General

  • Target

    69d3dca3fd5e0029d8ef14cf8d8a8d6f_JaffaCakes118

  • Size

    596KB

  • Sample

    240523-fre5raef84

  • MD5

    69d3dca3fd5e0029d8ef14cf8d8a8d6f

  • SHA1

    f47be66bedb746d520d62e33c548fbecd345d9da

  • SHA256

    ecd02b07f2d16323eb97c26de4ed644479f33bd6c20fe4b554cff7ef1b62c300

  • SHA512

    091721779e594f4f3f15c87be1941906ca724685081c1b9f1bf22e2392ce7ac93113580b11549eadf697bbc55a3d74f73d0837349e6845a3f0c67c82197aeaf9

  • SSDEEP

    12288:FC5yJ/SEZQ84s0It1BILhwR7+W1Fqns0wITupgcKdca:J/S4N1BkhU1ennwITbdca

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.vasudeva.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    fK;Ham+t#DpR;T?jQ;

Targets

    • Target

      69d3dca3fd5e0029d8ef14cf8d8a8d6f_JaffaCakes118

    • Size

      596KB

    • MD5

      69d3dca3fd5e0029d8ef14cf8d8a8d6f

    • SHA1

      f47be66bedb746d520d62e33c548fbecd345d9da

    • SHA256

      ecd02b07f2d16323eb97c26de4ed644479f33bd6c20fe4b554cff7ef1b62c300

    • SHA512

      091721779e594f4f3f15c87be1941906ca724685081c1b9f1bf22e2392ce7ac93113580b11549eadf697bbc55a3d74f73d0837349e6845a3f0c67c82197aeaf9

    • SSDEEP

      12288:FC5yJ/SEZQ84s0It1BILhwR7+W1Fqns0wITupgcKdca:J/S4N1BkhU1ennwITbdca

    • AgentTesla

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

    • AgentTesla payload

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • 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

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Tasks