General

  • Target

    7fd0b339ba2848308a68af071d8b825d10deda1a7da6c40329a79173ff86f4fc

  • Size

    432KB

  • Sample

    220521-bjndyaehhm

  • MD5

    c3c8a73b071e12ab091b5cba6f6368c4

  • SHA1

    48873f074c5f8fa66574f4068fbb9be4b4b30072

  • SHA256

    7fd0b339ba2848308a68af071d8b825d10deda1a7da6c40329a79173ff86f4fc

  • SHA512

    2141fdafc983b24b43aafc0b90985aab9048bad9c0ade613855ce087f5ef27901d7474038b1547f56ae69ead9cad314eb7405a48da2315477fbb44791b0ba11f

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    nnedimma080

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    nnedimma080

Targets

    • Target

      Rv Quotation_Request_Sheet.pdf.bat

    • Size

      654KB

    • MD5

      18eedad20bcf509f489bfca8831ab3bf

    • SHA1

      f3369a6864cf4f53376096c2faaebb8bda802126

    • SHA256

      b43942a6c8b89e2696abecd55fc787b54c53ae4fb89c7784b4c54cc5e99c30ef

    • SHA512

      10356dbc2ddc5b630142262e681792091eaae102c039eab67fbe707c429b6046a1e3bf12f92ebb2f22a5277a428e0a405b048ebafa735ff2ba909ff412d7299e

    • AgentTesla

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

    • AgentTesla Payload

    • Drops startup file

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks