Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-09-2024 14:01

General

  • Target

    Fatura nº 4052804664.scr

  • Size

    693KB

  • MD5

    a0de9f804b692969d93ba2a8011f73a4

  • SHA1

    247b67ca3f7d4f1017a537abb96384136936b78b

  • SHA256

    cc58af4374174d975a7fc1abc5f43a0f537da1482334b95631ea9d5668db7304

  • SHA512

    7dca8968d20f3159c75a5b6effb67456a30309f4652e9b45fa577ef19fe23a6532aa69532f4c28ae819be0da3a455b44971836fce7a041ffd143904c13cbbce9

  • SSDEEP

    12288:nS993Hgi8MefNnUlSAgsWYTfxCIpIj4LcGPhGgXHXelLEAmD:qTmM77lTfxC/GpGgA

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5187914704:AAHhM5YfeLYR_Ow0fgwMOZKO7je7btbh5DA/

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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.

  • 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 1 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
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 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\Fatura nº 4052804664.scr
    "C:\Users\Admin\AppData\Local\Temp\Fatura nº 4052804664.scr" /S
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2912
    • C:\Users\Admin\AppData\Local\Temp\Fatura nº 4052804664.scr
      "C:\Users\Admin\AppData\Local\Temp\Fatura nº 4052804664.scr"
      2⤵
      • 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:440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Fatura nº 4052804664.scr.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/440-11-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/440-26-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/440-25-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/440-24-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/440-20-0x0000000006A20000-0x0000000006A70000-memory.dmp

    Filesize

    320KB

  • memory/440-18-0x0000000005DF0000-0x0000000005E56000-memory.dmp

    Filesize

    408KB

  • memory/440-17-0x0000000005D40000-0x0000000005D58000-memory.dmp

    Filesize

    96KB

  • memory/440-16-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/440-14-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/2912-4-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/2912-10-0x00000000089C0000-0x0000000008A5C000-memory.dmp

    Filesize

    624KB

  • memory/2912-9-0x00000000061C0000-0x000000000623E000-memory.dmp

    Filesize

    504KB

  • memory/2912-8-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/2912-15-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/2912-7-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

    Filesize

    4KB

  • memory/2912-6-0x00000000053E0000-0x00000000053F0000-memory.dmp

    Filesize

    64KB

  • memory/2912-0-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

    Filesize

    4KB

  • memory/2912-5-0x0000000004D40000-0x0000000004D4A000-memory.dmp

    Filesize

    40KB

  • memory/2912-3-0x0000000004D70000-0x0000000004E02000-memory.dmp

    Filesize

    584KB

  • memory/2912-2-0x0000000005470000-0x0000000005A14000-memory.dmp

    Filesize

    5.6MB

  • memory/2912-1-0x0000000000400000-0x00000000004B4000-memory.dmp

    Filesize

    720KB