Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bc957da295c5b0b…

MALICIOUS

PDF

33.6 KB Created: 2021-07-21 09:21:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8a75b8205e7f82ce725cb5b589f79c40 SHA-1: f23fb4a1c0c789b768028ccc628ab25107d04788 SHA-256: 6bc957da295c5b0b90da128977e03f0a50e2a612e82bceef0a9b8be5d10828d7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirector infrastructure, specifically advertising "free generators" and "game hacks" to lure users. The primary malicious URL identified is http://netcdn.tw/app/835599320/how-to-get-tiktok-famous-free-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly indicate a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/835599320/how-to-get-tiktok-famous-free-game-hack In PDF document text
    • https://lesvossolidarity.org/images/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • https://lesvossolidarity.org/images/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://lesvossolidarity.org/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://lesvossolidarity.org/images/free-robux-accounts_GM431946152.pdfIn PDF document text
    • https://lesvossolidarity.org/images/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • https://lesvossolidarity.org/images/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://lesvossolidarity.org/images/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://lesvossolidarity.org/images/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://lesvossolidarity.org/images/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://lesvossolidarity.org/images/free-robux-without-human-verification_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_off00002f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F00 22520 bytes
SHA-256: f506459435f942a5b60a6e95bdc3489cd840ac5dba0602f4ac111b8e7ebd9f09
font_01_sfnt_off00006182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6182 18248 bytes
SHA-256: 9d8c9ff8f23476e9e897d50e05ba1c89fe9a64794c9c08e4c2e4cb1c87253222

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