Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9d8695b52574c98…

MALICIOUS

PDF

34.1 KB Created: 2021-07-03 17:27:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 77fa75f1a69a7700dd42bbb557135bb2 SHA-1: 229cd79912f16e817f177bf5b5368a35a6f84874 SHA-256: d9d8695b52574c98c7464c59fa7ffd69f4a17bf08b3fcf7497c5179baf60d400
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous URLs and text related to obtaining free in-game currency or hacks for popular games like Minecraft and Roblox. The presence of an external URI pointing to a suspicious domain, combined with a high ML classifier score, indicates a malicious intent to redirect users to potentially harmful content. The document body explicitly mentions 'how-to-get-minecraft-windows-10-for-free' and includes a call to action, reinforcing the lure.

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-minecraft-windows-10-for-free-with-java-game-hack In PDF document text
    • https://mbbs.hr/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/robuxy-com-generator_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://mbbs.hr/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/apk-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/roblox-wanted-money-hack_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/roblox-free-download_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/how-to-get-free-robux-2021-february_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/cheat-engine-64-roblox-bypass_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/how-to-hack-in-roblox-jailbreak-on-ipad_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/how-do-you-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/free-robux-no-human-verification-or-survey-ios_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/roblox-points_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/pubg-uc-zong_GM1330123889.pdfIn PDF document text
    • http://mbbs.hr/files/work-in-a-pizza-place-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/new-free-robux_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/free-robux-earn_GM431946152.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_off00002d4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4F 22636 bytes
SHA-256: 4a5b5cb49578b98420a3da6b9f3001149159dd95acd8f2ea9a7a2976df6f1379
font_01_sfnt_off00005f94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F94 19256 bytes
SHA-256: 705954b0752298f81a5f04650af255d7014e85ab327a501377ac0e07f74b9918

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