Analysis

  • max time kernel
    53s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 03:40

General

  • Target

    0900009900pdf.exe

  • Size

    539KB

  • MD5

    ff69f59ae77ee39cafdb4e7efb4accd7

  • SHA1

    998f7ed69e24b27371151aeb3d953643c8566878

  • SHA256

    ed1aa53c89a6250abd5ec84f8458338150b89ba617d4ca9b8d1583658a2b44ef

  • SHA512

    a457ce644c81831d757c7737364a22291c7db2194f457ea92f9de6a9560e25d12e9164b94dbd8b4048b7ed65d122b55944ce6212fb1f12d1ccb5c00693487b27

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chukwudi123

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 IoCs
  • 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0900009900pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\0900009900pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Users\Admin\AppData\Local\Temp\0900009900pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\0900009900pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1932

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/632-54-0x0000000075391000-0x0000000075393000-memory.dmp
    Filesize

    8KB

  • memory/632-55-0x0000000074AD0000-0x000000007507B000-memory.dmp
    Filesize

    5.7MB

  • memory/1932-56-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1932-57-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1932-59-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1932-60-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1932-61-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1932-62-0x0000000000449E3E-mapping.dmp
  • memory/1932-64-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1932-66-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1932-68-0x0000000074AD0000-0x000000007507B000-memory.dmp
    Filesize

    5.7MB