Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c41cffa73ed8f80…

MALICIOUS

PDF

30.5 KB Created: 2021-07-19 01:14:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4a61ac8c059af95d1531a60a7e4841a6 SHA-1: 55539a0e308ad7b082258772a9667da96db47ba2 SHA-256: 2c41cffa73ed8f8013e4defd81771f200e8efb7a37df0e7444bf68708035b28d
168 Risk Score

Malware Insights

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

The PDF document contains links to known malicious redirector infrastructure, specifically advertising free game hacks and generators. The document body also contains a prominent "CLICK HERE TO ACCESS MINECRAFT GENERATOR" call to action. The heuristics indicate that the PDF links to a malicious redirector and uses urgency lures. The ML classifier also flagged this PDF as malicious. The primary IOC is the malicious redirector URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9387

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/free-minecraft-server-game-hack In PDF document text
    • https://www.gejovenlo.nl/images/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • https://www.gejovenlo.nl/images/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • https://www.gejovenlo.nl/images/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://www.gejovenlo.nl/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.gejovenlo.nl/images/roblox-studio-free-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_off00002577.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2577 22356 bytes
SHA-256: 1c12ccc9b4dbfc8daa6d7ba82e9b97fc7a808a958d16fca55a28bb20c15a7e63
font_01_sfnt_off0000575f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x575F 17684 bytes
SHA-256: 971ebce79d03a5424fa8491ae570b1f65fe2ad06e00737069ab54be99501e2e8

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