General

  • Target

    a3743e749149702f7f900b8c8e6d2c958a031e2ef3dbb90e249ee478f9ff4987

  • Size

    714KB

  • Sample

    220521-pt6j6agac4

  • MD5

    eea2c277ea745b7117e0ffbfdebbaa2d

  • SHA1

    f05d0f027054854429abf58727503a061d4b9417

  • SHA256

    a3743e749149702f7f900b8c8e6d2c958a031e2ef3dbb90e249ee478f9ff4987

  • SHA512

    7b7a865885e76c1284d2e8db60e8bd867f1f81c604a1f9af42fbedc88ff5250a904f46339f12189740296a0e41df97c9830f005366e3a776189d71a64af3d95f

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    faceoff123@yandex.com
  • Password:
    marcellinus

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    faceoff123@yandex.com
  • Password:
    marcellinus

Targets

    • Target

      Shipping Documents.exe

    • Size

      653KB

    • MD5

      89526331c66bd4f61edef9d86b6ee7a8

    • SHA1

      8978f2bfeffb823b4dd212de66af1012f2a4c97c

    • SHA256

      680cf4f20e454d2c8aec06f27a64477f48e3e316372b3c5b062dc64c1e524376

    • SHA512

      d98b7a0792a448fa54e67e938edac78efa04bd38e130c6a72a0bcaa82279dc086a970c545725c7909e19a2d4fd9634cd3904eb574d4ba13e277e61ca5da0a81d

    • AgentTesla

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

    • AgentTesla Payload

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • 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