Analysis

  • max time kernel
    104s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2022 16:35

General

  • Target

    SecuriteInfo.com.Variant.Strictor.276038.6712.23165.exe

  • Size

    48KB

  • MD5

    1476bec554a2de94d19c44ce3ed8fff5

  • SHA1

    ce5741dda34d3133707a85ade30aaf1bfd133dad

  • SHA256

    3a940b88c6cc22f5051a10c4b437cfb72aa9aad9e0bcb15c18a83116e80739d4

  • SHA512

    fe696c0fa17b9fcc7cdc2aba05516b8a93955366fa151ac4b5c06c2d3bdcc7b2cdfd6528c63cc8b7f139c64561cbecc1f381ef14c97872c701c633ebb5878f76

  • SSDEEP

    384:oTJU0v4hw2lG8tUHHojSeOiV9qXBKmFptYcFmVc03K:oTYdlGFHHfXtYcFmVc6K

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5764062937:AAHmiesTr6Z7n5aCQmZlon17u47KFOBnTT8/

Signatures

  • AgentTesla

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

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Strictor.276038.6712.23165.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Strictor.276038.6712.23165.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:1612
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:940

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/940-57-0x0000000000000000-mapping.dmp
  • memory/940-59-0x000000006E660000-0x000000006EC0B000-memory.dmp
    Filesize

    5.7MB

  • memory/940-60-0x000000006E660000-0x000000006EC0B000-memory.dmp
    Filesize

    5.7MB

  • memory/940-61-0x000000006E660000-0x000000006EC0B000-memory.dmp
    Filesize

    5.7MB

  • memory/1612-54-0x0000000000F80000-0x0000000000F92000-memory.dmp
    Filesize

    72KB

  • memory/1612-55-0x0000000076681000-0x0000000076683000-memory.dmp
    Filesize

    8KB

  • memory/1612-56-0x00000000059D0000-0x0000000005BEA000-memory.dmp
    Filesize

    2.1MB

  • memory/1612-62-0x00000000052C0000-0x00000000052F8000-memory.dmp
    Filesize

    224KB