Malicious PDF — malware analysis report

Static analysis result for SHA-256 63fd8e31d46df9b1…

MALICIOUS

PDF

36.2 KB Created: 2021-06-27 05:50:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 381d3e8627162977396ceb88e299827a SHA-1: 6fa46911611e28a4b079ac19aa7ee6d850d1d3a3 SHA-256: 63fd8e31d46df9b1ef3563375a5e5b56afc7ca994e45985d9e27e1a0bf772399
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to a known malicious infrastructure, specifically advertising game hacks. The document body and heuristics indicate a lure to trick users into visiting a site that likely hosts further malicious content or exploits. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

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/hacks-for-roblox-that-arnt-pachted-2021-game-hack In PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/www-coin-master-hack-com_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/is-tiktok-free-on-voxi_GM835599320.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/hackear-coin-master-android_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/free-fire-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-free-spin-generator-without-human-verification_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-hack-using-lucky-patcher_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/minecraft-116-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/free-coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/free-robux-trackid-sp006_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off0000337f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x337F 22728 bytes
SHA-256: 271408a64fbafb97fe8cdd03f899ac27d0e9864f65f3f46d2f4a0332bdfc5bb0
font_01_sfnt_off0000665f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x665F 19820 bytes
SHA-256: 8a219da509c3735accad1b268c9448fce791a45af5a569758f3f2611ab101f2f

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