Analysis

  • max time kernel
    141s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 02:26

General

  • Target

    Statement of Account.exe

  • Size

    441KB

  • MD5

    3ee58a720e88f477d6f817c44aa7c47b

  • SHA1

    9b68c4d21b544c3fa4fcfa6f469480a70fe8a947

  • SHA256

    9a813db555b2a251a1068f50b1b02d642bb570337058f7f3a7028cafccbe1f54

  • SHA512

    535c2869714cd970160dfe85f23735979dec4e08244e3e73e954bd6a7d902ae578046533be9f34a8e9e174232b9a640b2a327305e52a91cbd2da96080d1047ab

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.haden-tours.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    In-159753

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Statement of Account.exe
    "C:\Users\Admin\AppData\Local\Temp\Statement of Account.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Users\Admin\AppData\Local\Temp\Statement of Account.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2036

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/632-54-0x0000000075391000-0x0000000075393000-memory.dmp

    Filesize

    8KB

  • memory/632-55-0x0000000074AD0000-0x000000007507B000-memory.dmp

    Filesize

    5.7MB

  • memory/2036-56-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2036-57-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2036-59-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2036-60-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2036-61-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2036-62-0x00000000004485FE-mapping.dmp

  • memory/2036-64-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2036-66-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2036-68-0x0000000074AD0000-0x000000007507B000-memory.dmp

    Filesize

    5.7MB