Malicious PDF — malware analysis report

Static analysis result for SHA-256 457938a262bc0be5…

MALICIOUS

PDF

48.8 KB Created: 2021-06-03 08:29:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 22d0b48616061234be596f75960f0c85 SHA-1: 12c0a56f7cf1a4b82ba40dc65bce6e7a080d2460 SHA-256: 457938a262bc0be544dfff5f63ea86133b11fbb2ef44cde20fe847ed070630d8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to a "roblox-admin-hack-game-hack" URL. This URL is designed to lure users with promises of game hacks, a common social engineering tactic. The ML classifier also flagged the PDF as malicious. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.online/app/431946152/roblox-admin-hack-game-hack In PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-coins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/hack-xp-net-generators-coin-master_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-for-pc-free-download_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5340 24836 bytes
SHA-256: 453d429b13bdeb6a296e87e1af03bc34a46c47df746a26924a5bd5085e20bb70
font_01_sfnt_off00008abd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ABD 4660 bytes
SHA-256: b8980cdac4d025496d9fe039d8c05bb5b9bae1b804244a1f9c05e9663db72816
font_02_sfnt_off00009ace.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ACE 18736 bytes
SHA-256: 3c6e42d8b899458ba5de36bc8f8a4655a2118fb63f8b9623f3d1687e7f66cf01

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