General

  • Target

    SHIPPING ADV#202109.exe

  • Size

    810KB

  • Sample

    210915-jan8waaah8

  • MD5

    a44b879e71e23900ed597f6844319b2b

  • SHA1

    85c9f8e4d824ffa3f7ab89e60d374930516385e3

  • SHA256

    7b3fc292a6205855f1a48175af411180f33473bdaa343349563e089b18d9ebc9

  • SHA512

    a541cd4348de5e9a1737bc9dae4535bb5f3936abdd1235afe5c46cb81ea7d14e17c961fc8226a7e93a7acd2a4131b13a328b2578492d30a05c7f0b6ecad84f64

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.bsia.co.in
  • Port:
    587
  • Username:
    yogesh@bsia.co.in
  • Password:
    21mbsia@)@!Y

Targets

    • Target

      SHIPPING ADV#202109.exe

    • Size

      810KB

    • MD5

      a44b879e71e23900ed597f6844319b2b

    • SHA1

      85c9f8e4d824ffa3f7ab89e60d374930516385e3

    • SHA256

      7b3fc292a6205855f1a48175af411180f33473bdaa343349563e089b18d9ebc9

    • SHA512

      a541cd4348de5e9a1737bc9dae4535bb5f3936abdd1235afe5c46cb81ea7d14e17c961fc8226a7e93a7acd2a4131b13a328b2578492d30a05c7f0b6ecad84f64

    • AgentTesla

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

    • AgentTesla Payload

    • Looks for VirtualBox Guest Additions in registry

    • 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

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