Malicious PDF — malware analysis report

Static analysis result for SHA-256 04277e744591593b…

MALICIOUS

PDF

49.0 KB Created: 2020-08-28 00:46:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e25a64613945bdf5c0d2884ff2159995 SHA-1: 7eb3051d5d629ec2ea0f8e2ad0473492b28172f3 SHA-256: 04277e744591593b93235e1129d138919e00e2ebaf944098637ff0a6fdd8fb32
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though partially corrupted, includes the same URL, suggesting a lure for users to click on malicious links. The presence of a large number of external PDF links further indicates a link farm or SEO manipulation tactic to distribute malicious content.

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=dise%25C3%25B1o+de+modas+bocetos In PDF document text
    • http://files.agnihealth.org/uploads/1/3/1/4/131438639/3028161.pdfIn PDF document text
    • http://powini.ehgbooks.com/uploads/1/3/1/6/131636664/vasilipexetif-dilore-jizemudosuwu-rizoborosuvos.pdfIn PDF document text
    • http://files.miainthelight.net/uploads/1/3/1/0/131070398/3d6face3.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/1/0433/0009/4112/files/pojekabudajegotugezamul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84113106953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1500/1496/files/94115106391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2689/8344/files/686547572.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7618/1400/files/ranorufuxovozexesuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0463/2998/files/remington_pharmaceutical_sciences.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5879/7471/files/kinematics_motion_graphs_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53940500656.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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A65 5308 bytes
SHA-256: 78e83bcbc1160ddd93220f07b0136cceca0d2d49431415614301e1ed158aae7a
font_01_sfnt_off00007c18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C18 11096 bytes
SHA-256: fc09cb49a0b7fee2d89b61e6e1e5f9fa7a0b516b79ed5b355fb7d1f04200a064
font_02_sfnt_off0000a055.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA055 16076 bytes
SHA-256: 58ab0355b12e7deceedda9b43bc31de04a7630cd803884eb04189384e4c03267

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