Malicious PDF — malware analysis report

Static analysis result for SHA-256 724610128decfbe8…

MALICIOUS

PDF

68.4 KB Created: 2020-08-21 12:21:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0fec21033f96e100f8c9559c3bcd6d1 SHA-1: c8996e3acc16ac09579a0e86500bd1b6ced94408 SHA-256: 724610128decfbe88fa64d20cfcef7811b3a37bbe754f4c428bec6f8a10ef7f5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one to a known malicious redirector, suggesting a phishing or scam attempt. The document body and heuristics indicate the primary goal is to redirect the user to the URL 'https://ttraff.com/pify?keyword=utrack+online+gpx+track+report+generator' for malicious purposes. No scripts were extracted, but the extensive link farm and redirector usage are strong indicators of malicious intent.

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=utrack+online+gpx+track+report+generator In PDF document text
    • http://files.nasrinbakheet.com/uploads/1/3/2/8/132815220/03e4b3419d34.pdfIn PDF document text
    • http://files.heritagehighway120.com.au/uploads/1/3/2/6/132683334/9605826.pdfIn PDF document text
    • http://files.southtahoefootball.com/uploads/1/3/1/4/131483386/1239856.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/1/0434/7189/6741/files/calculations_for_a_level_chemistry_ramsden.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5747/0870/files/chinese_characters_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8425/1285/files/ruzagog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7857/2450/files/jezawabugiwivomowovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/siwapikidosubobolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3034/7938/files/palubajojowuzigatop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0563/9836/files/55119533701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/how_is_passer_rating_calculated.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8366/1461/files/11909669986.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c79c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC79C 5048 bytes
SHA-256: 1ea9812350c23ca65d1b4ef02b5d35936e4768b6b24e1536fcb112802cfa7a02
font_01_sfnt_off0000d8da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8DA 13664 bytes
SHA-256: d4b98efd4358c20471344d5c76864eb67a6432f3da8a5917eb87844d34e60277