Malicious PDF — malware analysis report

Static analysis result for SHA-256 17ba1211de9c546b…

MALICIOUS

PDF

35.6 KB Created: 2021-06-28 02:21:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5d74cba5a07cb4aaec7e4052dc9b1a9c SHA-1: e120b02bb9d2ba67358f5b47290f745160f2df8c SHA-256: 17ba1211de9c546bf88e59f86657dcae427641e2822e51e162634a0e799a0dc3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to malicious infrastructure. The embedded URL and document body text reinforce this, indicating a social engineering tactic to trick users into visiting a potentially harmful site. No scripts were extracted, but the primary attack vector appears to be a malicious link.

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/boku-no-roblox-remastered-script-hack-game-hack In PDF document text
    • https://allpromise.com.tw/image/data/files/what-is-a-robux_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/how-to-cheat-in-yin-vs-yang-ninja-assassin-roblox_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/roblox40com-robux_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/how-to-get-free-chest-in-coin-master_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/tycoon-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/free-roblox-accounts-obc-lifetime_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/cheat-codes-for-roblox-murder-mystery-2-pets_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/coin-master-mod-version-free-download-34-4_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/get-free-robloxgg_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/how-to-hack-rpg-world-roblox_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
font_00_sfnt_off00003189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3189 22756 bytes
SHA-256: 878a7ae1ec0435178704c68d4161e1edf40bb3eaea49d8ed1c2d495a19903021
font_01_sfnt_off0000647e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647E 19632 bytes
SHA-256: 8920750680363215822791c2e529cb40e0806ef6880989c6e25849677730ec03

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