General

  • Target

    d8453b3e4363f9154458b927cdf398ce8f792a61cd0eaa387a535802bff24179

  • Size

    595KB

  • Sample

    220520-17zjjsegg6

  • MD5

    e186dece8061c1e9f143a738a926392c

  • SHA1

    4a1e22d3b10de2f50050854182a09c9f0d38ace3

  • SHA256

    d8453b3e4363f9154458b927cdf398ce8f792a61cd0eaa387a535802bff24179

  • SHA512

    b6371aa579f92ca8f65c644e39397e7a9067e62a68b1a050b23b04cdf157d7efed5f5b54e32e5f3754a741640ae318dd5ee591822ca51e84d501c596043e5ee8

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    K$pbkEK0

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    K$pbkEK0

Targets

    • Target

      Transfer Confirmation.exe

    • Size

      617KB

    • MD5

      4933039c07233e307f6a8ee44229f81b

    • SHA1

      e0f164c88ead46da499516596adb16bde31b3243

    • SHA256

      1c8ee9c80b54c9a2f245d2e98ce8d25702becbc6584135c4278169d406016dd8

    • SHA512

      6072234ed2ee6c19e45ccc61dc52e730cbfd568a78ad2e11eae4714c34e95894b8fe93eabcb8c2ad1cc1e3b45a5e0326d393418dce0df7c39b4baa0289a94d7c

    • AgentTesla

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

    • AgentTesla Payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks