Malicious PDF — malware analysis report

Static analysis result for SHA-256 a034216d6fab5414…

MALICIOUS

PDF

43.2 KB Created: 2021-05-14 12:27:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 1b36360e50498ccc9ed6e8e8749061a0 SHA-1: 76584a84dcdd28d7ebae3df742f68db45e0a8116 SHA-256: a034216d6fab541465cd8a0e246e71d162df2bb2cff75d9d06cc48a09a99f824
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to potentially malicious infrastructure, masquerading as game hacks or free generators. The primary lure URL is https://netcdn.xyz/app/406889139/coin-master-fun-free-spins-game-hack, which is flagged as a malicious redirector. The document's structure and embedded links suggest an attempt to trick users into downloading further malicious content, likely a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-fun-free-spins-game-hack In PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/roblox-microsoft-rewards_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/wurst-client-18-9_GM479516143.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/hack-the-coin-master_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-hack-tool-without-human-verification_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-time-hack-2021_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/free-flip-master-coins_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-free-gold_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/free-pet-food-for-coin-master_GM406889139.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_off00004ad4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AD4 26876 bytes
SHA-256: b1235f61b6f425dceffadc01eb8001bb07740f1f8eec201bb251ec6d104b43bf
font_01_sfnt_off0000873d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x873D 18028 bytes
SHA-256: b886d19e0857ddff44b85450f57c8c2707e7243da381be74ba2c44e7741ea293

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