Malicious PDF — malware analysis report

Static analysis result for SHA-256 e43ddd270442fb3d…

MALICIOUS

PDF

34.6 KB Created: 2021-06-25 19:52:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: de72abf57f3ff3b9e82621610a34c9fa SHA-1: ce16878be633388218207c2abbb7115ae4930960 SHA-256: e43ddd270442fb3d6579fe0e31232461cc22a6bfd1b7ca6940fbde49abb48d44
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirector lure, pointing to a URL that likely hosts a malicious payload. The document body and numerous extracted URLs reinforce this lure, attempting to trick users into downloading or accessing harmful content. No scripts were extracted, but the primary attack vector appears to be a social engineering lure leading to a malicious download site.

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/boku-no-roblox-working-hack-script-game-hack In PDF document text
    • https://amiranet.com.br/files/files/how-to-get-free-robux-inspect-element-no-wait-2021_GM431946152.pdfIn PDF document text
    • https://amiranet.com.br/files/files/free-coins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://amiranet.com.br/files/files/free-robux-without-downloads-hypur_GM431946152.pdfIn PDF document text
    • https://amiranet.com.br/files/files/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • https://amiranet.com.br/files/files/wearedevs-roblox-exploits-and-hacks-amp_GM431946152.pdfIn PDF document text
    • https://amiranet.com.br/files/files/free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • https://amiranet.com.br/files/files/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • https://amiranet.com.br/files/files/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://amiranet.com.br/files/files/real-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://amiranet.com.br/files/files/coin-master-hack-download-apk_GM406889139.pdfIn PDF document text
    • https://amiranet.com.br/files/files/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://amiranet.com.br/files/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://amiranet.com.br/files/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://amiranet.com.br/files/files/free-robux-by-downloading-apps_GM431946152.pdfIn PDF document text
    • https://amiranet.com.br/files/files/how-to-get-free-robux-inspect-element-2021_GM431946152.pdfIn PDF document text
    • https://amiranet.com.br/files/files/free-roblox-account-with-rpbux-password_GM431946152.pdfIn PDF document text
    • https://amiranet.com.br/files/files/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://amiranet.com.br/files/files/coin-master-free-spins-hacktman_GM406889139.pdfIn PDF document text
    • https://amiranet.com.br/files/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://amiranet.com.br/files/files/emperor-hacks-roblox-discord_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_off00002fb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB6 22384 bytes
SHA-256: 7f444d6d6523c85318cd943678a55ef79505adfb2ad14af7fa50411b37022b87
font_01_sfnt_off0000610f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610F 19392 bytes
SHA-256: 49916f55e63abf594ff19df107a7c260e896c84430e1f48bd450ae9f849c8b01