General

  • Target

    84ef7e5bb491a8cd5c82167fc5cf1638ac9df32093e7d79584267d12531acf17

  • Size

    840KB

  • Sample

    240523-cfyk6shh74

  • MD5

    306137f1423d375c44c975513f8efed5

  • SHA1

    46087d761947dd29ef18ecfd262512cf2d6482d1

  • SHA256

    84ef7e5bb491a8cd5c82167fc5cf1638ac9df32093e7d79584267d12531acf17

  • SHA512

    0a5095e24431290806d34e40d213b87dd2a6904b6d3f87e2dbc3cfddf300be7233476d370c2930f2834e99cc5710ebcc0ba5f4345edc0590b3c87d9c8540b9bb

  • SSDEEP

    12288:vb+x504bFtx504bFWxV6w1P7F4Uf3gK77GM1hZQHGM8XxSiMhWtHI92D/T01b9ph:z+w4bjw4buPxfPGMn1YhkADC09Y97

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      84ef7e5bb491a8cd5c82167fc5cf1638ac9df32093e7d79584267d12531acf17

    • Size

      840KB

    • MD5

      306137f1423d375c44c975513f8efed5

    • SHA1

      46087d761947dd29ef18ecfd262512cf2d6482d1

    • SHA256

      84ef7e5bb491a8cd5c82167fc5cf1638ac9df32093e7d79584267d12531acf17

    • SHA512

      0a5095e24431290806d34e40d213b87dd2a6904b6d3f87e2dbc3cfddf300be7233476d370c2930f2834e99cc5710ebcc0ba5f4345edc0590b3c87d9c8540b9bb

    • SSDEEP

      12288:vb+x504bFtx504bFWxV6w1P7F4Uf3gK77GM1hZQHGM8XxSiMhWtHI92D/T01b9ph:z+w4bjw4buPxfPGMn1YhkADC09Y97

    • AgentTesla

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

    • 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.

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • 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

Tasks