General

  • Target

    f3dbd53a7626f27b98eabb7aa8c42ffdcd5b93a382bf74476a05e94f20022160.zip

  • Size

    643KB

  • Sample

    240430-cjazaahh3z

  • MD5

    136240e2c13cb1aefb92c7b2896d45a6

  • SHA1

    ac76df964db44409647a65b39beac64bfdee39e3

  • SHA256

    f3dbd53a7626f27b98eabb7aa8c42ffdcd5b93a382bf74476a05e94f20022160

  • SHA512

    f99295ca3d7dffe262550141d7310e0478590f1b58853f2442e44d050a94175bb0724879184288f8b1d91d02f1c3344d460410e248cd29b54c6ff23340f699b9

  • SSDEEP

    12288:nYTosT8xkiEVlzOiLQWEfkPcY4tpfaVHMPHaBcAB2PILQzQ3bjjgtbXVxPnDLSC7:nY8rslz7LOkPetFaVsP6Bd2qsQ3jyrzB

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      FDA.exe

    • Size

      671KB

    • MD5

      fd9af8f629d0d2e3e8cc132cdff97497

    • SHA1

      1552f3db433eb345809069d011f2fb9684032738

    • SHA256

      5d2b78785f719fda04cda095b4dfb75d00440fc39ab6e52d176a74786541bdaf

    • SHA512

      227da1c0f9e83d3b0e757f269b32d617aec47990c5eb6f6787b6036951bab11f5f51051b1c56478fedc1bb8ae04de8404db5d67c437d4c5f20faa1645a77598e

    • SSDEEP

      12288:y5B778QHjEpFzOiLqWEtkHyog+rUVHwP3yu1c2b2PIfQzk3bjzgtVlHxPpoTFqph:6BBiFz7LAkHDUVQPCu132csk3zybR+TS

    • 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks