Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa00121863c0d4de…

MALICIOUS

PDF

34.1 KB Created: 2021-06-27 08:52:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3c48575a386702c1734756cad7190c4d SHA-1: 1463fb3864e3ffe694038441c638f3871a62a446 SHA-256: fa00121863c0d4de348fae549ebde5adbb23a1f7d4b9e068fe9a874f016b0850
160 Risk Score

Malware Insights

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

The PDF document contains multiple links, including one to a known malicious redirector infrastructure, designed to lure users into clicking for game hacks or free currency. The document body and heuristics indicate a social engineering tactic to drive users to potentially malicious websites. While no scripts were explicitly extracted, the PDF format itself can embed JavaScript, and the presence of redirector links suggests an attempt to exploit vulnerabilities or deliver further malicious content.

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/free-robux-for-videos-game-hack In PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/gainblox-gg-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/tiktok-free-package-dialog_GM835599320.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/coin-master-hack-app-for-iphone_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/free-roblox-names-and-passwords_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/free-games-like-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn1sby.sch.id/__statics/gudangsoal/files/roblox-how-to-get-a-shirt-for-free_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_off00002f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F32 22012 bytes
SHA-256: 30d1b37d13420d17a63b5896a8d270b62466386587bd147ac6dae426035b9c68
font_01_sfnt_off00005fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE4 19144 bytes
SHA-256: 048610b92919bfdce60157d4731565e56a55670f765c015c635ee9317ce402b7

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