Malicious PDF — malware analysis report

Static analysis result for SHA-256 590028cc8556d68d…

MALICIOUS

PDF

36.1 KB Created: 2021-05-23 17:34:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3f8319992c0d26c2725f2c919e4e2116 SHA-1: a2a4879fbc4f83ccb80ecdfdfe745e8f61782653 SHA-256: 590028cc8556d68d277ca1f2fd472c643f1adc0b77fd3ba16931f335c287c1e9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirector infrastructure, disguised as offers for game hacks and currency. The document body explicitly mentions 'Free Coin Master Spins And Coins' and includes a 'CLICK HERE TO ACCESS COIN MASTER GENERATOR' call to action, reinforcing the lure. The presence of multiple malicious links and the deceptive content strongly indicate a phishing or scam attempt, likely leading to further malware downloads or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/free-coin-master-spins-and-coins-game-hack In PDF document text
    • https://d-fankhauser-metallbau.ch/images/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
    • https://d-fankhauser-metallbau.ch/images/lots-of-robux_GM431946152.pdfIn PDF document text
    • https://d-fankhauser-metallbau.ch/images/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • https://d-fankhauser-metallbau.ch/images/free-shields-coin-master_GM406889139.pdfIn PDF document text
    • https://d-fankhauser-metallbau.ch/images/how-to-get-free-robux-on-roblox_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_off000034ae.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34AE 24968 bytes
SHA-256: 45ad3afb9f8b1e5baebef3699bf6bc7606a272c148e806b093b54f6a59d46372
font_01_sfnt_off00006c9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9C 18060 bytes
SHA-256: 55f53c4f18bfaf59a8fbb6d381f980c96a3f4ad908aa3278e43a985984e68094

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