Malicious PDF — malware analysis report

Static analysis result for SHA-256 296da83616ecd5ad…

MALICIOUS

PDF

48.6 KB Created: 2021-06-07 11:09:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7ad92743d7d83d5e4200c720aab8aa60 SHA-1: 539d86e04142afce26b8bd830481f178db9f3336 SHA-256: 296da83616ecd5ad246b97728217c34560ff9a98808709eb8b48b4fee6f6da54
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are structured as SEO link farms, suggesting a malicious intent to drive traffic or distribute further payloads. The document body and extracted URLs indicate a lure related to game cheats ('Robux Hack', 'Coin Master Free Spins'), a common tactic for phishing or malware delivery. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it's designed to exploit user interest in these topics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.tw/app/431946152/robux-hack-no-human-verification-2021-or-survey-game-hack PDF link annotation
    • http://jdlwealth.com/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/wizard-roblox-hack_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-views-tiktok_GM835599320.pdfIn PDF document text
    • http://jdlwealth.com/images/free-spin-links-coin-master-october-30-2021_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-hack-without-verification-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000509b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x509B 25404 bytes
SHA-256: d2d9dfd901ad753f94bafb6ca9f163856e69b35a4c0da83f80aae8dfe8625aa3
font_01_sfnt_off00008a6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A6A 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00009711.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9711 19560 bytes
SHA-256: d91d78083107778aa08030c96bae94f9ee157338ef9b73a01c725cbb561b2479

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