General

  • Target

    9b66a7f79339ca7375e318f49fabe95f816c6d1732071f3058bd30ae06392f1f

  • Size

    1.8MB

  • Sample

    250114-b8mtpswjdp

  • MD5

    d463b42ea1b71e63158b689c015740cb

  • SHA1

    164651c06799cb271b6580a55f0a7f44308efb02

  • SHA256

    9b66a7f79339ca7375e318f49fabe95f816c6d1732071f3058bd30ae06392f1f

  • SHA512

    c5c4e1ebbe191f9a9b945f7670e1fb7183e15bb4c3a8d14bd3f53ebba9b2703462e6cc99fa06e9dc128b47da2c6dd2ba51586649693e954c067949e34ad293e2

  • SSDEEP

    49152:M/yK8uOOOgFLEO71Qf6rIykCBvGa5OOjLoyEkmZ9Y14:MUuOOOq7K9ylNGsO1A

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.valtronics-ae.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    YTMIlIR0

Targets

    • Target

      9b66a7f79339ca7375e318f49fabe95f816c6d1732071f3058bd30ae06392f1f

    • Size

      1.8MB

    • MD5

      d463b42ea1b71e63158b689c015740cb

    • SHA1

      164651c06799cb271b6580a55f0a7f44308efb02

    • SHA256

      9b66a7f79339ca7375e318f49fabe95f816c6d1732071f3058bd30ae06392f1f

    • SHA512

      c5c4e1ebbe191f9a9b945f7670e1fb7183e15bb4c3a8d14bd3f53ebba9b2703462e6cc99fa06e9dc128b47da2c6dd2ba51586649693e954c067949e34ad293e2

    • SSDEEP

      49152:M/yK8uOOOgFLEO71Qf6rIykCBvGa5OOjLoyEkmZ9Y14:MUuOOOq7K9ylNGsO1A

    • 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 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

    • 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