Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bed064699f2af6e…

MALICIOUS

PDF

43.7 KB Created: 2021-06-14 00:15:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f4394f16ddd7311189c3f9e7ba867f23 SHA-1: d15edff4bdab69c1d2d50d1827bc37ebeeaf1db1 SHA-256: 3bed064699f2af6ec3f64c34d43b7ce1395ff1f5127808d9307aad329a6004df
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the heuristic findings. This indicates a phishing attempt designed to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/roblox-drivers-upgrade-download-free-game-hack In PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-links-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/coin-master-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/roblox-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/minecraft-116-apk-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/robux-gainer_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/send-me-500-2021-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
stream_003_off00004b05.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B05 25068 bytes
SHA-256: b24ae1457ee72f7ee7994a598961f185b1f23fa144f3942ddc300945a8025e7d
font_01_sfnt_off000084b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84B5 19568 bytes
SHA-256: 0fb069bb0f92394c4b3a8744643cb1232f0cb4ae1e3d49f4ed05b0a92b58e058

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