General

  • Target

    04d8fd48d0eca936b08169690f737ae4_JaffaCakes118

  • Size

    747KB

  • Sample

    240328-nysneshd97

  • MD5

    04d8fd48d0eca936b08169690f737ae4

  • SHA1

    eb36cb2915046599ce1cb7337313f2acdc747446

  • SHA256

    e3a2a9b0894a857b48f6d913204d7dbdd9830f2675fda2c2e2f4ae96635a4b60

  • SHA512

    8091fc8ff5a01d3092ff87ca1a6296192e76572b2aeeba033e054393a6e5b8f14ee1ce025905063a2ed9610f5cbfbc12bf3046276154a8c5ef1a5f49e23fa9e4

  • SSDEEP

    12288:HAAoh08OGQuZLvqJFTPZ/dPsWPaCz+DnwKFKxBVM8LPztkf5D6a96SW3:XnGQYTq9ezCzWQfR/7

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    mighty.j0h@yandex.com
  • Password:
    Prince11

Targets

    • Target

      04d8fd48d0eca936b08169690f737ae4_JaffaCakes118

    • Size

      747KB

    • MD5

      04d8fd48d0eca936b08169690f737ae4

    • SHA1

      eb36cb2915046599ce1cb7337313f2acdc747446

    • SHA256

      e3a2a9b0894a857b48f6d913204d7dbdd9830f2675fda2c2e2f4ae96635a4b60

    • SHA512

      8091fc8ff5a01d3092ff87ca1a6296192e76572b2aeeba033e054393a6e5b8f14ee1ce025905063a2ed9610f5cbfbc12bf3046276154a8c5ef1a5f49e23fa9e4

    • SSDEEP

      12288:HAAoh08OGQuZLvqJFTPZ/dPsWPaCz+DnwKFKxBVM8LPztkf5D6a96SW3:XnGQYTq9ezCzWQfR/7

    • AgentTesla

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

    • AgentTesla payload

    • 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

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Tasks