Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eaf73d1f981d239…

MALICIOUS

PDF

43.9 KB Created: 2021-05-25 10:33:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 37fb17878085b3e2814ffed7b291581f SHA-1: ca8502e378776d76274b9929c352f41fce739a20 SHA-256: 7eaf73d1f981d239fa19949c18a67432686e38fee90bda477e0131441406b46a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to websites offering 'free generators' or 'game hacks', specifically mentioning Robux and Coin Master. The heuristic firings indicate these links lead to known malicious redirector infrastructure. The document body and embedded URLs strongly suggest a phishing or scam attempt to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7947

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/robux-gift-card-free-game-hack In PDF document text
    • https://www.dealcafe.me/uploaded_files/userfiles/files/coin-master-500-free-spins_GM406889139.pdfIn PDF document text
    • https://www.dealcafe.me/uploaded_files/userfiles/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://www.dealcafe.me/uploaded_files/userfiles/files/real-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.dealcafe.me/uploaded_files/userfiles/files/free-rare-cards-for-coin-master-christmas_GM406889139.pdfIn PDF document text
    • https://www.dealcafe.me/uploaded_files/userfiles/files/2021-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000036cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x36CC 25504 bytes
SHA-256: ba4071919385cf40e2f38b81eba8832340d3e02a34fd312fd62d294b6c4e6d16
font_01_sfnt_off00007209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7209 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00007bb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB2 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off000088c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88C3 18640 bytes
SHA-256: dc19c2dc7c571358abc7904f3409549de68542ff7a2dde77b507fd070c6276df

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