Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ef8f72afedde36c…

MALICIOUS

PDF

54.1 KB Created: 2020-08-01 17:36:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 873dcb8083bd2896fe0834a82b46c51b SHA-1: d56f293f1ece163c4f7791ca5d5b1edb6961678b SHA-256: 9ef8f72afedde36cc212b2a2c9d431fe0b3893b3de59aee732047e7e898251bc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=can+you+get+banned+off+discord', which is flagged as malicious. The presence of a link farm suggests an attempt to distribute malicious content or engage in SEO poisoning.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.com/pify?keyword=can+you+get+banned+off+discord In PDF document text
    • http://files.kdhodges.com/uploads/1/3/2/7/132740321/5360778.pdfIn PDF document text
    • http://files.somethingsoldsomethingsnew.com/uploads/1/3/1/4/131409333/relaxajuliso.pdfIn PDF document text
    • http://files.dudleyfoundation.org/uploads/1/3/0/7/130775200/sekux.pdfIn PDF document text
    • http://files.vtube-imc.com/uploads/1/3/1/3/131383953/8365f1c4d73cd9c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32878299647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1292/2264/files/mirubukilireroso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5221/1099/files/74109586312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6825/2565/files/19757345827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3415/6967/files/3653608300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/12102629374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1952/5531/files/konudoxavivikojemuxajufoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bisadugizutojaririxenudep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7918/8118/files/kill_all_node_processes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3335/3627/files/ranotepewuvilumosogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7541/9798/files/89431575294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5654/6467/files/57602252110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5498/0520/files/webiz.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007fdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FDC 5304 bytes
SHA-256: f41c49fd90576a265beb58d4a9ae1fc7ac6ef33f51f93890887440327011019f
font_01_sfnt_off00009200.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9200 10624 bytes
SHA-256: 571658b7237c6a05d1a78f291bbae90f6de09fc5ae1ec9828e4da7725cfb7aac
font_02_sfnt_off0000b67d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB67D 16060 bytes
SHA-256: 313c3940a6f4aae92ceaa1b1a843de6e6f13411355a457aba6e018c383fce54c