Analysis

  • max time kernel
    163s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    27-09-2021 00:41

General

  • Target

    purchase order.exe

  • Size

    1.5MB

  • MD5

    0ecd4e2b8c8b2ed0547486adae4bea38

  • SHA1

    fe27a8b65b5124034b6928cc4b62ccc543d181c9

  • SHA256

    121ed7866968457d069a87e8f3bf56fd8313a61949414bfc1fd2da89fa0c572c

  • SHA512

    27e13285514640cbb63195e22489b1f5bd1e6f129ff0966fd5ae6f444984fb68d644fb983cc8c37953d0c04a1d1ec90d78d130ed40360d6e9dd48bab6ba06044

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ananthasuites.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Anantha225@#

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\purchase order.exe
    "C:\Users\Admin\AppData\Local\Temp\purchase order.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Users\Admin\AppData\Local\Temp\purchase order.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:952

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/952-59-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/952-60-0x00000000004374BE-mapping.dmp

  • memory/952-61-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/952-63-0x0000000000460000-0x0000000000461000-memory.dmp

    Filesize

    4KB

  • memory/952-64-0x0000000000461000-0x0000000000462000-memory.dmp

    Filesize

    4KB

  • memory/2036-53-0x0000000000C30000-0x0000000000C31000-memory.dmp

    Filesize

    4KB

  • memory/2036-55-0x0000000004AD0000-0x0000000004AD1000-memory.dmp

    Filesize

    4KB

  • memory/2036-56-0x0000000000200000-0x000000000020E000-memory.dmp

    Filesize

    56KB

  • memory/2036-57-0x0000000005E80000-0x0000000005EF9000-memory.dmp

    Filesize

    484KB

  • memory/2036-58-0x00000000021C0000-0x00000000021F8000-memory.dmp

    Filesize

    224KB