Malicious PDF — malware analysis report

Static analysis result for SHA-256 3658e349c7755194…

MALICIOUS

PDF

46.8 KB Created: 2021-05-15 13:20:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ea8e2556c30db40c556b12035ae9a67e SHA-1: 537d97cb8962849a678833fc1400ff11382a72cf SHA-256: 3658e349c7755194a8840eb28302acc1bd7b1e731b5304c17d77a9a92644ede0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are designed to lure users into clicking on them by promising game hacks and generators. The primary malicious URL identified is https://netcdn.xyz/app/406889139/village-4-coin-master-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a phishing or redirection attack, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/village-4-coin-master-game-hack PDF link annotation
    • https://schaefer-rechtsanwaelte.com/images/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/hack-coin-master-apk-32_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/easy-roblox-today_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/get-robux-com_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/free-custom-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://coinmasterspinandcoin.comIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bd9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BD9 28284 bytes
SHA-256: 49d31a2dcd40e6089eda527f6e7f7aa44cf41c0f0308b80c7b17be022a7c8268
font_01_sfnt_off00008b70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B70 2812 bytes
SHA-256: fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f
font_02_sfnt_off00009511.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9511 18104 bytes
SHA-256: 4663c03cf6a7f36f606ed333490f7780d1655a74df360db77ae51fe1c1360529

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