Malicious PDF — malware analysis report

Static analysis result for SHA-256 86971569e27d4901…

MALICIOUS

PDF

45.8 KB Created: 2021-05-22 07:14:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b60dd6f4ec4cfafd9b9cfda02699c779 SHA-1: a9cedace2e5ab3f2e228ba22bffc42588074005b SHA-256: 86971569e27d4901f1817911b24541175a91de76f22643659acc8ffcdd09923a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as offers for free game currency and hacks. The document body explicitly mentions 'Free Robux Websites' and includes a call to action to access a 'ROBLOX GENERATOR'. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-robux-websites-that-actually-work-2021-game-hack, which is associated with redirector activity. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7481

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/free-robux-websites-that-actually-work-2021-game-hack In PDF document text
    • https://www.polyfin.de/images/pubg-uc-price-in-nepal_GM1330123889.pdfIn PDF document text
    • https://www.polyfin.de/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://www.polyfin.de/images/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.polyfin.de/images/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • https://www.polyfin.de/images/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003366.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3366 33240 bytes
SHA-256: 7dbd9a7360f695f0fc1db61da89003aeda72c0882afa23649dc7b42554ea7f5a
font_01_sfnt_off00008128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8128 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00008dcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DCF 19656 bytes
SHA-256: 7b3ca8e33f6ab65cae0b12a773bae5d0e0377a7b1030ef9ec14be3c3cdd71d54

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