Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc344283d118c72…

MALICIOUS

PDF

34.1 KB Created: 2021-07-09 03:33:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-30
MD5: d140a5ed4aad0819eeff36f3d692f5e6 SHA-1: 87b0e41c167a2bfc753fc6df5375d01ad1ac1301 SHA-256: 1dc344283d118c720917530bb7c14d7e8a2934cc40ae0500adefea30bf84bc9f
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/original-roblox-game-hack In PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/www-rubux_GM431946152.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/coin-master-100-spin-slot_GM406889139.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/free-spins-and-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/como-tener-robux-hacks_GM431946152.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/pokemon-go-kanto-free-pass_GM1094591345.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/free-completed-shirt-template-roblox_GM431946152.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/toolbox-mod_GM479516143.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/free-disney-plus-accounts-tiktok_GM835599320.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/coin-master-game-hack_GM406889139.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/coin-master-free-coins-link-facebook_GM406889139.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://vavafashions.com/uploaded_files/userfiles/files/free-robux-redeem-cards_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
font_00_sfnt_off00003062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3062 22196 bytes
SHA-256: b50e9260bb9fa653b89c6b5ee078c4e01075d2748d3da459cf86905ca0f5e06e
font_01_sfnt_off0000616a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616A 18608 bytes
SHA-256: cda18107a8004d3fd9a2df0472be64e29a4b8b84a0aa3b03f94af7bd0ce31f53

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