Malicious PDF — malware analysis report

Static analysis result for SHA-256 880f2c4a48144737…

MALICIOUS

PDF

34.0 KB Created: 2021-06-18 08:56:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d347cf80de4a83d6bf70b06b0366fbdf SHA-1: 1b9cdfb599d13b4a5663681d81f4888a28ab9f88 SHA-256: 880f2c4a48144737f3abfd0d1964529f19cd7a6c6e6f2e8687f93c533309efac
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure, 'Roblox Render Free To Use', points to a known malicious redirector. The presence of numerous similar links suggests a phishing or scam campaign aimed at tricking users into visiting potentially harmful sites.

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-render-free-to-use-game-hack In PDF document text
    • http://gruporamos.do/images/roblox-speed-and-jump-hack_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://gruporamos.do/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://gruporamos.do/images/free-robux-zephplayz_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/wurst-client-download_GM479516143.pdfIn PDF document text
    • http://gruporamos.do/images/a-game-that-actually-gives-free-robux_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/cool-free-green-shirts-roblox_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://gruporamos.do/images/how-to-hack-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://gruporamos.do/images/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/50-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/mega-hacks-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_off00002eb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB0 22304 bytes
SHA-256: a78a7f621eb22b4c11d48529740aeeb7c3f1d777827871116306ba4f5eb8f4ba
font_01_sfnt_off00006086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6086 18824 bytes
SHA-256: 91f34dddb40fcc6b68a430c349fb6aba767a1fb89b9e9117744ab33fe2009d61

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