Analysis

  • max time kernel
    126s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    10-07-2020 05:54

General

  • Target

    Scan copy.exe

  • Size

    805KB

  • MD5

    0490849f0d0e983324374d36ba97591a

  • SHA1

    4a5d478356cddf7b2117fc9b8bf894e98fbd602e

  • SHA256

    9a63f91e52508b6a45b057bc3d6bfe71a76937316d65f65e6d49b765bf8e1392

  • SHA512

    f05cf99affa1852e20551e2d2427b2dd564b056f03825a910ee69c36ec4a76f49ed22646fbf288fc5a2e589b1091cc42781db46f2fce04b30addd842bd855b9f

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Simple262627

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 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 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Scan copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Scan copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Users\Admin\AppData\Local\Temp\Scan copy.exe
      "C:\Users\Admin\AppData\Local\Temp\Scan copy.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1720

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1720-0-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/1720-1-0x00000000004A3910-mapping.dmp

  • memory/1720-2-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/1720-3-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/1720-4-0x00000000009E0000-0x0000000000A2C000-memory.dmp

    Filesize

    304KB

  • memory/1720-5-0x0000000002392000-0x0000000002393000-memory.dmp

    Filesize

    4KB