Malicious PDF — malware analysis report

Static analysis result for SHA-256 f12740028b366c2a…

MALICIOUS

PDF

49.2 KB Created: 2021-05-20 02:58:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 52fce5cdb292a05295e72d29025b9aae SHA-1: 8dfa2a137415bde94cd8e9000a10387e7b8acd58 SHA-256: f12740028b366c2ac35159b782d5793843eb16217e58386578dfee4761c38ed9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a malicious redirector infrastructure, specifically advertising free in-game currency and hacks for popular games. The heuristic firings confirm these links are associated with malicious redirectors and lure tactics. While no scripts were explicitly extracted, the nature of the links suggests a potential for further malicious activity, such as downloading additional payloads or redirecting to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

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.xyz/app/406889139/coin-master-spins-hack-iphone-game-hack In PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-hack-tool-no-human-verification_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/what-tiktok-free-fans_GM835599320.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/tiktok-free-up-space_GM835599320.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-draw-roblox_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-spins-for-coin-masters_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/robux-win_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-spin-link-hack_GM406889139.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cd3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CD3 25564 bytes
SHA-256: 2d6cd2828e739a3295df1e1f9ea1ffb8c4c27b71ea9041e157cb85ffcb4b0a67
font_01_sfnt_off000086ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86EC 4028 bytes
SHA-256: a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91
font_02_sfnt_off0000948d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x948D 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off00009e7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E7D 18060 bytes
SHA-256: e81d352b07e1ce097e3d885718cd431adb2fa9f9fe53d93d172b47981e22424a

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