Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e930d151c6e8e63…

MALICIOUS

PDF

35.5 KB Created: 2021-06-23 06:37:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d3ebabf7152849afad4344f2b3182068 SHA-1: dc22ad82320fe65b89a26f6afe8d0273d5cb1634 SHA-256: 2e930d151c6e8e63ab55a1cbd310f7a0ee8b452390e4cee4d83871ac2d73e1f9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising free game hacks and generators. The ML classifier strongly flagged this PDF as malicious, and heuristic rules identified it as a redirector lure. The embedded URLs likely serve as the initial lure to download further malicious content or lead users to phishing 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/best-meme-tshirts-on-roblox-free-game-hack In PDF document text
    • http://library.yamasi.ac.id/repository/roblox-4all-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/pokemon-go-free-friend-codes_GM1094591345.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-cards-hack_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/como-descargar-roblox-gratis-y-hackeado_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/pokemon-go-free-move_GM1094591345.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/robux-free-co_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-strucid-battle-royale-aimbot-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/tiktok-free-fans-and-followers_GM835599320.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-free-install_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/roblox-jailbreak-hack_GM431946152.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_off00003213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3213 22632 bytes
SHA-256: fd008ba52b9703e947676de9baa4440166094e77509670efce5840f2b41adcac
font_01_sfnt_off00006490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6490 19496 bytes
SHA-256: f718aa899280dbd1a87b9ff110b655bf640406851ad555e3f10a567cefa4818e

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