Malicious PDF — malware analysis report

Static analysis result for SHA-256 05ecde466f7f7441…

MALICIOUS

PDF

39.6 KB Created: 2021-05-12 07:08:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a659b91479558c7a76e84457c54eaa64 SHA-1: 2a8467d36ea03f43058caa250bff6d9c1f30e98e SHA-256: 05ecde466f7f74412b2a637259160218d316669b91523bbaf0bc2429f52ea2e5
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirector lure, pointing to a malicious URL. The document body also contains text and a link related to 'free spins' and a 'generator', reinforcing the lure. While no scripts were extracted, the embedded URL is the primary indicator of malicious intent, likely leading to a further stage of infection.

Machine Learning

  • Nyx PDF Classifier clean score 0.0127

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/406889139/how-can-i-get-free-spins-on-coin-master-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000351a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x351A 26124 bytes
SHA-256: fd1323b415ed57bfd200d59588dec75d77bf661b75c85fcc69d540f808b57fe2
font_01_sfnt_off00007022.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7022 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00007a0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A0D 18052 bytes
SHA-256: f4ab70c7a1b321e89283bf56011259b2481f340c7b70b557de06403c5562b8cd