Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a27a194ca93e417…

MALICIOUS

PDF

34.0 KB Created: 2021-07-20 00:30:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0b15f2ae6c3dabf0629cd44de31e91ec SHA-1: 7d865e16394b823194576664a01d8fc3405e750e SHA-256: 3a27a194ca93e4175a46d27ec086e42220d7c01979305069535ab6d16cd698d9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to redirector infrastructure, masquerading as free game hacks and generators for popular games like Minecraft and Roblox. The primary link, http://netcdn.tw/app/479516143/is-minecraft-dungeons-free-game-hack, is identified as malicious. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful sites. No scripts were extracted, but the presence of malicious links and the lure indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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/is-minecraft-dungeons-free-game-hack In PDF document text
    • http://samavetpharm.com/userfiles/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/minecraft-pe-free_GM479516143.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_off00003035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3035 22896 bytes
SHA-256: 3cbd6082874ac3b0a3a3dfea71d55c14a8aa5725c4d261cb8eb8e01210b67cd6
font_01_sfnt_off000062fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62FE 18304 bytes
SHA-256: ce690126d5ef6938f3c3401fec90eb29b657d34ca06495398573f2a883063706