Analysis

  • max time kernel
    132s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    20-10-2021 21:27

General

  • Target

    Payment Advice.exe

  • Size

    597KB

  • MD5

    91abc47e7bb4110eea539082f7cc5559

  • SHA1

    034b17319ec75aed6e6becad1a7efa8f9374228f

  • SHA256

    b5424ff763ec9e9cb9389c81087597201a36c999f7c2dc80be51b92ce17add06

  • SHA512

    7ca52acf1228c91205ade4a8efe24e1c04d11e53bb460334b1e8dbcbfda3c10f7bf594d6ce8a423c1d47d6eaca3bc0f621d386e19cbdc0c84f66f24bdc59ad96

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    !xgapua3

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1768
    • C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:568

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/568-63-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/568-62-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/568-68-0x0000000004A61000-0x0000000004A62000-memory.dmp
    Filesize

    4KB

  • memory/568-67-0x0000000004A60000-0x0000000004A61000-memory.dmp
    Filesize

    4KB

  • memory/568-65-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/568-59-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/568-61-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/568-60-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/568-64-0x00000000004375EE-mapping.dmp
  • memory/1768-53-0x0000000000820000-0x0000000000821000-memory.dmp
    Filesize

    4KB

  • memory/1768-55-0x0000000075821000-0x0000000075823000-memory.dmp
    Filesize

    8KB

  • memory/1768-58-0x0000000004F70000-0x0000000004FC8000-memory.dmp
    Filesize

    352KB

  • memory/1768-57-0x0000000000510000-0x0000000000517000-memory.dmp
    Filesize

    28KB

  • memory/1768-56-0x00000000003B0000-0x00000000003B1000-memory.dmp
    Filesize

    4KB