Malicious PDF — malware analysis report

Static analysis result for SHA-256 95fbd1660bfc2eaa…

MALICIOUS

PDF

33.7 KB Created: 2021-06-25 15:11:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9501f7c55ac8c9f1030a5a37bac6af26 SHA-1: e7bdd2ca52bd933f4cbb6bd39c3c2d7b328012d5 SHA-256: 95fbd1660bfc2eaa05c1bc9accd8a5d9b7432b430b08367df3a8c00d4ba1a6d2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains lures for free game currency and hacks, directly linking to a known malicious redirector. The document body and embedded URLs reinforce this theme, aiming to trick users into visiting the malicious site. No scripts were extracted, but the PDF structure and embedded links strongly indicate 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/new-code-free-robux-game-hack In PDF document text
    • http://www.buapit.ac.th/UserFiles/File/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/game-hunters-coin-master_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/hack-roblox-dll_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/master-coin-free_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/coin-master-gold-cards-free-2021_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/free-roblox-wings_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/rare-free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/how-to-get-the-elite-radio-in-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/coin-master-hack-355_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/free-spins-coin-master-2021_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_off00002c99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C99 22344 bytes
SHA-256: b838f9a2d00f30c45c531e61e352d023abe8a6a8fe8a022324e2fb397b45e9ee
font_01_sfnt_off00005e83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E83 19056 bytes
SHA-256: 8a02a0f4b48ae542c9573b491fa5b42e4c308e1519d62ef8427379c5bdc6cc48

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