Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd14110598a33a06…

MALICIOUS

PDF

33.4 KB Created: 2021-06-20 01:26:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 4b61ec5ce8aacdf2ced9e00a902ecaa7 SHA-1: 9a4b081a77ee0facc14541b2ac00767afe7a7cd2 SHA-256: dd14110598a33a06cdfb7dfbb8671eed1b5311fc0ab67b28e39737c9a1a881d5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector domains, masquerading as game hacks and generators. The primary lure, 'Roblox Build To Survive Zombies Cheats', directs to a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering attack aimed at driving traffic to potentially malicious sites, likely for further payload delivery or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/roblox-build-to-survive-zombies-cheats-game-hack In PDF document text
    • http://suaedy-library.net/repository/coin-master--hack_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-roblox-pin-codes_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/best-discord-server-for-free-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-roblox-templates_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-free-link-app_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/what-is-the-free-robux-code_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/easiest-way-to-upload-audio-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/invisibility-hack-roblox-jaulbreak_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/i-got-hacked-on-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_off00002a87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A87 22224 bytes
SHA-256: 40fc174dd99190338ba1bc35e7297ff11c77b510c13d460b6442d1f49bea60ef
font_01_sfnt_off00005bdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BDD 19656 bytes
SHA-256: 1d95611cd058923edaa6f0bc52b66e67494f6d76315b1d88929895c88c07eb4a

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