Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a2ed23bd099a6e1…

MALICIOUS

PDF

48.6 KB Created: 2021-06-08 11:16:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8102ec9eacebd382bd3e46d67099add4 SHA-1: 752a26b3e8f846b5026345d3bf26730075375306 SHA-256: 6a2ed23bd099a6e19734b3a4dc1ea3b18364d86f600799f69e151c4c0bae879e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, specifically advertising 'free generators' and 'game hacks'. The primary redirector URL is https://netcdn.tw/app/431946152/indidojoe-robux-hack-game-hack. The document body, though heavily obfuscated, contains references to these lures and additional URLs that likely serve as landing pages or further redirection points. The presence of these links and the ML classifier's high confidence score indicate a malicious intent to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/indidojoe-robux-hack-game-hack In PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/mcpe-optifine_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/hack-game-roblox_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/robux-cheat_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/ultimate-driving-roblox-cheat-speeding_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/mosttechs-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-get-free-robux-using-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/is-roblox-free-on-nintendo-switch_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.communes.comIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005220.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5220 25708 bytes
SHA-256: cc995cbe9b05c92a6e100133bc403cf391ea9cde4d3664d4cbc9c7bc15380400
font_01_sfnt_off00008e07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E07 3500 bytes
SHA-256: e49a868379cd3c37e631c5a53c010e21f38d803532a2b8417aee82315d4e8634
font_02_sfnt_off000099a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99A9 18728 bytes
SHA-256: 0e113f898f823586cf1fcade506ac972548138fd16acafac2432c638d2935bef

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