Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c80e274bfe3ad76…

MALICIOUS

PDF

39.3 KB Created: 2021-05-11 05:46:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 878c7c771eada68d33e74fcfa49fc14e SHA-1: 00ca65c265f1eb623929aca5833f0e5e3600b4c2 SHA-256: 7c80e274bfe3ad7623e44462bddbcb18ad895bd5f91679f4f1b1598bcc89a1e0
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a critical heuristic firing for a redirector link, specifically pointing to a "free generator / game hack" lure. The document body also contains the URL and a call-to-action phrase, reinforcing the phishing attempt. While no scripts were explicitly extracted, the nature of the redirector suggests it likely leads to a malicious payload download or further phishing content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/431946152/microsoft-roblox-rewards-game-hack In PDF document text
    • http://wolfzscriptsIn 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_off0000331d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x331D 24936 bytes
SHA-256: 11de94044f93dacbc86a88be9f31f4781d73f218a536921d39080f0955284198
font_01_sfnt_off00006c93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C93 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00007643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7643 18772 bytes
SHA-256: 885cbd3f72e53b67117bb4048e91371d45fd893deaab7f6141eb78c54bb681fd

Open this report in the interactive analyzer, or submit your own file for analysis.