Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    12-07-2020 08:06

General

  • Target

    REV- PI 1696195.exe

  • Size

    392KB

  • MD5

    3c0946462f437b2d9b899bc140bfaff1

  • SHA1

    f89981b931c60a201deae175b6515491e5301716

  • SHA256

    8184f5c076e0843551942cca6c5f1dbc72ddb32d1fe9d4b415eccca59651060d

  • SHA512

    8e8a464017fa68594ad473b7117d3ed128d4ea08bfcdab5b394d7dbd220481b0d67cbbc7fb692796c6653a5780917ce0e0b3da57bb3e0c7d752ac8d0c31cfe4d

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.usamilitarydept.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    qqkgpIN2

Signatures

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\REV- PI 1696195.exe
    "C:\Users\Admin\AppData\Local\Temp\REV- PI 1696195.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2948
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cyvKiQyyTFW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp91CB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3512
    • C:\Users\Admin\AppData\Local\Temp\REV- PI 1696195.exe
      "{path}"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      PID:1852
  • C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
    C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
    1⤵
      PID:3224

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    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\REV- PI 1696195.exe.log
    • C:\Users\Admin\AppData\Local\Temp\tmp91CB.tmp
    • memory/1852-2-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

    • memory/1852-3-0x00000000004471FE-mapping.dmp
    • memory/3512-0-0x0000000000000000-mapping.dmp