Analysis

  • max time kernel
    143s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    09-07-2020 12:20

General

  • Target

    Payment Ref MT 103 #45980238001.exe

  • Size

    551KB

  • MD5

    4a529abd1165507b2d18064fa1f1769e

  • SHA1

    921df754e0ecd947b14a8b00af445ca566e6cd46

  • SHA256

    9169d246ccab4d7206fd3a6d294c628d1e9b8ed33329cc025170f546a7c5671e

  • SHA512

    9747c561bed5b2377a7596c7fe159d077143b40ecd8439d5af81d132cadfefd0b9cf7011941e271d6ccc7549e0379252ffcd91cb90d60aea8588934c2df2fe0b

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.chaikistomato.us
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    MNAKJus@1k2

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\Payment Ref MT 103 #45980238001.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Ref MT 103 #45980238001.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Users\Admin\AppData\Local\Temp\Payment Ref MT 103 #45980238001.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1508

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1508-2-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1508-3-0x0000000000446EBE-mapping.dmp

  • memory/1508-4-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1508-5-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1612-1-0x0000000000000000-0x0000000000000000-disk.dmp