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Analysis

  • max time kernel
    140s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    08/07/2020, 10:07

General

  • Target

    sssssssss.exe

  • Size

    700KB

  • MD5

    88eb02d25f5e8f949f9f0ae669066601

  • SHA1

    3ef5319771bbff0b02eb9c7b0a0f21c942282eb4

  • SHA256

    c75fa16118d5d921d598bd9ff539426dcfd7aece03815e5be6414763ba72bda6

  • SHA512

    24fb08840a13e9da79c212d75bb374a54413ffe8b44c8d48ee640df02084b5ca1bb39182a8cad5c5e5570194b366d0e9bf77e01d8ce2cecf6317c821ad28e3bf

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sensar-light.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chibuike12345@@@@@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\sssssssss.exe
    "C:\Users\Admin\AppData\Local\Temp\sssssssss.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Users\Admin\AppData\Local\Temp\sssssssss.exe
      "C:\Users\Admin\AppData\Local\Temp\sssssssss.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1432

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1432-0-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/1432-2-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/1432-3-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/1432-4-0x00000000002F0000-0x000000000033C000-memory.dmp

    Filesize

    304KB

  • memory/1432-5-0x0000000000242000-0x0000000000243000-memory.dmp

    Filesize

    4KB

  • memory/1432-6-0x0000000000250000-0x0000000000296000-memory.dmp

    Filesize

    280KB