Malicious PDF — malware analysis report

Static analysis result for SHA-256 98804ff5c9099ef5…

MALICIOUS

PDF

42.9 KB Created: 2021-05-19 04:49:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a0ed584211c9e818b3724430ed53c89a SHA-1: 659b66ede63cdf980677466f40a2f5a2608a19ee SHA-256: 98804ff5c9099ef563b0dadb2d91f053b0bbd499aae24cf259aeea31bab7765f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector pointing to 'free-minecraft-server-hosting-with-plugins-game-hack'. The document body, though partially corrupted, suggests a lure related to game hacks or generators. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent, likely to redirect users to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/479516143/free-minecraft-server-hosting-with-plugins-game-hack In PDF document text
    • http://www.marambio.com.ar/images/free-robux-website_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/coins-master_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/coin-master-code-for-free-spins_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/roblox-generator-com_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/coin-master-heaven-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/hack-the-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/coin-master-free-spins-that-really_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://www.marambio.com.ar/images/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • https://code.giftcards.comIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004aad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AAD 25036 bytes
SHA-256: 5ed8ec34ddee28b2efb978bbe3f4acdcf670c7c00ce72f50c942328b51bb2b4d
font_01_sfnt_off00008406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8406 18844 bytes
SHA-256: acfaf3ec89f3d6287f10dcf224a7b6ca2fa14913dee94becfc4eecdab87a7a6c

Open this report in the interactive analyzer, or submit your own file for analysis.