Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d2ba4a4d91ec4dd…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 13:37:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 33a8fc1d6fdfd1af293b375fd8a549c9 SHA-1: e45b5923b84ea17ef39a6a825d9660b8bf56d83c SHA-256: 6d2ba4a4d91ec4dd879db05066737c588389e79fd8e069257907b8af182774ad
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/431946152/how-to-hack-any-roblox-account-game-hack. This link is presented as a lure for game hacks, indicating a social engineering tactic to drive users to potentially malicious sites. No scripts were extracted, but the presence of malicious links and the lure suggest 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.tw/app/431946152/how-to-hack-any-roblox-account-game-hack In PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/tutorial-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/script-hack-roblox-download_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-clothes-generator-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/dragon-ball-z-final-stand-roblox-free-laevels-3_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-hack-roblox-2021-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-roblox-cards-pin-number_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-install-sandbags-777s-eyeball-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-phanthom-forces-credits-hack_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/google-coin-master-free-spins_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_off00002f51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F51 22188 bytes
SHA-256: 18332517b08ed89301bcd1db87bad7b955cdabc2d59994752e3fa0129faa2f14
font_01_sfnt_off00006070.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6070 19244 bytes
SHA-256: 6d65792bfd45bcee93e0a3a5c2653c8cc75893afabb3de85f48b4c2dd1390979

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