Analysis

  • max time kernel
    111s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 02:34

General

  • Target

    Payment_Copy.PDF.exe

  • Size

    603KB

  • MD5

    6f4ff4d406d6917c9261333ed9bbc58c

  • SHA1

    9ab4630d7a4323ab119535990b008130890d178c

  • SHA256

    190be18ceb220a947bf797e07e27b41987d707f00ce1774e05998a6682482f43

  • SHA512

    7a388d5f6fd968fac1cd31f4c48b7eaa140986bab705c1694c2390072eda4995095ee2ead609c4e995a92c3913c6a3eb22205db80998ab12b8dfb9c6a22afd12

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    killdemall007

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    killdemall007

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment_Copy.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment_Copy.PDF.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4212
    • C:\Users\Admin\AppData\Local\Temp\Payment_Copy.PDF.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1352
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:4496

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Payment_Copy.PDF.exe.log

      Filesize

      588B

      MD5

      d27c74bb229330941babff7e7f8230ca

      SHA1

      d19d6c501c855bc32868f7bd2331aeed6adc87af

      SHA256

      387557e9a22579e059f91a5c9d506f5c2c7477d4fcd0df6a03898538b7cd0bf1

      SHA512

      162ef27fa9ced2c1dbd40e98af4fcbff0dcd2ecf4c6d8fc6aca6ebbfb891016846ffe47bb7a8d02222cf86abdfa11c230a59025c51797ed2cbe63b5dcc497c89

    • memory/1352-131-0x0000000000000000-mapping.dmp

    • memory/1352-132-0x0000000000400000-0x0000000000452000-memory.dmp

      Filesize

      328KB

    • memory/1352-134-0x0000000074FD0000-0x0000000075581000-memory.dmp

      Filesize

      5.7MB

    • memory/4212-130-0x0000000074FD0000-0x0000000075581000-memory.dmp

      Filesize

      5.7MB

    • memory/4496-135-0x0000000000000000-mapping.dmp