Malicious PDF — malware analysis report

Static analysis result for SHA-256 750b23a4cc1b4ec4…

MALICIOUS

PDF

41.9 KB Created: 2021-05-14 09:36:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3c9ade97d1204238ed4c5de01b568c43 SHA-1: 2e5c3036a06a15a2eb12fe844fed907440c2952f SHA-256: 750b23a4cc1b4ec4233fc2312254ad098b87db6d651a6d18633aff9ac16c3b73
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and websites, disguised as generators for popular games. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely to lead users to download further malware or provide personal information. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-for-free-game-hack In PDF document text
    • http://junktiquecollector.com/images/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://junktiquecollector.com/images/coin-master-download_GM406889139.pdfIn PDF document text
    • http://junktiquecollector.com/images/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
    • http://junktiquecollector.com/images/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/free-roblox-intros_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/code-free-robux_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/how-to-get-free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://junktiquecollector.com/images/hack-coin-master-xyz_GM406889139.pdfIn PDF document text
    • http://junktiquecollector.com/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/robloxfun-com-generator_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/coin-master-free-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://junktiquecollector.com/images/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/coin-master-hack-apk-ios-download_GM406889139.pdfIn PDF document text
    • http://junktiquecollector.com/images/coin-master-free-coins-link-facebook_GM406889139.pdfIn PDF document text
    • http://junktiquecollector.com/images/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/game-give-free-robux_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_003_off00004bbd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BBD 24016 bytes
SHA-256: d2e6701a76bd5f600ce422012ec529100011014b11d474987549933e5bbda7c8
font_01_sfnt_off00008278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8278 17884 bytes
SHA-256: f64f8d8cd546afe107dcd88d9ce91258665e3d619825ef5ba403a2abc0c27184

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