Malicious PDF — malware analysis report

Static analysis result for SHA-256 a16aafae4dca421f…

MALICIOUS

PDF

33.7 KB Created: 2021-07-05 10:07:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 25c08fe9d7e21d7099a78e6da294b555 SHA-1: a53a5d55d82053b0cc58df473c739472a1535955 SHA-256: a16aafae4dca421f22f11db5dedf7e9ed0138eca1999465f4b9a54866da46596
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, which is designed to lure users into clicking on it under the guise of offering game hacks or free currency. The document body and heuristics indicate a phishing attempt to drive traffic to potentially harmful websites. No scripts were extracted from this sample, but the embedded URLs and the nature of the lure suggest a phishing or scam campaign.

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.tw/app/479516143/how-to-get-free-minecraft-alts-game-hack In PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/how-to-get-free-stuff-roblox_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/free-robux-no-human-verification-ios_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/how-too-hack-roblox-carlos-amin-house_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/how-to-hack-to-get-infinite-robux-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/coin-master-event-hack_GM406889139.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/how-to-get-free-items-on-roblox-without-robux_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/roblox-hacks-giveaways_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/what-percentage-do-roblox-robux-hacks-usually-go-to_GM431946152.pdfIn PDF document text
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/get-me-free-robux_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B4 21968 bytes
SHA-256: c1566178d3c3a1e0e93d5f26f300004e3b4a4a1992ce580bdfe67082f0eacc0a
font_01_sfnt_off00006121.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6121 18236 bytes
SHA-256: b23ed6ce0ca733f116ae3beec971ebaf347d03699ca21073755e7934a033f126

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