Malicious PDF — malware analysis report

Static analysis result for SHA-256 4456eec56f990879…

MALICIOUS

PDF

42.8 KB Created: 2021-05-10 21:39:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-12
MD5: b30618e7f029ad8d3a014afb9ed84a1f SHA-1: 7004d76f1e0261c38a08909f484968512fd67a42 SHA-256: 4456eec56f99087904e1d346897f0cd66dbd8965a190fd7b21150b5e7ecb09d9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting "free generator / game hack" lures. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or scam attempt designed to redirect users to malicious sites.

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/new-free-spins-coin-master-game-hack In PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/actual-free-robux_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-email-free-spins_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/avatar-de-roblox_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/www-robux-com_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/free-spins-and-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-fun-hack-online_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/are-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-free-pet-snacks_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/roblox-com-hack_GM431946152.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_off00004aeb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AEB 26380 bytes
SHA-256: 74b29a7c1574c4bf8ed929ecbb7e3c4c54e6e3b2e65f502a7fc819eb01bc2520
font_01_sfnt_off000085a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A2 18052 bytes
SHA-256: f6ae81a0f80ce3ee57e108e39e83609ad458bab121923b9094461962bc480278

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