General

  • Target

    1191d3f484d35c7e4d42ac7bcdd2227930f848383873d914e8010bfe637e0122.exe

  • Size

    681KB

  • Sample

    240604-bd3lnsff5x

  • MD5

    a745a3b88dc871f9b23f5f6b1e84e51e

  • SHA1

    e24bc7db313279667cb17da86e0b7b5e138cbd7b

  • SHA256

    1191d3f484d35c7e4d42ac7bcdd2227930f848383873d914e8010bfe637e0122

  • SHA512

    a9b2507bc4850920a8e1253db8f639fe07256344c7cd90307a2828c17cf6123534d6f1b744bb4fa213ad4bae01cecb374eb7a509b1c485631acd6debdfb4c382

  • SSDEEP

    12288:u4fU9WeLAf2du+ufKAkeLZSWqnQDD4dat9Y62I/yYSBvJkuouf1Qf:XU9W5nnf1keQrnkj9YwXSBvJkoQ

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://cash4cars.nz
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    -[([pqM~nGA4

Targets

    • Target

      1191d3f484d35c7e4d42ac7bcdd2227930f848383873d914e8010bfe637e0122.exe

    • Size

      681KB

    • MD5

      a745a3b88dc871f9b23f5f6b1e84e51e

    • SHA1

      e24bc7db313279667cb17da86e0b7b5e138cbd7b

    • SHA256

      1191d3f484d35c7e4d42ac7bcdd2227930f848383873d914e8010bfe637e0122

    • SHA512

      a9b2507bc4850920a8e1253db8f639fe07256344c7cd90307a2828c17cf6123534d6f1b744bb4fa213ad4bae01cecb374eb7a509b1c485631acd6debdfb4c382

    • SSDEEP

      12288:u4fU9WeLAf2du+ufKAkeLZSWqnQDD4dat9Y62I/yYSBvJkuouf1Qf:XU9W5nnf1keQrnkj9YwXSBvJkoQ

    • AgentTesla

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

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables packed with SmartAssembly

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • 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.

    • 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 Enterprise v15

Tasks