General

  • Target

    974ffbcc0cdba0f379766b343276d721e4093135923c8fa0068d129c0685a69b.zip

  • Size

    1.3MB

  • Sample

    240523-b7pxnshc3s

  • MD5

    44cc138e2a41708a4cbfad61193873cf

  • SHA1

    93d96e5110224850a0f51152bb4e29c9eee06fc6

  • SHA256

    974ffbcc0cdba0f379766b343276d721e4093135923c8fa0068d129c0685a69b

  • SHA512

    78c32cc3c2fdf185890339bb23a40b3ab72a4528cc081e1e6564c238e7b1f7362286a4380635ef6fe3d755c9912db901ed3cae3502a51425efeac3f10e591a93

  • SSDEEP

    24576:ZIe9Usds9wAK/vQeiXZx6iKKEq/WWsnW/KtZ31V9PBSutLFcY/C4S7ZvC:ZIpsowAK/vXU6BkZ0WYZ31jPdtZsZZvC

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      TEKLİF TALEP VE FİYAT TEKLİFİ‮s؜x؜l؜x؜..exe

    • Size

      2.5MB

    • MD5

      943b8ec27c9e3997239b317f081ec3e4

    • SHA1

      c5d9639dfbda1c3fec0f7e7ff9c27790074c0009

    • SHA256

      09ec4ca4e05a633b0a8114607cc08fd062348051d17f745d483cc3646279722b

    • SHA512

      7eaf696ca9448de6363903749ef5d3fdb396190b656e8e87f4874a2a00ad19cd5725b072e1514dd90c4ff73eea590629b4e82b5fc084233aba4c44fbde7db490

    • SSDEEP

      49152:ZP6hSrcCPT0J5Lg31+mYGnKDkTXzTnSPb:iujmmYGnKDkTzTno

    • 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 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.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks