General

  • Target

    d3000666c867548ae8d54d6d8a1b8839b63f3472985dd6e10972fea635f33377

  • Size

    658KB

  • Sample

    241122-b182zaxpbp

  • MD5

    7fb50853655dcc838bc91505b98fdea2

  • SHA1

    9370b81b8b89f165cc46be52fba2a055136676e8

  • SHA256

    d3000666c867548ae8d54d6d8a1b8839b63f3472985dd6e10972fea635f33377

  • SHA512

    7bac62c970459fb2fc30c4324bfa724303c646427287a977c19c6eda86e4f4793572c7855e570f557ae92db4ef43932d132a11d947f0e26e59095f5b16cb6bc7

  • SSDEEP

    12288:DRlmthfpjQVhbLoWgLglLrHFMek5DBu+C7ynsoOCU2+F6z1+zPEKtmRoBK6FfTl:DRsHpja1ogvlRMD3OCUvFrzsjRoBXfZ

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.normagroup.com.tr
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    Qb.X[.j.Yfm[

Targets

    • Target

      CN-Statement of Accounts and ETax-OB-XXXXX6856-03012824201808803.exe

    • Size

      954KB

    • MD5

      23f897e47d52c7dc3edb5c1940fff117

    • SHA1

      4698094f14bb757fb97cd929219a1be5b964e1d1

    • SHA256

      65aeb80fc40d54a4d91ca9b6f5891e82430c90e400f77419bc6ddd2805e6812f

    • SHA512

      9cb32ef1166956e55eeb2faed128be82ed9bf54b3fabc0f630b00cb8ee0a74809424dd15663dacfedadbe2d30a9e2cb4b35fffab0cc4b5dfd5fa264617b1e048

    • SSDEEP

      24576:kMxEE1zRlzxW/ZzM2mDpTCqtCNzb7nVL:1zRnW1M2mDsqtCB7nN

    • AgentTesla

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

    • Agenttesla family

    • Command and Scripting Interpreter: PowerShell

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

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks