Malicious PDF — malware analysis report

Static analysis result for SHA-256 63d957ab115480c9…

MALICIOUS

PDF

48.1 KB Created: 2021-06-03 05:52:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: a62afe5607b839d2fc9290a109bcf2d9 SHA-1: 744bd9a17d36889c6f004a7f04da72f2cdf60965 SHA-256: 63d957ab115480c9c139d38dd7f22a767764afe592ad934ce013117104773dc1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, masquerading as game hacks and generators. The primary malicious link identified is https://netcdn.online/app/431946152/how-to-hack-roblox-mac-2021-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a redirection-based attack, likely intended to lead the user to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.online/app/431946152/how-to-hack-roblox-mac-2021-game-hack In PDF document text
    • http://library.itekes-bali.ac.id/repository/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-bubble-gum-simulator-hack-script_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-make-a-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-generate-free-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/game-hunters-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-spins-coin-master-2021-app_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/hack-a-game_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_004_off000054fe.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54FE 28952 bytes
SHA-256: f67abf2ef2b76b64f15b303582779efa42c82ecc08e8d690a17f0b5fe22c218a
font_01_sfnt_off0000976c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x976C 18944 bytes
SHA-256: 143816a18bc30cdb70b1ed750da361fb28ccb0778b4e1b507a4aac2a103039f2

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