Malicious PDF — malware analysis report

Static analysis result for SHA-256 367583666a13ef91…

MALICIOUS

PDF

34.7 KB Created: 2021-06-19 10:41:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9d597b4bffea8a6acb630c0fe91dd4ea SHA-1: 2ae081558febc82e14966ac8cde4f2f2ff7e3144 SHA-256: 367583666a13ef9107f1e7da4d959148213733de3e61b349450b1b1fd59e5a03
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including a known malicious redirector at http://netcdn.co/app/431946152/pet-simulator-roblox-cheats-game-hack. The document body and heuristics indicate a lure for game cheats, likely intended to lead users to a phishing or malware download site. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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/pet-simulator-roblox-cheats-game-hack In PDF document text
    • https://art-concept.gr/images/free-robux-gen-no-human-verification_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/roblox-free-toy-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/free-robux-enter-password_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • https://art-concept.gr/images/how-to-get-free-robux-no-inspect-or-hack_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • https://art-concept.gr/images/how-to-get-free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://www.art-concept.gr/images/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.art-concept.gr/images/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/game-that-accually-gives-free-robux_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/make-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/coin-master-free-coins-and-spins-online-tool_GM406889139.pdfIn PDF document text
    • https://art-concept.gr/images/free-roblox-card-codes-not-expired-2021_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/robux-hack-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/free-black-t-shirt-roblox_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
font_00_sfnt_off00003099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3099 22116 bytes
SHA-256: 2d7d643246125539a97cc9436a76d4e80c42e9afeb50b9335e26d6562a5fce88
font_01_sfnt_off0000618f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618F 19428 bytes
SHA-256: b0f8aeae948ef07331c07132c160d5f0944c6da33dc4313211333addbad26462

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