Malicious PDF — malware analysis report

Static analysis result for SHA-256 c70ff2a3822767d5…

MALICIOUS

PDF

35.6 KB Created: 2021-07-19 13:23:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6f35574e86ced9fc6d37eed7552cffee SHA-1: 533fbd1dddfb06210dbd7756ecf30ce98757ff81 SHA-256: c70ff2a3822767d54ad68a1fbc1a2ba47b7e60bfade9634b969eabb1fbdcdd7d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document contains multiple links designed to lure users into clicking on offers for free in-game currency or items. The primary link redirects to a known malicious infrastructure, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a potential for exploitation or redirection to a malicious payload, likely involving client-side execution.

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 http://netcdn.tw/app/406889139/coin-master-free-spins-promo-code-game-hack In PDF document text
    • http://beaksandpawsfl.com/images/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/tiktok-likes-free_GM835599320.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/how-to-get-followers-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/free-robux-real_GM431946152.pdfIn PDF document text
    • https://www.urcouponsdeal.com/2021/03/coin-master-free-spin-and-coin-links.htmlIn 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_002_off00003433.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3433 23440 bytes
SHA-256: e381e79bd61eae9adbd6179e9408fd4359759f00a69c7dfc425689c7fe87fce9
font_01_sfnt_off00006907.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6907 18476 bytes
SHA-256: dc3ef91c42b56b19e880a129857b9cc4209ff723fc15082788877c1745c42c0a

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