Resubmissions

Analysis

  • max time kernel
    140s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2024 18:33

General

  • Target

    PI.exe

  • Size

    607KB

  • MD5

    9c3b2089c30695a8a0c0eefad75974e8

  • SHA1

    8090d34f62d1070a44edbe650841faf7ea8de7b9

  • SHA256

    373c5a50e01d675cb64eae0351dd81abfcbcf65c0a23cc48019f202dadc78b23

  • SHA512

    166847ecd00d9e43e7d17a2bf8c2650a6e008c979faf6a82ec607b0ef9380e29cbb995f690128272336421e598aa0ccad70b7da12cf945d7fc5b5cc1cb9bf07f

  • SSDEEP

    12288:k0hv/Uo6PqcH94BhUXqv/E4niaRHUfXJGf7ZB5E5g0:BHUoSqY4BujojRiGVB5EK

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.polastarline.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    donblack12345

Signatures

  • AgentTesla

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

  • AgentTesla payload 6 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PI.exe
    "C:\Users\Admin\AppData\Local\Temp\PI.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2860
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nvtONyJYhBBlAS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp895B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2996
    • C:\Users\Admin\AppData\Local\Temp\PI.exe
      "C:\Users\Admin\AppData\Local\Temp\PI.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2556

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2556-25-0x00000000049B0000-0x00000000049F0000-memory.dmp
    Filesize

    256KB

  • memory/2556-12-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2556-18-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2556-15-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2556-28-0x00000000049B0000-0x00000000049F0000-memory.dmp
    Filesize

    256KB

  • memory/2556-27-0x00000000049B0000-0x00000000049F0000-memory.dmp
    Filesize

    256KB

  • memory/2556-26-0x0000000074B30000-0x000000007521E000-memory.dmp
    Filesize

    6.9MB

  • memory/2556-22-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2556-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2556-14-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2556-29-0x00000000049B0000-0x00000000049F0000-memory.dmp
    Filesize

    256KB

  • memory/2556-24-0x0000000074B30000-0x000000007521E000-memory.dmp
    Filesize

    6.9MB

  • memory/2556-13-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2556-20-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2860-6-0x0000000004B20000-0x0000000004B80000-memory.dmp
    Filesize

    384KB

  • memory/2860-0-0x0000000000B20000-0x0000000000BBE000-memory.dmp
    Filesize

    632KB

  • memory/2860-2-0x0000000004650000-0x0000000004690000-memory.dmp
    Filesize

    256KB

  • memory/2860-23-0x0000000074B30000-0x000000007521E000-memory.dmp
    Filesize

    6.9MB

  • memory/2860-1-0x0000000074B30000-0x000000007521E000-memory.dmp
    Filesize

    6.9MB

  • memory/2860-5-0x0000000004650000-0x0000000004690000-memory.dmp
    Filesize

    256KB

  • memory/2860-4-0x0000000074B30000-0x000000007521E000-memory.dmp
    Filesize

    6.9MB

  • memory/2860-3-0x00000000004A0000-0x00000000004B8000-memory.dmp
    Filesize

    96KB