Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee3f933be65237f5…

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 06:46:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 4383ef01c61592f60b79e756f9cb7ca7 SHA-1: 85d8d5574369166d9d5190a39ed830400265f2f5 SHA-256: ee3f933be65237f5eccb9520c7f9f051133bf44828491e95aa1c5ab26cbc2dd1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free in-game currency, directing users to a suspicious URL. The ML classifier strongly indicated maliciousness, and the embedded URLs are associated with known scamming or phishing attempts. No scripts were extracted, but the document's content and linked URLs suggest a phishing or scamming attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/431946152/get-free-robux-without-doing-anything-game-hack PDF link annotation
    • http://perpus.masda.ac.id/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-free-robux-generator-online-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-get-free-robux-video-no-hacking_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/robux-com-free-account_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-roblox-codes_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-3-letter-names-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/robux-hacknetpremium-robux-generator_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-robux-come_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-hack-2021-july_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-account-hacker-free_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/static-moonactive-net-link_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-devil_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002eba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBA 22236 bytes
SHA-256: 87398dd171995dcf65a7e5b620d42cca9f6b616ad8843b3ae3ce6f4e0912e26a
font_01_sfnt_off00006057.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6057 19652 bytes
SHA-256: d01fab7bff865e1e572a69531771b19011470ec9dd60cfeb54f37c62aa9fdbeb

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