Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca030358ec095edd…

MALICIOUS

PDF

34.0 KB Created: 2021-06-28 08:55:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 6322649f06b6d00fd696edbb8908f149 SHA-1: 8565fb0d9441153c84a37097f00b7e1048af092e SHA-256: ca030358ec095edd4542063042639dfb4b365a71cfae19164ff6c3799a6fdabe
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to known malicious redirectors, disguised as generators for popular games like Roblox. The heuristic firings indicate that this PDF is designed to lure users into clicking these links, likely to download further malware or engage in scams. No scripts were extracted, but the embedded URLs and the nature of the lures strongly suggest a malicious intent to redirect users to potentially harmful content.

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/roblox-rub-hack-generator-no-survey-game-hack In PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-free-robux-unlimited-robux-and-tix_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-stuf-roblox-store_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-bugatti-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/pokemon-go-free-bot_GM1094591345.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-free-codes-jailbreak-for-money_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/cheat-roblox-one-piece-wrath_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-blox-piece-script-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/greenlegocats123-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/boku-no-roblox-remastered-level-up-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-hack-roblox-servers-2021-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-hack-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-be-a-real-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/game-kit-free-800-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-donloaden-free_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/minecraft-windows-10-free-code_GM479516143.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_off00002d71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D71 22348 bytes
SHA-256: 38604bdedebb647db4cbc6ddee558b2f83b2a6064ac2c5b37d9dc90560dc4cea
font_01_sfnt_off00005f44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F44 19196 bytes
SHA-256: 47a367ab33ec69b87d572a798c4a5a6737a15144fe95f4142d25b050a3d44bd7

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