Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd5d3044e50f514e…

MALICIOUS

PDF

43.3 KB Created: 2021-05-19 01:36:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 27deca3eb29cb8b390f9228ddfa02a88 SHA-1: b5d3f5e2f93458ce5b2b2f57b4ea35537e96f162 SHA-256: bd5d3044e50f514ea0c11e68527b81d6175f20b1d112208c2de146271c2833a7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one pointing to a known malicious redirector infrastructure. The document body and heuristics indicate a lure for game-related cheats or generators, likely intended to lead users to malicious websites. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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/1094591345/pokemon-go-free-ultra-box-game-hack In PDF document text
    • http://abris-jardin.be/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://abris-jardin.be/images/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/toolbox-mod_GM479516143.pdfIn PDF document text
    • http://abris-jardin.be/images/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • http://abris-jardin.be/images/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://abris-jardin.be/images/open-coin-master_GM406889139.pdfIn PDF document text
    • http://abris-jardin.be/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • http://abris-jardin.be/images/minecraft-client-download_GM479516143.pdfIn PDF document text
    • http://abris-jardin.be/images/robux-boost_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/coin-master-game-hack-app-download_GM406889139.pdfIn PDF document text
    • http://abris-jardin.be/images/www-roblox-robux_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://abris-jardin.be/images/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://abris-jardin.be/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/apps-that-give-you-free-robux_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_off0000489f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x489F 27128 bytes
SHA-256: 24453b230fec0eb2a938f9156e916cd6415fa80cdf22a49125b4f82a1d83e4ae
font_01_sfnt_off00008548.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8548 18860 bytes
SHA-256: 7784b1a6329408b30733fcec09f54554359a9b60fecfb66c0047c672209192c4

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