Malicious PDF — malware analysis report

Static analysis result for SHA-256 29b0b35deb489aa2…

MALICIOUS

PDF

36.3 KB Created: 2021-06-27 17:00:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8d433c688c1cc57dc0da75c3dcab03ab SHA-1: e84bbd7b9b2d243e11d04cedd9b42522a4b5a36d SHA-256: 29b0b35deb489aa2361f6c9577ddb1ff460d7143cccd95fd95e3c9af1d769f26
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and lures users with promises of free Robux or game hacks. The ML classifier strongly indicated maliciousness, and the embedded URLs suggest a phishing or scam attempt. While no scripts were extracted, the document's structure and content point towards a social engineering attack designed to trick users into visiting malicious 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/free-robux-limited-time-offer-game-hack In PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/free-robux-ohne-veriefizierung_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/free-robux-no-survey-no-download-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/roblox-free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/free-robux-no-verify-no-download_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-method_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/cute-animal-outfits-roblox-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/roblox-vehicle-simulator-cheats_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/how-to-hack-into-a-account-in-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/free-roblox-promo-codes-december-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/youtube-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/free-robux-easy-to-get_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/minecraft-free-download-android_GM479516143.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_off0000355c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x355C 22596 bytes
SHA-256: af5f03101adc4f930189af9f47d10cbf1791c1ad731edf8f14bc6bf81895e76a
font_01_sfnt_off00006806.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6806 19376 bytes
SHA-256: fa021776aa7f4547c00c13aae2e92311598e54f1de6bb7ea92c73b78e76ff951

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