Malicious PDF — malware analysis report

Static analysis result for SHA-256 5544e1422507b76d…

MALICIOUS

PDF

35.2 KB Created: 2021-06-20 05:38:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 429971be9929c260c1049696f92f2c1f SHA-1: 994dbab9eda37e934c3e7e493705d66135b1f965 SHA-256: 5544e1422507b76d93b45e7f27088424de7ee6c6696a5552cd3c2454172afce9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure related to game hacks and free currency to trick users into clicking embedded links. The primary link, http://netcdn.co/app/431946152/best-hacker-noob-roblox-avatar-game-hack, redirects to known malicious infrastructure, indicating a likely phishing or malware distribution attempt. The document's structure and embedded links suggest it is designed to exploit user interest in obtaining in-game advantages, leading them to potentially harmful sites.

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/best-hacker-noob-roblox-avatar-game-hack In PDF document text
    • http://lesvossolidarity.org/images/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/cm-spins_GM406889139.pdfIn PDF document text
    • http://lesvossolidarity.org/images/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/ww-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/roblox-how-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-roblox-groups_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/roblox-speed-hack-2021-march_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/nuvos-hack-de-roblox-6-05-2021_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/robux-free-co_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/how-to-create-good-skin-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/sword-fighting-roblox-game-free-to-copy_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://lesvossolidarity.org/images/krnl-roblox_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/roblox-hack-gui-download-robux_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-fire-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E1 22796 bytes
SHA-256: 89a7af378246b75f6c189313079127e0368fe5a38caf103322954b635e6165d9
font_01_sfnt_off000064c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C6 18876 bytes
SHA-256: 51d85157f63c4845c5acfe17a9a97fb6ebe2473304500200a0f93c29db58fee1

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