Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce48c96f55dcd3b4…

MALICIOUS

PDF

40.9 KB Created: 2021-05-20 00:53:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 71c20a5d8df876297ab8a8671a704f93 SHA-1: 59ea022fa8c46836c3e84ddb80651ff009cceaa4 SHA-256: ce48c96f55dcd3b4f76b5ceeba555e76a2a2af82fa6387e451f7ee31d822c637
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 0.9971

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/1330123889/pubg-uc-number-game-hack PDF link annotation
    • http://lib3tell.stptrisakti.net/repository/free-robux-games_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/robux-gainer_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/robux-offers_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/link-coin-master_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/can-you-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-hack-quora_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/legit-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/moon-static-coin-master-generator-hacks-free_GM406889139.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
stream_003_off000044fe.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44FE 25256 bytes
SHA-256: 20919e86375ff75cd43ff3949b239ba2d135ada7b6bbde6fd239247f0c48b281
font_01_sfnt_off00007dbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBC 18156 bytes
SHA-256: b40f7278a10c47a9d702e8abbbc6acc031d284f14642544d259b49416ed87b59

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