Analysis

  • max time kernel
    140s
  • max time network
    108s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-09-2024 15:42

General

  • Target

    fc9e2df82fdda41c3cbbe5037c9afa51_JaffaCakes118.exe

  • Size

    792KB

  • MD5

    fc9e2df82fdda41c3cbbe5037c9afa51

  • SHA1

    ff6576a6d5d23d775a4960b7ccbb5727044501c9

  • SHA256

    8ceba0ecd94e885f32b2e9b68373691b43887e70f6bc903878fdb74551fc919d

  • SHA512

    5f274914d0d409d467bbca42c18be3df3d46289a5b1e9716afde21d9cbc07b8acc7439202fd8678881597fbe3ae698fdbec8ac0ea509bbe15410af27a3038e4c

  • SSDEEP

    12288:GjbBOJuk1EYLwotbltPbjn1gFi7Vik4BKVToDdE0iKKEDB:dn7LPXVui7ViFrRDi+9

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.knmbz.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    $rGTkHr0

Signatures

  • AgentTesla

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

  • AgentTesla payload 8 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
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 5 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.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc9e2df82fdda41c3cbbe5037c9afa51_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fc9e2df82fdda41c3cbbe5037c9afa51_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3224
    • C:\Users\Admin\AppData\Local\Temp\fc9e2df82fdda41c3cbbe5037c9afa51_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\fc9e2df82fdda41c3cbbe5037c9afa51_JaffaCakes118.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3352

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3224-9-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/3224-1-0x00000000022F0000-0x0000000002303000-memory.dmp

    Filesize

    76KB

  • memory/3224-3-0x0000000002430000-0x0000000002431000-memory.dmp

    Filesize

    4KB

  • memory/3224-0-0x0000000002260000-0x0000000002261000-memory.dmp

    Filesize

    4KB

  • memory/3352-8-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/3352-7-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/3352-10-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/3352-6-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/3352-4-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/3352-24-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/3352-23-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/3352-11-0x00000000009A0000-0x00000000009DC000-memory.dmp

    Filesize

    240KB

  • memory/3352-12-0x00000000009A0000-0x00000000009DC000-memory.dmp

    Filesize

    240KB

  • memory/3352-25-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB