Malicious PDF — malware analysis report

Static analysis result for SHA-256 a68638f7642a63d3…

MALICIOUS

PDF

33.3 KB Created: 2021-06-25 23:30:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 938df314c852bad2e5d2f1aedafc707c SHA-1: 262d4cdf8d02896c614890f3432b8d9c3e22b8ef SHA-256: a68638f7642a63d37ce2300fc2116340a9d4270422aabf1b01fe718fee94c392
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising 'free generators' and 'game hacks' for popular games like Roblox and Minecraft. The document body and extracted URLs strongly suggest a lure to trick users into visiting malicious websites, likely for credential harvesting or further malware delivery. No scripts were extracted, but the presence of malicious redirector links is a high-confidence indicator of malicious intent.

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/roblox-hacks-jailbrea-game-hack In PDF document text
    • http://www.salwangurgaon.com/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-free-spin-link-today-download_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coins-master_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-coin-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-real_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-free-spins-april-2021_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/roblox-script-hack-cheat-engine_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/boku-no-roblox-accounts-free_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-raid-hack_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/hack-coin-master-apk-31_GM406889139.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
font_00_sfnt_off00002d46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D46 21760 bytes
SHA-256: b40d0f8a9b7db35e67492150f72ca5bde3a60260f60186c5e88eadd85002c128
font_01_sfnt_off00005d45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D45 18944 bytes
SHA-256: 3f48177cc56e1275ca2b39865844e2d763d13c71463c9a2e06b9444c9726978a

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