General

  • Target

    e57ed966e53a6a91b23d61efa9bfe3e2_JaffaCakes118

  • Size

    533KB

  • Sample

    240407-v83ppsaa7y

  • MD5

    e57ed966e53a6a91b23d61efa9bfe3e2

  • SHA1

    225c61a53e9ec4564d6472ee586bce1430939de2

  • SHA256

    66187a58362ee5d1b8b09e124f9abaa8bd97da3039028ec19269d3d042fbdf9a

  • SHA512

    4ee4fce443c76e0da6a1da7a02508a7402236a7c334f606e57a9551b5399df59653123954a17dff65c23c4d5834eb93e4582832f216d88b9d4573bf101f9a4a2

  • SSDEEP

    12288:HavRGPf9NGxWooQmRY0lyhFurIv0eqY3jn9Y9IRndYmw:sRG22WurI8ejS

Malware Config

Extracted

Family

agenttesla

Credentials

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

Targets

    • Target

      e57ed966e53a6a91b23d61efa9bfe3e2_JaffaCakes118

    • Size

      533KB

    • MD5

      e57ed966e53a6a91b23d61efa9bfe3e2

    • SHA1

      225c61a53e9ec4564d6472ee586bce1430939de2

    • SHA256

      66187a58362ee5d1b8b09e124f9abaa8bd97da3039028ec19269d3d042fbdf9a

    • SHA512

      4ee4fce443c76e0da6a1da7a02508a7402236a7c334f606e57a9551b5399df59653123954a17dff65c23c4d5834eb93e4582832f216d88b9d4573bf101f9a4a2

    • SSDEEP

      12288:HavRGPf9NGxWooQmRY0lyhFurIv0eqY3jn9Y9IRndYmw:sRG22WurI8ejS

    • AgentTesla

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

    • AgentTesla payload

    • Looks for VirtualBox Guest Additions in registry

    • 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.

    • 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