Malicious PDF — malware analysis report

Static analysis result for SHA-256 82929ba53b39ecba…

MALICIOUS

PDF

34.1 KB Created: 2021-06-25 21:51:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e93e7915cde703be4234718b428bfd49 SHA-1: e2477ff1c25e009bac21e644541775351a3843ca SHA-256: 82929ba53b39ecba565ca406fe5905d935c755e2e8e42e83d70f53d9d7d4e6b9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure of free game hacks and generators to trick users into clicking malicious links. The primary link redirects to infrastructure hosting numerous other PDF files, also disguised as game cheats and exploits. The document's structure and embedded links strongly suggest a phishing or scam campaign aimed at driving traffic to potentially malicious content or further exploit kits.

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/best-roblox-hack-2021-game-hack In PDF document text
    • https://key8013805.com.tw/upload/files/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/coin-master-free-spins-links-2021_GM406889139.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/best-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/free-robux-apps-that-dont-use-adgates_GM431946152.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/asshurt-roblox-hack_GM431946152.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/coin-master-event-hack_GM406889139.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/robuxmatchcon_GM431946152.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/coin-master-hack-review_GM406889139.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/pokemon-go-update-free-download_GM1094591345.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://key8013805.com.tw/upload/files/collect-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_off00002f79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F79 21844 bytes
SHA-256: a2ef4d05923cb2d8f21166ca89ce7860088e54eedefab1dfa73d47b469d9e712
font_01_sfnt_off00005fae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FAE 19164 bytes
SHA-256: f41b064b4872ea2e3dd09f2759c6e81602cb1bac20d680fcf87cd4e37b709062

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