Malicious PDF — malware analysis report

Static analysis result for SHA-256 7aa2afe65a49c403…

MALICIOUS

PDF

35.3 KB Created: 2021-05-21 15:25:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ddc262275245dec0047fba8cfd835272 SHA-1: 7e2e2b3b68ac012946bd509eb2369bae2eb6f5df SHA-256: 7aa2afe65a49c403ff3f42ab44183c940f10561484ecd5a507a88aa17a0d70e3
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors, disguised as game hacks and generators. The document body and embedded links suggest a lure to download or access further malicious content. The ML classifier also flagged this PDF with high confidence, indicating malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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 https://netcdn.xyz/app/479516143/best-free-minecraft-texture-packs-game-hack In PDF document text
    • http://maslabaou.com/images/no-robux_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/earn-roblox_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/free-coins-for-flip-master_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/websites-that-give-you-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
stream_002_off00003257.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3257 24332 bytes
SHA-256: bc694bd487e5e03cd4fea6a66c4554789a51f5f27ab9aeab61c5509d56913543
font_01_sfnt_off0000686e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x686E 18460 bytes
SHA-256: 31257519935a968b1de16a3a71cb9b2eaae2afa87081bbe73112141ce1027594

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