Analysis

  • max time kernel
    146s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 22:37

General

  • Target

    HBL.XML.document5.exe

  • Size

    609KB

  • MD5

    0f8fa81d21ef22bb74d557f2bc775b88

  • SHA1

    970259ff5d86466bbd86cbcc2515d66d07541983

  • SHA256

    936f5e5e867ca1c182bfe0dde236ee7605131e3082371a3ce34d2c82c4428881

  • SHA512

    f1f6aacdc50217d529e932673d0368a45a79d90f10ea5201604e375d9a55b66e0db148c0516e82259b85d26f9eb75070e87f0cd02e6cbda7554f2e71532076f4

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    qwerty123@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • 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 5 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\HBL.XML.document5.exe
    "C:\Users\Admin\AppData\Local\Temp\HBL.XML.document5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3536
    • C:\Users\Admin\AppData\Local\Temp\HBL.XML.document5.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3540

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3536-130-0x0000000000520000-0x00000000005BE000-memory.dmp

    Filesize

    632KB

  • memory/3536-131-0x0000000004F10000-0x0000000004FAC000-memory.dmp

    Filesize

    624KB

  • memory/3536-132-0x00000000056A0000-0x0000000005732000-memory.dmp

    Filesize

    584KB

  • memory/3540-133-0x0000000000000000-mapping.dmp

  • memory/3540-134-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3540-135-0x0000000005C20000-0x00000000061C4000-memory.dmp

    Filesize

    5.6MB

  • memory/3540-136-0x0000000006410000-0x0000000006476000-memory.dmp

    Filesize

    408KB

  • memory/3540-137-0x0000000006910000-0x0000000006960000-memory.dmp

    Filesize

    320KB