Analysis

  • max time kernel
    130s
  • max time network
    114s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-04-2024 20:52

General

  • Target

    f8b96f721fc20f61ae9becc6b8859d4d_JaffaCakes118.exe

  • Size

    694KB

  • MD5

    f8b96f721fc20f61ae9becc6b8859d4d

  • SHA1

    cbdf4e9d755539f7148d7fc9183a9b7a15a2e0d1

  • SHA256

    066a2a8fc33e9061317c324584fa20f45359b743caf41d54885554d1fe9b924b

  • SHA512

    fccd4b69b8c16c1f1ab6c067e0123e507235c0b5beac44556014170b057bac97d6e786b0d88dd0b43887835102e1bf8280cec50a6e5ead0598c049a7bbc8a86b

  • SSDEEP

    12288:qhvJIyDzxssh7SFMktGtqB29Ie7xgaHih7INeS/LJgDSs0:imyDF5lSqe0qB29Ie7rHihsNeeVvs

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.topfrozenfoodbrand.com
  • Port:
    587
  • Username:
    cuenta@topfrozenfoodbrand.com
  • Password:
    Everest10account
  • Email To:
    account@topfrozenfoodbrand.com

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Drops file in Drivers directory 1 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 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f8b96f721fc20f61ae9becc6b8859d4d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f8b96f721fc20f61ae9becc6b8859d4d_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4224
    • C:\Users\Admin\AppData\Local\Temp\f8b96f721fc20f61ae9becc6b8859d4d_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\f8b96f721fc20f61ae9becc6b8859d4d_JaffaCakes118.exe"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4120
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 1564
        3⤵
        • Program crash
        PID:3052
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4120 -ip 4120
    1⤵
      PID:1020

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Collection

    Data from Local System

    4
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4120-11-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/4120-22-0x0000000074FE0000-0x0000000075790000-memory.dmp
      Filesize

      7.7MB

    • memory/4120-21-0x00000000061B0000-0x0000000006200000-memory.dmp
      Filesize

      320KB

    • memory/4120-19-0x0000000005390000-0x00000000053A0000-memory.dmp
      Filesize

      64KB

    • memory/4120-18-0x0000000074FE0000-0x0000000075790000-memory.dmp
      Filesize

      7.7MB

    • memory/4120-17-0x0000000006040000-0x00000000060A6000-memory.dmp
      Filesize

      408KB

    • memory/4120-16-0x0000000005680000-0x0000000005698000-memory.dmp
      Filesize

      96KB

    • memory/4120-15-0x0000000005390000-0x00000000053A0000-memory.dmp
      Filesize

      64KB

    • memory/4120-14-0x0000000074FE0000-0x0000000075790000-memory.dmp
      Filesize

      7.7MB

    • memory/4224-5-0x0000000005730000-0x000000000573A000-memory.dmp
      Filesize

      40KB

    • memory/4224-10-0x00000000080E0000-0x0000000008164000-memory.dmp
      Filesize

      528KB

    • memory/4224-9-0x0000000006C90000-0x0000000006D2C000-memory.dmp
      Filesize

      624KB

    • memory/4224-13-0x0000000074FE0000-0x0000000075790000-memory.dmp
      Filesize

      7.7MB

    • memory/4224-8-0x0000000005910000-0x0000000005920000-memory.dmp
      Filesize

      64KB

    • memory/4224-7-0x0000000074FE0000-0x0000000075790000-memory.dmp
      Filesize

      7.7MB

    • memory/4224-6-0x0000000005810000-0x0000000005828000-memory.dmp
      Filesize

      96KB

    • memory/4224-0-0x0000000000C20000-0x0000000000CD4000-memory.dmp
      Filesize

      720KB

    • memory/4224-4-0x0000000005910000-0x0000000005920000-memory.dmp
      Filesize

      64KB

    • memory/4224-3-0x0000000005690000-0x0000000005722000-memory.dmp
      Filesize

      584KB

    • memory/4224-2-0x0000000005D40000-0x00000000062E4000-memory.dmp
      Filesize

      5.6MB

    • memory/4224-1-0x0000000074FE0000-0x0000000075790000-memory.dmp
      Filesize

      7.7MB