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General

  • Target

    56a1e18a188402f229f64dfa5078e90e2f1845b2862504d0e7b209bb0578f498

  • Size

    537KB

  • Sample

    241125-blrt5swkbp

  • MD5

    41c493db90654f1023942e02a66ffd40

  • SHA1

    d862de6446a813a842cf62a7b520832504776bea

  • SHA256

    56a1e18a188402f229f64dfa5078e90e2f1845b2862504d0e7b209bb0578f498

  • SHA512

    c3d2f2b026dce55c12efd0be35906b6db4da48b75a996c4e2c6734524cbfc7ba960ce43285e959140e7f4d0d99823be2406f4878671188d6e44d9c2c9a7121e3

  • SSDEEP

    12288:MIc/zMh+Lv+Jiw/Ij2pEL+I3BwBICN2HhhY:Mj/oh+D+0we2pELFuZNAhhY

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    webmail.karanex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Oi&-tmhj@d5v

Targets

    • Target

      56a1e18a188402f229f64dfa5078e90e2f1845b2862504d0e7b209bb0578f498

    • Size

      537KB

    • MD5

      41c493db90654f1023942e02a66ffd40

    • SHA1

      d862de6446a813a842cf62a7b520832504776bea

    • SHA256

      56a1e18a188402f229f64dfa5078e90e2f1845b2862504d0e7b209bb0578f498

    • SHA512

      c3d2f2b026dce55c12efd0be35906b6db4da48b75a996c4e2c6734524cbfc7ba960ce43285e959140e7f4d0d99823be2406f4878671188d6e44d9c2c9a7121e3

    • SSDEEP

      12288:MIc/zMh+Lv+Jiw/Ij2pEL+I3BwBICN2HhhY:Mj/oh+D+0we2pELFuZNAhhY

    • AgentTesla

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

    • Agenttesla family

    • AgentTesla payload

    • Looks for VirtualBox Guest Additions in registry

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks