Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/04/2024, 18:48

General

  • Target

    a3c456ecc1486eba53b3f5bfc4239801_JaffaCakes118.exe

  • Size

    580KB

  • MD5

    a3c456ecc1486eba53b3f5bfc4239801

  • SHA1

    78183902a79cbe8e80147812e1673fff4ba9578f

  • SHA256

    b5ddeb43afd6bc4075b950d215095d71ab3ba09094d54f979ce9de91df915834

  • SHA512

    ab84a768ad1dc007402c31b4705bb96c65be22a36bba2565e6d8a65dc6951ede3d8f8a35629ead225c1083ee8201c47939f0367e6e8d4075d325512d7ec11550

  • SSDEEP

    12288:JBu1nmJy/NaN03liqqG+feq9ZUws7Ami4IxePCLOBxjA0UnJNfFLJt:JBamCsNgZqHvPH4AoFPCLOBx8V7t

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1910194363:AAH66amlxNaIwaIfI1AdRKORBzDDVieupMA/sendDocument

Signatures

  • AgentTesla

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

  • AgentTesla payload 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3c456ecc1486eba53b3f5bfc4239801_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a3c456ecc1486eba53b3f5bfc4239801_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3004
    • C:\Users\Admin\AppData\Local\Temp\a3c456ecc1486eba53b3f5bfc4239801_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\a3c456ecc1486eba53b3f5bfc4239801_JaffaCakes118.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1128

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a3c456ecc1486eba53b3f5bfc4239801_JaffaCakes118.exe.log

          Filesize

          2KB

          MD5

          fbd5e75bae4e3d2db57a0f9b5ed0df97

          SHA1

          fcb87f79f8748e213d407b78f932f105f04c98e5

          SHA256

          d87a05d026303c360e84bf915b81bea3f8bc81edcb3a53cb1a64d3852f4e9367

          SHA512

          639c3c4d3e57113dda7c980d2f1752579701d5371a3170b5f65a6f21ab427e130b2a3ff226de3fbbea0041be6e476ae98714d4ab75a17e2988fa5974ffa1a803

        • memory/1128-19-0x0000000006220000-0x0000000006286000-memory.dmp

          Filesize

          408KB

        • memory/1128-16-0x0000000074A90000-0x0000000075240000-memory.dmp

          Filesize

          7.7MB

        • memory/1128-24-0x0000000005380000-0x0000000005390000-memory.dmp

          Filesize

          64KB

        • memory/1128-23-0x0000000005380000-0x0000000005390000-memory.dmp

          Filesize

          64KB

        • memory/1128-22-0x0000000006790000-0x00000000067E0000-memory.dmp

          Filesize

          320KB

        • memory/1128-21-0x0000000005380000-0x0000000005390000-memory.dmp

          Filesize

          64KB

        • memory/1128-20-0x0000000074A90000-0x0000000075240000-memory.dmp

          Filesize

          7.7MB

        • memory/1128-18-0x0000000005390000-0x00000000053A8000-memory.dmp

          Filesize

          96KB

        • memory/1128-12-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/1128-17-0x0000000005380000-0x0000000005390000-memory.dmp

          Filesize

          64KB

        • memory/3004-7-0x0000000005C30000-0x0000000005C48000-memory.dmp

          Filesize

          96KB

        • memory/3004-9-0x0000000005C80000-0x0000000005C90000-memory.dmp

          Filesize

          64KB

        • memory/3004-8-0x0000000074A90000-0x0000000075240000-memory.dmp

          Filesize

          7.7MB

        • memory/3004-2-0x0000000006080000-0x0000000006624000-memory.dmp

          Filesize

          5.6MB

        • memory/3004-15-0x0000000074A90000-0x0000000075240000-memory.dmp

          Filesize

          7.7MB

        • memory/3004-10-0x0000000008710000-0x00000000087AC000-memory.dmp

          Filesize

          624KB

        • memory/3004-0-0x0000000000FF0000-0x0000000001088000-memory.dmp

          Filesize

          608KB

        • memory/3004-1-0x0000000074A90000-0x0000000075240000-memory.dmp

          Filesize

          7.7MB

        • memory/3004-11-0x00000000088C0000-0x0000000008932000-memory.dmp

          Filesize

          456KB

        • memory/3004-6-0x0000000005B40000-0x0000000005B5C000-memory.dmp

          Filesize

          112KB

        • memory/3004-5-0x0000000005B10000-0x0000000005B1A000-memory.dmp

          Filesize

          40KB

        • memory/3004-4-0x0000000005C80000-0x0000000005C90000-memory.dmp

          Filesize

          64KB

        • memory/3004-3-0x0000000005A20000-0x0000000005AB2000-memory.dmp

          Filesize

          584KB