Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    19-04-2024 11:45

General

  • Target

    fa39f0ee34d558d972ab192901c9ca62_JaffaCakes118.exe

  • Size

    77KB

  • MD5

    fa39f0ee34d558d972ab192901c9ca62

  • SHA1

    6a742c21728ecad9781e465034f0653889a1e9ad

  • SHA256

    bf89dae393e83aaa42efbbb88417bd9aaa7bbcfc47dd564e9367aa2db0822a03

  • SHA512

    cbd89ff63756d3e46e8190968f0b2a5bbc25ae4d616857135b1e860c1c46fbdeec696257f6392fe95dedb3db468c5964b70d3d28e02d3bbf5eeffc744f1dd691

  • SSDEEP

    1536:GCesb1DS6HUTn5Dof9VOQA1/TOfXRN6dZBbM+eqRPj57FulH:GkogW58f9V01qf/4deqR71FulH

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

  • MetaSploit

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

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 5 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fa39f0ee34d558d972ab192901c9ca62_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fa39f0ee34d558d972ab192901c9ca62_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Users\Admin\AppData\Local\Temp\fa39f0ee34d558d972ab192901c9ca62_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\fa39f0ee34d558d972ab192901c9ca62_JaffaCakes118.exe
      2⤵
      • Adds policy Run key to start application
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2192
      • C:\Windows\ymic.exe
        "C:\Windows\ymic.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1512
        • C:\Windows\ymic.exe
          C:\Windows\ymic.exe
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2596

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\ymic.exe

    Filesize

    77KB

    MD5

    fa39f0ee34d558d972ab192901c9ca62

    SHA1

    6a742c21728ecad9781e465034f0653889a1e9ad

    SHA256

    bf89dae393e83aaa42efbbb88417bd9aaa7bbcfc47dd564e9367aa2db0822a03

    SHA512

    cbd89ff63756d3e46e8190968f0b2a5bbc25ae4d616857135b1e860c1c46fbdeec696257f6392fe95dedb3db468c5964b70d3d28e02d3bbf5eeffc744f1dd691

  • memory/1512-48-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/1512-29-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/1720-15-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/1720-0-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/1720-3-0x0000000000230000-0x0000000000250000-memory.dmp

    Filesize

    128KB

  • memory/2192-14-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2192-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2192-28-0x00000000003E0000-0x0000000000400000-memory.dmp

    Filesize

    128KB

  • memory/2192-8-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2192-18-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2192-19-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2192-6-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2192-4-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2192-17-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2192-27-0x00000000003E0000-0x0000000000400000-memory.dmp

    Filesize

    128KB

  • memory/2192-10-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-58-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-61-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-54-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-60-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-57-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-52-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-67-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-55-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-59-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-62-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-63-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-64-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-65-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-66-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2596-56-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB