General

  • Target

    97eba6a6dbb27fce5939f175765c1e332faa78ffb62f8b922dabff1bd3711c2b

  • Size

    693KB

  • Sample

    220521-cyntpahgdp

  • MD5

    7854b11c3ce85eddbed329dcc36c7545

  • SHA1

    c8a52bd27a71647f81acceac2e85cb90819c3a34

  • SHA256

    97eba6a6dbb27fce5939f175765c1e332faa78ffb62f8b922dabff1bd3711c2b

  • SHA512

    9aa331eabf39a66ce1f1065a24c02d68eb18cc2500f631636f2539b9dbfae2f54858e0caf696a57ea9789f0d89f10450bed8ffd03af39845b9da00e9d6539291

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.catathai.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    CatathaiCatamaran

Targets

    • Target

      PAYMENT ADVISE_Pdf__________.exe

    • Size

      730KB

    • MD5

      a0146d201d817b776384020b0d167cb7

    • SHA1

      e925ab7118c2a4852cbe56323530a136a2adb010

    • SHA256

      fdd6a733c719e505650b9eebfe1511ec9e41db1a8b254ae09e2252ffd6a58333

    • SHA512

      f2fb658b204c9c61ef363683bc3e7935f8ff30878a2cfd0ab7990b7be0734d916284807e64fefb9ac2a0dfdde7e2a9ce41b559cdca223d7bc04569b648706cb2

    • AgentTesla

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

    • AgentTesla Payload

    • Checks computer location settings

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

    • 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 v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks