General

  • Target

    6cd70c89e9f2389550319a3e9c6d772423934f071c69afbd9ce007d4e68b112a.exe

  • Size

    650KB

  • Sample

    240405-bsat7sgh99

  • MD5

    b3927e806d2e48118874fc3e5d9e3468

  • SHA1

    2eb24cb00e1dd2ec9f061b68595c0df695658fe9

  • SHA256

    6cd70c89e9f2389550319a3e9c6d772423934f071c69afbd9ce007d4e68b112a

  • SHA512

    530ec6396a242a462c9b4a1db02b2a3263caae4d3541419c237313610cb56ba811f5b4c3fd8b5c7f7976f8a53124504e95037166cf3a5bcc4b42cb0ff85bf743

  • SSDEEP

    12288:wipn5OAwZ8WzFlu1LRv1p7JobG3VxFU+rHNeG/8Lk4JN7IxwxAAmfujoCkR:wiZw6W61LT+8PfjH/GnM+Ktfuj2

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      6cd70c89e9f2389550319a3e9c6d772423934f071c69afbd9ce007d4e68b112a.exe

    • Size

      650KB

    • MD5

      b3927e806d2e48118874fc3e5d9e3468

    • SHA1

      2eb24cb00e1dd2ec9f061b68595c0df695658fe9

    • SHA256

      6cd70c89e9f2389550319a3e9c6d772423934f071c69afbd9ce007d4e68b112a

    • SHA512

      530ec6396a242a462c9b4a1db02b2a3263caae4d3541419c237313610cb56ba811f5b4c3fd8b5c7f7976f8a53124504e95037166cf3a5bcc4b42cb0ff85bf743

    • SSDEEP

      12288:wipn5OAwZ8WzFlu1LRv1p7JobG3VxFU+rHNeG/8Lk4JN7IxwxAAmfujoCkR:wiZw6W61LT+8PfjH/GnM+Ktfuj2

    • 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 binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • 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

    • 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.

    • 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