General

  • Target

    5e36e0d8183dc5620f5f21b9192e4bd359fa03169e429ed4b569a603b85e921c

  • Size

    376KB

  • Sample

    220521-demyqaafcr

  • MD5

    808e5d51169a66f70dd52a9f8f3a06c5

  • SHA1

    5394f335eca309609c9993a795ccd3eb5fce9c52

  • SHA256

    5e36e0d8183dc5620f5f21b9192e4bd359fa03169e429ed4b569a603b85e921c

  • SHA512

    5b174adc6c2c967bb5ed8d5ccefdaa725a1cab4730d80f2a821f21511eb31ba81795573177d50b328926584f24a71c7131143de9185d047ac25b3259afcd4fcd

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    1xH}wgu7}f%E

Targets

    • Target

      revised PI.exe

    • Size

      390KB

    • MD5

      3194620f4034331c79d5d0dfc6023776

    • SHA1

      6f8d397158da9347587bccfb356af3def94ef892

    • SHA256

      eafe80f90a3a9a02cea6165309b01aab3ab9b7eab9401342b665e8fdefc65869

    • SHA512

      3c88c05602d5c82a37c1447db0fe9e08719e399fc2a9d1f29e3838114f4a35824b30c7467ff54144d7a19b7c69d56f2140a67a373594698b86a73317733ecab5

    • 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.

    • Accesses Microsoft Outlook profiles

    • 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

Email Collection

1
T1114

Tasks