Malicious PDF — malware analysis report

Static analysis result for SHA-256 9762f614c8ce20a1…

MALICIOUS

PDF

34.3 KB Created: 2021-06-26 23:30:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8e915dd21647cbfe5b96f7115ab12c25 SHA-1: e5b154849cd9a52da273b08927768e60a38c8cbf SHA-256: 9762f614c8ce20a1868716463fe82a966b8febb0b2293da832f368ddf5d540c3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to malicious redirector infrastructure, disguised as offers for free game currency and hacks. The primary lure URL is http://netcdn.co/app/431946152/free-robux-2021-june-game-hack, which is flagged as malicious. The document body and embedded URLs reinforce this theme, aiming to trick users into clicking through to potentially harmful sites. No scripts were extracted, but the PDF's structure and embedded links strongly suggest a phishing or redirection attack.

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.co/app/431946152/free-robux-2021-june-game-hack In PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/free-spin-online-tool-coin-master_GM406889139.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/coin-master-free-spins-without-verification_GM406889139.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/robux-free-com_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/free-robux-generator-get-your-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/roblox-executor-free_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/free-robux-no-verification-2021-pc_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/is-it-illegal-to-hack-robux_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
font_00_sfnt_off00002e68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E68 22200 bytes
SHA-256: b07768351e9b335cfb4e55bf760e7cdc48b60c4f48387451bb24398eab922421
font_01_sfnt_off00006002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6002 19284 bytes
SHA-256: e1f96dae7fb8291c5af4365ccb9d60e85a6824d1a53e64e8e68db84b3619242e

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