Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bf6b516af8d9112…

MALICIOUS

PDF

36.6 KB Created: 2021-05-21 06:14:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 90c213a679560b6ce155a3b18a11f92d SHA-1: 8eb378775778b63b61b6c64b8c681876c1679f43 SHA-256: 8bf6b516af8d9112834c79e779bf1d36917e6dcccc5c1409c5c732776ca6c6f7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/479516143/play-minecraft-online-free-game-hack PDF link annotation
    • http://nationshield.ae/userfiles/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/heroes-online-roblox_GM431946152.pdfIn PDF document text
    • https://www.youtIn 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
stream_002_off0000331a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x331A 26324 bytes
SHA-256: d172322526d1c2eac58f47b4441b7ac99b6e4a352cec87fe8069167c183cab74
font_01_sfnt_off00006f02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F02 17976 bytes
SHA-256: e953997c623ab1bd3546e7b188ca680e36d1015a1cf7f46efbbf98890a47325d

Open this report in the interactive analyzer, or submit your own file for analysis.