Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9275e06094afed6…

MALICIOUS

PDF

36.0 KB Created: 2021-06-21 12:57:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 27e92663cb98d519dde7f91730cd80f6 SHA-1: 6bb9ccf5ccb2ddb69824af57f30b92c116999f01 SHA-256: d9275e06094afed6ab224ddc44ad429d95547fed86327e08ef38facf6a32228b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to malicious infrastructure, specifically targeting users interested in game hacks and free in-game currency like Robux. The heuristics indicate these links lead to known malicious redirectors and a lure for game generators. The document body, though partially corrupted, contains text and URLs consistent with a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-robux-wiz-game-hack In PDF document text
    • http://uptodate.az/images/free-800-robux_GM431946152.pdfIn PDF document text
    • http://uptodate.az/images/bird-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • http://uptodate.az/images/tshirt-free-roblox-of-2021_GM431946152.pdfIn PDF document text
    • http://uptodate.az/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://uptodate.az/images/battle-royale-roblox-hack_GM431946152.pdfIn PDF document text
    • http://uptodate.az/images/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • http://uptodate.az/images/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://uptodate.az/images/how-to-get-free-robux-at-computer_GM431946152.pdfIn PDF document text
    • http://uptodate.az/images/coin-master-hack-ios-app_GM406889139.pdfIn PDF document text
    • http://uptodate.az/images/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://uptodate.az/images/spin-coin_GM406889139.pdfIn PDF document text
    • http://uptodate.az/images/coin-master-hack-apk-35-33_GM406889139.pdfIn PDF document text
    • http://uptodate.az/images/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://uptodate.az/images/how-to-get-free-robux-without-downloading-or-human-verification_GM431946152.pdfIn PDF document text
    • http://uptodate.az/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://uptodate.az/images/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • http://uptodate.az/images/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://uptodate.az/images/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://uptodate.az/images/how-to-hack-roblox-accounts-2021-zero_GM431946152.pdfIn PDF document text
    • http://uptodate.az/images/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33F9 22932 bytes
SHA-256: ac0fe745a73aecfdc9df9da22f6ae795e784ccfdf983b3542d0565a16ade78c0
font_01_sfnt_off00006772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6772 19116 bytes
SHA-256: 3de36fc5821f5c71cff78a942cea51d4d99740ad07584a2efd834f2939b440ba

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