Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    31-07-2020 10:14

General

  • Target

    Payment-Copy.exe

  • Size

    733KB

  • MD5

    de67a3a4fe2cfd212015b21591ca5e66

  • SHA1

    3ba1e4ffc548abdf9d1d271e7c32368411d2f877

  • SHA256

    3c84239cff22632c2ec3809490a5d558d526b70f6f18f051103404fa66f88113

  • SHA512

    a4971eb68bac9ec320e6e90e9ee8f2ed908b16251bf8e64fbf8bb840a24797ccba929ccb481ab02cf7df58998e2de72779b0773b13f4733b31e14db42b97b03d

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    chuk5anderson@yandex.ru
  • Password:
    chukwudi123

Signatures

  • 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 AdjustPrivilegeToken 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • AgentTesla Payload 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • AgentTesla

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment-Copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment-Copy.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:3748
    • C:\Users\Admin\AppData\Local\Temp\Payment-Copy.exe
      "{path}"
      2⤵
        PID:3832
      • C:\Users\Admin\AppData\Local\Temp\Payment-Copy.exe
        "{path}"
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious behavior: EnumeratesProcesses
        PID:3824

    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

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Payment-Copy.exe.log
    • memory/3824-0-0x0000000000400000-0x000000000044E000-memory.dmp
      Filesize

      312KB

    • memory/3824-1-0x0000000000449E3E-mapping.dmp