Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fde17b234473127…

MALICIOUS

PDF

42.3 KB Created: 2021-04-24 18:28:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: cd424934f0d81d79ee2fcd3c5ec0f1cd SHA-1: 226f956dae337ac832a48daa92992017faa7912b SHA-256: 0fde17b2344731272716558baf911410bdc2370163a3937b02adc1a671644867
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs and a prominent lure related to 'game hacks' and 'cheat codes', strongly suggesting a social engineering tactic to redirect users to potentially malicious websites. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the document's structure and embedded links indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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 https://netcdn.xyz/app/431946152/phantom-forces-roblox-cheat-codes-game-hack PDF link annotation
    • https://distribuidorademoveis.com.br/ckfinder/userfiles/files/youtube-roblox-get-free-robux.pdfIn PDF document text
    • https://distribuidorademoveis.com.br/ckfinder/userfiles/files/roblox-giftcard-code-free.pdfIn PDF document text
    • https://distribuidorademoveis.com.br/ckfinder/userfiles/files/hack-roblox-plusieur-onglet.pdfIn PDF document text
    • https://distribuidorademoveis.com.br/ckfinder/userfiles/files/roblox-noclip-cheat-engine-lua.pdfIn PDF document text
    • https://distribuidorademoveis.com.br/ckfinder/userfiles/files/roblox-cheat-engine-work-at-a-pizza-place.pdfIn PDF document text
    • https://distribuidorademoveis.com.br/ckfinder/userfiles/files/free-gear-in-roblox-2021.pdfIn PDF document text
    • https://distribuidorademoveis.com.br/ckfinder/userfiles/files/roblox-hack-cheat-engine.pdfIn PDF document text
    • https://distribuidorademoveis.com.br/ckfinder/userfiles/files/free-gamepasses-roblox-script.pdfIn PDF document text
    • https://distribuidorademoveis.com.br/ckfinder/userfiles/files/roblox-account-hack-2021-works-next-video-with-proof.pdfIn PDF document text
    • https://distribuidorademoveis.com.br/ckfinder/userfiles/files/how-to-get-free-robux-no-download-or-survey.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004623.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4623 26560 bytes
SHA-256: 0f2a308d1f9ce7dbfe287872bfd4145e5dc1307f7153525dda6b71def7a8a3eb
font_01_sfnt_off000081b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B4 19032 bytes
SHA-256: ed19856f9add7c33c2a17037bde14abe469f674a9d1a91be4ab66a741f6129c7

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