50da061ba24d56e3121a2a9ad82402d_JaffaCakes118.exe

  • Size

    293KB

  • MD5

    f50da061ba24d56e3121a2a9ad82402d

  • SHA1

    a895da1a7db8ed660fb707f0981328fde1388d73

  • SHA256

    bd52e6cb9f9f9cddcad91dd9a9574a74f007d66f3c1f72a4e7618ea17c2354cc

  • SHA512

    db7d85227c66d627d52c45bdc274fc0286109e9ed23f503833c130c629759c3b68404627aa241b5b8118cf9783ca3abd6d83c36f6cabd354f59d2e00a71c7d98

  • SSDEEP

    6144:E08wLkUthveqDaWM8HleuLPJ+FFWVaJOHO4TyQOI5JgpcvqNplc4F4bsVYexS:E08MkUDvwoeiPMFFJJCXT0Iw5p4brGS

Malware Config

Extracted

Family

metasploit

Version

encoder/fnstenv_mov

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Executes dropped EXE 10 IoCs
  • Loads dropped DLL 20 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 11 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 22 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • Modifies registry class 33 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f50da061ba24d56e3121a2a9ad82402d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f50da061ba24d56e3121a2a9ad82402d_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2960
    • C:\Windows\SysWOW64\taskmrg.exe
      C:\Windows\system32\taskmrg.exe 520 "C:\Users\Admin\AppData\Local\Temp\f50da061ba24d56e3121a2a9ad82402d_JaffaCakes118.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Writes to the Master Boot Record (MBR)
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2620
      • C:\Windows\SysWOW64\taskmrg.exe
        C:\Windows\system32\taskmrg.exe 548 "C:\Windows\SysWOW64\taskmrg.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Writes to the Master Boot Record (MBR)
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:2700
        • C:\Windows\SysWOW64\taskmrg.exe
          C:\Windows\system32\taskmrg.exe 556 "C:\Windows\SysWOW64\taskmrg.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Writes to the Master Boot Record (MBR)
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:584
          • C:\Windows\SysWOW64\taskmrg.exe
            C:\Windows\system32\taskmrg.exe 612 "C:\Windows\SysWOW64\taskmrg.exe"
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Writes to the Master Boot Record (MBR)
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Modifies registry class
            • Suspicious use of WriteProcessMemory
            PID:2824
            • C:\Windows\SysWOW64\taskmrg.exe
              C:\Windows\system32\taskmrg.exe 560 "C:\Windows\SysWOW64\taskmrg.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Writes to the Master Boot Record (MBR)
              • Drops file in System32 directory
              • System Location Discovery: System Language Discovery
              • Modifies registry class
              • Suspicious use of WriteProcessMemory
              PID:2244
              • C:\Windows\SysWOW64\taskmrg.exe
                C:\Windows\system32\taskmrg.exe 552 "C:\Windows\SysWOW64\taskmrg.exe"
                7⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Writes to the Master Boot Record (MBR)
                • Drops file in System32 directory
                • System Location Discovery: System Language Discovery
                • Modifies registry class
                • Suspicious use of WriteProcessMemory
                PID:1660
                • C:\Windows\SysWOW64\taskmrg.exe
                  C:\Windows\system32\taskmrg.exe 572 "C:\Windows\SysWOW64\taskmrg.exe"
                  8⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • Writes to the Master Boot Record (MBR)
                  • Drops file in System32 directory
                  • System Location Discovery: System Language Discovery
                  • Modifies registry class
                  • Suspicious use of WriteProcessMemory
                  PID:1896
                  • C:\Windows\SysWOW64\taskmrg.exe
                    C:\Windows\system32\taskmrg.exe 564 "C:\Windows\SysWOW64\taskmrg.exe"
                    9⤵
                    • Executes dropped EXE
                    • Loads dropped DLL
                    • Writes to the Master Boot Record (MBR)
                    • Drops file in System32 directory
                    • System Location Discovery: System Language Discovery
                    • Modifies registry class
                    • Suspicious use of WriteProcessMemory
                    PID:2284
                    • C:\Windows\SysWOW64\taskmrg.exe
                      C:\Windows\system32\taskmrg.exe 588 "C:\Windows\SysWOW64\taskmrg.exe"
                      10⤵
                      • Executes dropped EXE
                      • Loads dropped DLL
                      • Writes to the Master Boot Record (MBR)
                      • Drops file in System32 directory
                      • System Location Discovery: System Language Discovery
                      • Modifies registry class
                      • Suspicious use of WriteProcessMemory
                      PID:1160
                      • C:\Windows\SysWOW64\taskmrg.exe
                        C:\Windows\system32\taskmrg.exe 568 "C:\Windows\SysWOW64\taskmrg.exe"
                        11⤵
                        • Executes dropped EXE
                        • Writes to the Master Boot Record (MBR)
                        • Drops file in System32 directory
                        • System Location Discovery: System Language Discovery
                        • Modifies registry class
                        PID:1432

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Windows\SysWOW64\taskmrg.exe

    Filesize

    293KB

    MD5

    f50da061ba24d56e3121a2a9ad82402d

    SHA1

    a895da1a7db8ed660fb707f0981328fde1388d73

    SHA256

    bd52e6cb9f9f9cddcad91dd9a9574a74f007d66f3c1f72a4e7618ea17c2354cc

    SHA512

    db7d85227c66d627d52c45bdc274fc0286109e9ed23f503833c130c629759c3b68404627aa241b5b8118cf9783ca3abd6d83c36f6cabd354f59d2e00a71c7d98

  • memory/584-43-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/584-46-0x0000000003C20000-0x0000000003D87000-memory.dmp

    Filesize

    1.4MB

  • memory/584-48-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/584-41-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/1160-84-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/1160-82-0x0000000002EB0000-0x0000000003017000-memory.dmp

    Filesize

    1.4MB

  • memory/1160-79-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/1432-85-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/1660-66-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/1660-61-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/1896-67-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/1896-65-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/1896-70-0x0000000002E40000-0x0000000002FA7000-memory.dmp

    Filesize

    1.4MB

  • memory/1896-73-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2244-60-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2244-58-0x0000000002E40000-0x0000000002FA7000-memory.dmp

    Filesize

    1.4MB

  • memory/2244-55-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2284-72-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2284-74-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2284-78-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2620-36-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2620-33-0x0000000002F20000-0x0000000003087000-memory.dmp

    Filesize

    1.4MB

  • memory/2620-30-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2700-37-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2700-35-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2700-42-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2824-49-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2824-54-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2960-3-0x00000000005D0000-0x00000000005D1000-memory.dmp

    Filesize

    4KB

  • memory/2960-7-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/2960-25-0x0000000002E40000-0x0000000002FA7000-memory.dmp

    Filesize

    1.4MB

  • memory/2960-24-0x0000000002E40000-0x0000000002FA7000-memory.dmp

    Filesize

    1.4MB

  • memory/2960-2-0x00000000005C0000-0x00000000005C1000-memory.dmp

    Filesize

    4KB

  • memory/2960-0-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2960-4-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/2960-5-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2960-6-0x0000000000590000-0x0000000000591000-memory.dmp

    Filesize

    4KB

  • memory/2960-28-0x0000000000400000-0x0000000000567000-memory.dmp

    Filesize

    1.4MB

  • memory/2960-9-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/2960-10-0x0000000000310000-0x0000000000311000-memory.dmp

    Filesize

    4KB

  • memory/2960-11-0x0000000000300000-0x0000000000301000-memory.dmp

    Filesize

    4KB

  • memory/2960-12-0x00000000003F0000-0x00000000003F1000-memory.dmp

    Filesize

    4KB

  • memory/2960-13-0x0000000000580000-0x0000000000581000-memory.dmp

    Filesize

    4KB

  • memory/2960-14-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2960-8-0x00000000002F0000-0x00000000002F1000-memory.dmp

    Filesize

    4KB

  • memory/2960-1-0x0000000000570000-0x0000000000576000-memory.dmp

    Filesize

    24KB