Analysis

  • max time kernel
    139s
  • max time network
    142s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    13-07-2020 11:19

General

  • Target

    Ref scan_07_020.exe

  • Size

    933KB

  • MD5

    36d9a9a7eb556afd4cd1e68dfb408d57

  • SHA1

    c66c2ae7e13d7690e2e9ab9d3eb44dc3085def77

  • SHA256

    a7a7aab77c51aa47002d095884315b579779d134a893ec6270b4e2ea83bfc921

  • SHA512

    f33b952512ae96788bb7af3eb495d435a4ec5ee63da6c7fca62ebf4862287f82a5f7685244b665ad303cb901ba84140130d9f96b6788cf5c999d276d8482665c

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Godwin@1234

Signatures

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • UPX packed file 3 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • AgentTesla

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

  • 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ref scan_07_020.exe
    "C:\Users\Admin\AppData\Local\Temp\Ref scan_07_020.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:3544
    • C:\Users\Admin\AppData\Local\Temp\Ref scan_07_020.exe
      "C:\Users\Admin\AppData\Local\Temp\Ref scan_07_020.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3028

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3028-1-0x00000000004A2650-mapping.dmp

  • memory/3028-0-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/3028-2-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/3028-3-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/3028-4-0x00000000021B0000-0x00000000021FC000-memory.dmp

    Filesize

    304KB

  • memory/3028-5-0x00000000021A2000-0x00000000021A3000-memory.dmp

    Filesize

    4KB