Malicious PDF — malware analysis report

Static analysis result for SHA-256 f04c71e8551e0416…

MALICIOUS

PDF

42.0 KB Created: 2020-08-15 12:47:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57fc2a11a8377bfe0f74d39f76509abc SHA-1: 52cb3c1aecc8f4e3631eb4b3d603e7faa5b1224b SHA-256: f04c71e8551e0416b957843c90b91e330e9463585b1a985f418bd9f213e6fcf4
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of a link farm designed for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which is used to obscure the ultimate malicious destination. The document body, though partially corrupted, contains text related to a 'french english dictionary kindle free', suggesting a lure to trick users into clicking the malicious links.

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.ru/pify?keyword=french+english+dictionary+kindle+free In PDF document text
    • http://files.hiltonbell.com/uploads/1/3/1/3/131380177/luxaxef.pdfIn PDF document text
    • http://files.impartalliance.org/uploads/1/3/1/1/131164476/xijotadigajaxikuvi.pdfIn PDF document text
    • http://files.rainforestab.ca/uploads/1/3/0/7/130776326/7e130.pdfIn PDF document text
    • http://files.donquijotestaffing.com/uploads/1/3/0/7/130776886/1ec87fee6.pdfIn PDF document text
    • http://files.lalaluxboutique.com/uploads/1/3/1/8/131856743/3480482.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/1/0440/6745/5128/files/gta_5_mods_ps3_usb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8827/2807/files/pradhan_mantri_gramin_awas_yojana_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1478/1085/files/36058611117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/zagexunefunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4991/7347/files/zireju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0008/5160/files/jejamufowazedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5197/3794/files/kaspersky_keygen_2015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4660/7765/files/chairmanship_honor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1308/6106/files/bible_book_in_gujarati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3616/3747/files/90695818610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6104/1569/files/bomba_de_hiroshima_y_nagasaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8991/1194/files/65801447703.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DC 5404 bytes
SHA-256: 6d76686c0daa98c62c2926096fd86b46dffb4e52925ca0a70703a7af582c60cb
font_01_sfnt_off00007839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7839 10144 bytes
SHA-256: 6b900a2f337921c9c98912856ed5898fc7081372b90d459cec6f23a0e556b295

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