General

  • Target

    IMG 24062020PDF.exe

  • Size

    443KB

  • Sample

    200624-lbl3rx97za

  • MD5

    20c7a0377611958b37348cd03f7e0c3f

  • SHA1

    d258d88e6525b4b332969f7c861896c1c1f08582

  • SHA256

    3435125a8f088487cba76172fe20bdb586112bfa4ab5d8d3770dbc07d092a158

  • SHA512

    3d2e29b4763762a48aa683a152e6591b5e6edb984ac9260b49bf79b600c6470d94ec1b170947a087825401be70ddf12a56d7569a53b03bb6a4a76b639929b9ee

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.mado.com.tr
  • Port:
    587
  • Username:
    muhasebe@mado.com.tr
  • Password:
    Muharrem2023++

Targets

    • Target

      IMG 24062020PDF.exe

    • Size

      443KB

    • MD5

      20c7a0377611958b37348cd03f7e0c3f

    • SHA1

      d258d88e6525b4b332969f7c861896c1c1f08582

    • SHA256

      3435125a8f088487cba76172fe20bdb586112bfa4ab5d8d3770dbc07d092a158

    • SHA512

      3d2e29b4763762a48aa683a152e6591b5e6edb984ac9260b49bf79b600c6470d94ec1b170947a087825401be70ddf12a56d7569a53b03bb6a4a76b639929b9ee

    • AgentTesla

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

    • AgentTesla Payload

    • Looks for VirtualBox Guest Additions in registry

    • Drops file in Drivers directory

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Tasks