Analysis

  • max time kernel
    68s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    30-06-2020 12:49

General

  • Target

    SWIFT EUR 21924,74 20200629145649.exe

  • Size

    405KB

  • MD5

    d3cb26e444d6bdb1d2689230140dcaa7

  • SHA1

    dfe9d23f7f405fdc9f31868064fc62e4e00da8e4

  • SHA256

    84bc8c1924aa4ecff8cb642012b860201f8733b9e1f99b4c38a94911012f1b74

  • SHA512

    4985c567d73c37aab1447252c7e04104ef90fa2a4740c3bd04c1556758144e874984f36f3122cc6e71d06877b435afc8bddd592c0cfbe470d3a4bbad51c1119b

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.csair.us
  • Port:
    587
  • Username:
    customercare@csair.us
  • Password:
    AA&cz784

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SWIFT EUR 21924,74 20200629145649.exe
    "C:\Users\Admin\AppData\Local\Temp\SWIFT EUR 21924,74 20200629145649.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1356
    • C:\Users\Admin\AppData\Local\Temp\SWIFT EUR 21924,74 20200629145649.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1364
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1232

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    3
    T1081

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1232-4-0x0000000000000000-mapping.dmp
    • memory/1364-0-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

    • memory/1364-1-0x000000000044ACEE-mapping.dmp
    • memory/1364-2-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

    • memory/1364-3-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB