Analysis

  • max time kernel
    140s
  • max time network
    142s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    31-07-2020 12:12

General

  • Target

    Image001.exe

  • Size

    765KB

  • MD5

    cbb4755899817e5408789fc7c3ae5979

  • SHA1

    e061fb307227f68bf9241a55ade9fa1976be5782

  • SHA256

    9f0c636096918ffd81f45e54f65d8992726cbfbef9a8d087476ab5360590d35d

  • SHA512

    2712bc7ff4eb3204d04fbfc033d3a2c1503662a1b73415ab1fefddbf3719337cbbd4d7857ff311a3db0e53ebfb2d7335ed11bc5f8183d260372080761ab43f36

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    ikpc5@yandex.com
  • Password:
    afoerinwa123456789

Signatures

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • AgentTesla

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • AgentTesla Payload 5 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Suspicious use of WriteProcessMemory 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • UPX packed file 6 IoCs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Image001.exe
    "C:\Users\Admin\AppData\Local\Temp\Image001.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3496
    • C:\Users\Admin\AppData\Local\Temp\Image001.exe
      "C:\Users\Admin\AppData\Local\Temp\Image001.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3216

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/3216-0-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/3216-1-0x00000000004A2490-mapping.dmp
  • memory/3216-2-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/3216-3-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/3216-4-0x0000000002170000-0x00000000021BC000-memory.dmp
    Filesize

    304KB

  • memory/3216-5-0x0000000002212000-0x0000000002213000-memory.dmp
    Filesize

    4KB