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General

  • Target

    03a23b591496c1e4e2541839975c67874ffb1ba515b1ebb13af225d668759989.ace

  • Size

    19KB

  • Sample

    240224-keqsyafc6z

  • MD5

    571a0c88df4b124cb02a0107fc02896c

  • SHA1

    a56b280e5b393ed878d79b27379378cccaedb818

  • SHA256

    03a23b591496c1e4e2541839975c67874ffb1ba515b1ebb13af225d668759989

  • SHA512

    447fcf0541338cf663b4d0d6c785bd6c794aa88dd96c44f557e5ef91d927572e6f8c6842539257fcce6b8909ef41738499254042232b0fc6f850c7be4edd76c8

  • SSDEEP

    384:e3Q7Muu/XZhX5LCaCH7DTig2x7bthKngR+OBMQ3AWMAbQUkPb6DRl65AfR2eNUos:o1JDCaCX8hRsOBMQ3TwUkj6DRliAgozA

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      QUOTATION REQUIRD.exe

    • Size

      39KB

    • MD5

      a08fc570175654538ef118d911b16436

    • SHA1

      2712e7784d75d4746032e825eca8abc0a8306245

    • SHA256

      013cfd5a41b2ad509d642e132c4eee49ed5a19418b7ff77523a9965a08afa008

    • SHA512

      5b0aced9b7a7a1c82195b178a55351ba51ced19052e7fa1f837055e5c2b763d8ab00ff420206a65541cd6b9568d8baa954fe457b019402edf5921e6e3b39848d

    • SSDEEP

      768:iRXnmQnpZJE8sNd9LnZVxSy9eg1W6T+v5q:QhnpZJEj39DNSy9rdCvU

    • AgentTesla

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

    • Contacts a large (4670) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • 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 packed with or use KoiVM

    • 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

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

    • 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