Malicious PDF — malware analysis report

Static analysis result for SHA-256 e92b16024ecd906c…

MALICIOUS

PDF

38.3 KB Created: 2021-05-23 16:07:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b37e8d11479131ee42a66beb6b6e61ee SHA-1: dc54451b893c8bddeca79a27fc3a30388b6fce9f SHA-256: e92b16024ecd906c97fd3c8c14d521d29bae51c7ce4a1211ad2d533ac55358d8
160 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links that redirect to malicious infrastructure, masquerading as free game hacks or generators. The document body and heuristics indicate a lure to entice users to click these links, likely leading to further malicious content or exploits. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a malicious redirector chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

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/tiktok-minecraft-hacks-game-hack In PDF document text
    • http://ipdrs.org/images/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/coin-master-email-free-spins_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-free-spins-for-coin-master_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
stream_002_off000033f7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33F7 29536 bytes
SHA-256: 8ca90af95fe9be0202ab676916d0b607d7ab81c02a5dcbaccfb733305cf82976
font_01_sfnt_off000075f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F1 17880 bytes
SHA-256: df7e49ec95a548ee0d23b7b279df4e27423bf5bf6641f50b7ca94314a26af21a