Analysis

  • max time kernel
    94s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-01-2025 23:50

General

  • Target

    JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe

  • Size

    350KB

  • MD5

    b37307f153f10f0299c68e21cda50830

  • SHA1

    1475e31efca6cbaccbc4c942a88c500e0b22ccb0

  • SHA256

    9557bc3e8544245727beca4004e71d616515ce39dc8b6cc27c3332614e9aa27a

  • SHA512

    995bdd5eccc5801cd58284d385e1fd74f3fb2db9e884617d129ec4e77df75a504b0e7edf586b86bc3f979da7f8243d7c06752b993521245e373e7c9b6f87baca

  • SSDEEP

    6144:sZl2fltfzOHfEu6YdtLnIbtLV0433k85AKYzAeCnvW1BzdCC0Af3a1:sm/2JndtOtZLkqUzAeCvW1+dM3a1

Malware Config

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Agenttesla family
  • AgentTesla payload 15 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 3 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 10 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3160
    • C:\Users\Admin\AppData\Local\Temp\kR8aM0MJZ5fj8ja.exe
      C:\Users\Admin\AppData\Local\Temp\kR8aM0MJZ5fj8ja.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:764
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        C:\Users\Admin\AppData\Local\Temp\kR8aM0MJZ5fj8ja.exe
        3⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:412
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4676

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

    Filesize

    404KB

    MD5

    109df0f55366f8547704613ff992c4bd

    SHA1

    bd8ff519c7aeb16f747269fb04c19326329434bb

    SHA256

    76f99d8456dc0e2f60e429203d1d26dca41049cb26265a8e29c88fa92e0df588

    SHA512

    7e96b69d5a34fca9a167ef8a6c49aafe1556ade5b0420e9ec76c6309402c54c2c7b1dc24a0da7a138be7691c95437851e003f5a4575a0b7b5cbc4c8bfbe22127

  • C:\Users\Admin\AppData\Local\Temp\kR8aM0MJZ5fj8ja.exe

    Filesize

    267KB

    MD5

    c9f00fe1929c71a9de2e73434b288eee

    SHA1

    2e1932cbe3cacfbd27ec01c089ad0b4e8268d8a7

    SHA256

    478f1269193cc62ff2180c53eecc56e287417539287520e03b362773b58c78be

    SHA512

    f9ce552a3ccd219692ef38c71f9a2959ffa08e9dc14ca0ec69c354a24fe855515c0525ca8e6e2c9cad48e4967774178c5cee7dc88fb577dc4dec0bc4616c8600

  • C:\Windows\CTS.exe

    Filesize

    82KB

    MD5

    546ffd2b72777e6a9e350780b79f99d4

    SHA1

    a620be74a2f432656e38e51cd02fbdc3e3b312c2

    SHA256

    c651b378896fad56ddeb1fec2c578a822bbb13269ec881f9420bbf47c9fbfbb5

    SHA512

    57d49f830f9774ef0a4b6d026211360ea4ebcc6b236b72107401284559c7c589733bccc8af10c5a0cee5b97880d24a4e9954beb81887b1b124f8a42cca456fac

  • memory/412-69-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-72-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-67-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-64-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-68-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-60-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-70-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-65-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-74-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-78-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-80-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-81-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-83-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-75-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/412-66-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/764-58-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-36-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-50-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-49-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-48-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-47-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-46-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-45-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-44-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-43-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-42-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-41-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-40-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-39-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-37-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-5-0x0000000000A50000-0x0000000000AB1000-memory.dmp

    Filesize

    388KB

  • memory/764-52-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-62-0x0000000000A50000-0x0000000000AB1000-memory.dmp

    Filesize

    388KB

  • memory/764-53-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-54-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-55-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-56-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-57-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-33-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-59-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-38-0x0000000000A50000-0x0000000000AB1000-memory.dmp

    Filesize

    388KB

  • memory/764-35-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/764-34-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/3160-0-0x00000000006C0000-0x00000000006D9000-memory.dmp

    Filesize

    100KB

  • memory/3160-8-0x00000000006C0000-0x00000000006D9000-memory.dmp

    Filesize

    100KB

  • memory/4676-9-0x00000000001B0000-0x00000000001C9000-memory.dmp

    Filesize

    100KB

  • memory/4676-51-0x00000000001B0000-0x00000000001C9000-memory.dmp

    Filesize

    100KB