Analysis

  • max time kernel
    139s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 00:09

General

  • Target

    Doc_072720206446.exe

  • Size

    527KB

  • MD5

    e4779604597264d5b3027188b7fd08fa

  • SHA1

    095aca48d9e6a83bc8d327457e6b2dffdcb01afd

  • SHA256

    b2755efb7d2ef6f5bc7214e4d02dbd6c48cd299f5477924501e97eee7a088b0a

  • SHA512

    0c93b0a8544468548714fbdbb0545243de9462702b6fbf6a909aa3eb3ac06be0e787dc47cdb0f6ad57e6f04174d26d6339493163b0da656994a08518d51fa2af

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    kelechi12

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 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\Doc_072720206446.exe
    "C:\Users\Admin\AppData\Local\Temp\Doc_072720206446.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1880
    • C:\Users\Admin\AppData\Local\Temp\Doc_072720206446.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:1476

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1476-64-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1476-59-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1476-60-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1476-62-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1476-63-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1476-65-0x0000000000446F8E-mapping.dmp

  • memory/1476-67-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1476-69-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1880-55-0x00000000755A1000-0x00000000755A3000-memory.dmp

    Filesize

    8KB

  • memory/1880-56-0x00000000002B0000-0x00000000002B8000-memory.dmp

    Filesize

    32KB

  • memory/1880-57-0x0000000007400000-0x0000000007472000-memory.dmp

    Filesize

    456KB

  • memory/1880-58-0x0000000000520000-0x0000000000576000-memory.dmp

    Filesize

    344KB

  • memory/1880-54-0x0000000000210000-0x000000000029A000-memory.dmp

    Filesize

    552KB