Malicious PDF — malware analysis report

Static analysis result for SHA-256 4717371e7713df8c…

MALICIOUS

PDF

33.9 KB Created: 2021-07-08 05:29:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2ab37eba0ec2ab15f937eadfa9914dcb SHA-1: 59933e4d9c30a11fe4a3e740c8c2d96915babfaf SHA-256: 4717371e7713df8ccb4a227a0284be6023ae6326578641a4a50e1f0e7e973146
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a known malicious redirector, specifically http://netcdn.tw/app/431946152/www-robux-us-game-hack. The document body and extracted URLs suggest a lure for game-related cheats or currency, indicating a phishing or scam attempt. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence score support the malicious verdict.

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.tw/app/431946152/www-robux-us-game-hack In PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/free-roblox-gift-card-codes-2021-december_GM431946152.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/robux-earning-sites_GM431946152.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/roblox-hack-gamepass_GM431946152.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/tiktok-free-folowers-4tiktok-site_GM835599320.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/robux-hack-artmoney_GM431946152.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/roblox-dragon-ball-rage-stats-hack-site-v3rmillionnet_GM431946152.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-december-2021_GM431946152.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-real_GM431946152.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/free-robux-live_GM431946152.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/free-robux-please_GM431946152.pdfIn PDF document text
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/free-op-minecraft-servers_GM479516143.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_off00002f77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F77 21932 bytes
SHA-256: 14b76e8923b3212a342327f5b1a38d4916e8d1f9de4b2374b0b23901e7ca7220
font_01_sfnt_off00005fc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC3 18912 bytes
SHA-256: 0e177dc6d7327f99079d6758304f8944afc6a84bcb6e124b295fb9e4e885468e

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