Malicious PDF — malware analysis report

Static analysis result for SHA-256 329684aa31638ed8…

MALICIOUS

PDF

41.8 KB Created: 2021-05-10 16:32:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8155893c9001a01c8208731e9dd2eea5 SHA-1: 55803f5ab92aee18ede2d4a4cb0d94b638540c58 SHA-256: 329684aa31638ed8368f20348c8cc4c92f09ddb906674a188139d9dcdc90c60a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with game-related hacks, indicating a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. Although no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest it's designed to lead the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/coin-master-coins-hack-game-hack In PDF document text
    • http://sman1negara.sch.id/new/public/ckfinder/userfiles/files/free-vpn-for-minecraft_GM479516143.pdfIn PDF document text
    • http://sman1negara.sch.id/new/public/ckfinder/userfiles/files/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://sman1negara.sch.id/new/public/ckfinder/userfiles/files/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • https://sman1negara.sch.id/new/public/ckfinder/userfiles/files/roblox-cheat_GM431946152.pdfIn PDF document text
    • https://sman1negara.sch.id/new/public/ckfinder/userfiles/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://sman1negara.sch.id/new/public/ckfinder/userfiles/files/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • http://sman1negara.sch.id/new/public/ckfinder/userfiles/files/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • https://sman1negara.sch.id/new/public/ckfinder/userfiles/files/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • https://sman1negara.sch.id/new/public/ckfinder/userfiles/files/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://sman1negara.sch.id/new/public/ckfinder/userfiles/files/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • http://sman1negara.sch.id/new/public/ckfinder/userfiles/files/roblox-lawsuit_GM431946152.pdfIn PDF document text
    • https://sman1negara.sch.id/new/public/ckfinder/userfiles/files/coin-master-free-cards-hack_GM406889139.pdfIn PDF document text
    • https://sman1negara.sch.id/new/public/ckfinder/userfiles/files/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://sman1negara.sch.id/new/public/ckfinder/userfiles/files/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://sman1negara.sch.id/new/public/ckfinder/userfiles/files/coin-master-homepage_GM406889139.pdfIn PDF document text
    • http://sman1negara.sch.id/new/public/ckfinder/userfiles/files/how-to-get-free-chest-in-coin-master_GM406889139.pdfIn PDF document text
    • http://sman1negara.sch.id/new/public/ckfinder/userfiles/files/pro-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://sman1negara.sch.id/new/public/ckfinder/userfiles/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • https://sman1negara.sch.id/new/public/ckfinder/userfiles/files/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • https://sman1negara.sch.id/new/public/ckfinder/userfiles/files/robux-in_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
stream_003_off00004aae.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AAE 24432 bytes
SHA-256: 079aaad2755f7ca37233fd185e0d98950537df550ca6e38aa643b04bf2755b47
font_01_sfnt_off000082c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C3 17716 bytes
SHA-256: c15a8689411d8cca9ab0759ab4c496fe9b4353d676dd738e300719e9588112ed

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