Analysis

  • max time kernel
    93s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    09/07/2020, 12:15

General

  • Target

    Invoice.exe

  • Size

    533KB

  • MD5

    676213812fcd942f150519418bad81f0

  • SHA1

    63c6513df8879238baef6869bd2c2c5324626337

  • SHA256

    c8f62dda091a29ed35c26e212840d0c260c9f420f5a7940b2b1f088ad10a3c2d

  • SHA512

    945e542fc9dca0dc00f342749fd4662fadf68b2284b8955211771f8a4d2bf897e12ee10fe9435b57bdd757aa954a239ed0f42d5e787f827113e69f825262b730

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.visgring.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    uqtQpAv1

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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1500
    • C:\Users\Admin\AppData\Local\Temp\Invoice.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1860

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1860-2-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1860-4-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1860-5-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB