Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    10-07-2020 06:57

General

  • Target

    Payment Confirmation.exe

  • Size

    802KB

  • MD5

    eab784731e9e99ee215c2741651d1b92

  • SHA1

    691773b52b53a555d09378e02d38bf710c045204

  • SHA256

    3cccff9a1654ffd65017b4264a450e2c1198275dd84050139794488778bd7961

  • SHA512

    83130d6dfe9cba9b415601c8d50606f807ff1c2e2b8761bf6c3279e4cd14472e2776e1e68fa83b474e45e076cc14a7acc60202e91791acb4d6d540ee0c5d0173

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Blessing123

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\Payment Confirmation.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1740

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1740-0-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/1740-2-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/1740-3-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/1740-4-0x0000000002180000-0x00000000021CC000-memory.dmp

    Filesize

    304KB

  • memory/1740-5-0x0000000002232000-0x0000000002233000-memory.dmp

    Filesize

    4KB