General

  • Target

    a9cb0848c8d427303843f765c4e23941_JaffaCakes118

  • Size

    484KB

  • Sample

    240614-p67yravfrn

  • MD5

    a9cb0848c8d427303843f765c4e23941

  • SHA1

    18c776c7337936944d8470e1ff0951dfe44adb9e

  • SHA256

    585e236918df7adc691097379a07bebc24e2de0a4609c404af5b2705a2464eb8

  • SHA512

    027cf6a17b5b02063d9e96123d55d56572481c9f8460e7be139c055ddf5c0e3840cc0bde40bfc3a10e75d8ded4095d66a10e71dea504eaf9ea8a0f574a5240d2

  • SSDEEP

    6144:HQJp0XmU8AcS87ERBm5cWKfMNyACgWegVlFEApmxssqxnq6ZHA9/6FyEJLlO:H9XmzbERBwcphCWeYPmxcNHAWe

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.cathodicrne.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    qctkGJa4

Targets

    • Target

      a9cb0848c8d427303843f765c4e23941_JaffaCakes118

    • Size

      484KB

    • MD5

      a9cb0848c8d427303843f765c4e23941

    • SHA1

      18c776c7337936944d8470e1ff0951dfe44adb9e

    • SHA256

      585e236918df7adc691097379a07bebc24e2de0a4609c404af5b2705a2464eb8

    • SHA512

      027cf6a17b5b02063d9e96123d55d56572481c9f8460e7be139c055ddf5c0e3840cc0bde40bfc3a10e75d8ded4095d66a10e71dea504eaf9ea8a0f574a5240d2

    • SSDEEP

      6144:HQJp0XmU8AcS87ERBm5cWKfMNyACgWegVlFEApmxssqxnq6ZHA9/6FyEJLlO:H9XmzbERBwcphCWeYPmxcNHAWe

    • 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 WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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 v13

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

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

4
T1005

Email Collection

1
T1114

Tasks