Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ddd3e8003a99203…

MALICIOUS

PDF

43.7 KB Created: 2021-05-13 17:08:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 70c8072d5a2a2f69842bd01483872212 SHA-1: e0a1a7ce89e04f93b325ec90e4a2d69e8422ff50 SHA-256: 8ddd3e8003a99203933d593414b13393d33d93f12889ba479bbef366080e6428
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game items and spins, directing users to a known malicious redirector. The embedded URLs and the document's structure strongly suggest a phishing or scam attempt. While no scripts were explicitly extracted, the PDF format itself can embed JavaScript, and the heuristic firings indicate malicious redirection and a lure for user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/406889139/100-free-spins-coin-master-link-game-hack In PDF document text
    • https://ethraa.ae/userfiles/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-fan-page_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/websites-for-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/game-hunters-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/download-coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-custom-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/game-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/daily-free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-app-hack_GM406889139.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
stream_003_off0000477a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x477A 24372 bytes
SHA-256: 02ba8eedd9400e41d8bbe294922acd94f62279ab6c528ec026159beea7f45171
font_01_sfnt_off00007e79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E79 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off0000882b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x882B 18336 bytes
SHA-256: 9c7d71bf4653e82f34779ff687ecc32abef763f146c991042409a9b1562a78ec

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