Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fc6d883252f6551…

MALICIOUS

PDF

32.6 KB Created: 2021-07-19 09:10:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 042283a6319d6ed6fbd92258e6bce36e SHA-1: 216927ab36b6a23224063ca0fe83b0d7aa6a8031 SHA-256: 8fc6d883252f6551da9771408ca4bbb59f85faa42b73dd122e1fa40a2cb70b4f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game hacks and generators to entice users to click on embedded links. The primary link, http://netcdn.tw/app/479516143/how-to-get-minecraft-bedrock-for-free-game-hack, is identified as a malicious redirector. The document body and embedded artifacts suggest a social engineering tactic to drive traffic to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/479516143/how-to-get-minecraft-bedrock-for-free-game-hack In PDF document text
    • http://www.reikiusui.it/images/is-tiktok-free_GM835599320.pdfIn PDF document text
    • http://www.reikiusui.it/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.reikiusui.it/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.reikiusui.it/images/how-to-get-free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://www.reikiusui.it/images/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://www.reikiusui.it/images/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.reikiusui.it/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://www.reikiusui.it/images/tiktok-free-views_GM835599320.pdfIn PDF document text
    • http://www.reikiusui.it/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.reikiusui.it/images/coin-master-free-spins-and-coins_GM406889139.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_off00002d60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D60 21664 bytes
SHA-256: 67284c5580d7cf5b773a1c0be572f0ca6f9dd8111095553fed0ede32d87aef8d
font_01_sfnt_off00005ccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CCB 18436 bytes
SHA-256: 052b3e4eb9e318375354f57606905a9f494055cf593924234d38117cd20d5d16

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