Malicious PDF — malware analysis report

Static analysis result for SHA-256 56e982d3e6bbb556…

MALICIOUS

PDF

37.4 KB Created: 2021-06-29 02:55:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 5c10a09024ed6c5bd2f7fdc63dd514f0 SHA-1: ae54f8c8b78e30abd8fb8a3f0575ab6712c7d1f3 SHA-256: 56e982d3e6bbb5567392751f1b398d7df1f7c7ac7559772ca0de62452ef5e26d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and domains, disguised as "game hacks" and "free generators". The primary link, http://netcdn.co/app/431946152/how-to-hack-in-roblox-dragon-ball-rage-game-hack, is flagged as a malicious redirector. Although no scripts were extracted, the PDF structure and embedded URLs strongly indicate a phishing or malware distribution attempt, likely initiated via spearphishing attachment.

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/how-to-hack-in-roblox-dragon-ball-rage-game-hack In PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-tycoon-model-roblox-with-dev-purchases_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-roblox-cards-pin-number_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/best-free-roblox-plane-game_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-minecraft-com_GM479516143.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-roblox-gift-card-pins-2021-august_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/hacker-roblox-bob-esponja_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/youtube-how-to-hack-robux-within-a-couple-of-secound_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/roblox-free-cat-tail_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/roblox-promo-codes-2021-free-robux_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 3

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_off00003c7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C7A 22192 bytes
SHA-256: d1baa6cfe67d2ccbd4cf15a85b7420ce853ffdad136ce7be1419eff4ff3a10b3
font_01_sfnt_off00006d71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D71 18988 bytes
SHA-256: d89c2f9531926b0ab25912b4ebd5b6c16465c7b0c94cfb80a88f656b8504fb4d

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