Malicious PDF — malware analysis report

Static analysis result for SHA-256 68db22a93753b561…

MALICIOUS

PDF

41.8 KB Created: 2021-05-13 01:00:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7f1ba3f566319f97420bf7d3bf09498f SHA-1: 2a13180aa305ff9622df7b3c7db4d53b4398a7d0 SHA-256: 68db22a93753b56111ce8cd823f66f8a6fbed7d49df048f8d84c6456dedc6430
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that lead to a known malicious redirector infrastructure, specifically promoting 'free Robux' and game hacks. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to trick users into visiting malicious sites. No scripts were extracted, but the presence of malicious links and the lure content indicate a high likelihood of a phishing campaign.

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/431946152/how-to-get-free-robux-2021-game-hack In PDF document text
    • http://force-seniorklub.dk/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/coin-master-mod-apk-free-download-for-android_GM406889139.pdfIn PDF document text
    • http://force-seniorklub.dk/images/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://force-seniorklub.dk/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/best-hacked-client_GM479516143.pdfIn PDF document text
    • http://force-seniorklub.dk/images/roblox-ban_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://force-seniorklub.dk/images/free-printable-roblox-coloring-pages_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • http://force-seniorklub.dk/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://force-seniorklub.dk/images/free-coin-master-account_GM406889139.pdfIn PDF document text
    • http://force-seniorklub.dk/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://force-seniorklub.dk/images/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://force-seniorklub.dk/images/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://force-seniorklub.dk/images/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
    • http://force-seniorklub.dk/images/how-to-download-minecraft-for-free_GM479516143.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_off00004204.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4204 27240 bytes
SHA-256: 89197d936351fcc3220d833968d04c693c4f4f98743265750c05fa0177ec4b8b
font_01_sfnt_off00007f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F81 18684 bytes
SHA-256: 662354714a7c4aa127b8bd681013e9d5d113fbfc5a2f5afb2d34764175bb04a5

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