General

  • Target

    Product list Tc Tradings.xlsx

  • Size

    369KB

  • Sample

    211021-gx7ydshhe7

  • MD5

    82499a429719b67772ab2e25c560a226

  • SHA1

    7cbbcf69fb796d54aebceaed86633ddb94ee28bd

  • SHA256

    a946c12c780ffb5e8cf5fcaa99256c9a5370e22534f64131db2027a648da524c

  • SHA512

    7f347da6ee328aabcb11b42524e93953aef5385632052220f2df04f8e8da13fe949d66db2ab6d6ee66026fc30be0e4bd27f5b702ecf45ded0c50856c62ad1514

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.croatiahunt.com
  • Port:
    587
  • Username:
    info@croatiahunt.com
  • Password:
    VilaVrgade852

Targets

    • Target

      Product list Tc Tradings.xlsx

    • Size

      369KB

    • MD5

      82499a429719b67772ab2e25c560a226

    • SHA1

      7cbbcf69fb796d54aebceaed86633ddb94ee28bd

    • SHA256

      a946c12c780ffb5e8cf5fcaa99256c9a5370e22534f64131db2027a648da524c

    • SHA512

      7f347da6ee328aabcb11b42524e93953aef5385632052220f2df04f8e8da13fe949d66db2ab6d6ee66026fc30be0e4bd27f5b702ecf45ded0c50856c62ad1514

    • AgentTesla

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

    • AgentTesla Payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Exploitation for Client Execution

1
T1203

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Scripting

1
T1064

Modify Registry

2
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks