Malicious PDF — malware analysis report

Static analysis result for SHA-256 4096701d4d046336…

MALICIOUS

PDF

36.7 KB Created: 2020-09-13 13:24:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59e67f7f5d471158478d5aed34d1a3fd SHA-1: 0bc30e8082af541a076a6dd9fcff61c8eda08f6e SHA-256: 4096701d4d046336ee47bff6509997d29e99c9081c183eb2e172d672cf701ddd
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.link/pify?keyword=sopa+de+letras+para+adultos'. This URL is embedded within the document body, suggesting a social engineering lure. The document also contains a large number of external PDF links, many hosted on suspicious domains, indicating a link farm for SEO manipulation or further redirection. The primary malicious IOC is the initial redirector URL.

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.link/pify?keyword=sopa+de+letras+para+adultos In PDF document text
    • http://jikuwe.ndglc.com/uploads/1/3/1/4/131437318/6f1e636.pdfIn PDF document text
    • http://files.jlkhanna.com/uploads/1/3/1/0/131070112/ragakupede.pdfIn PDF document text
    • http://dubove.holytrinitydaphne.org/uploads/1/3/1/4/131453872/11404.pdfIn PDF document text
    • http://fulujov.agnusdeiministries.org/uploads/1/3/1/8/131856570/4ea77d4bb66b.pdfIn PDF document text
    • http://rakavaru.susanmccrae.com/uploads/1/3/0/7/130740316/puxurut_resatabe_sesibumet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/c450b2_713f69bbb9e84562b1e4508349ff06aa.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d9d1f5_6430d644bbc14950845ee36db6163b58.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bf07b1_df88832cbe324d3b959613ba92e5c68e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5ecadc_ae75885caa0b424dacb9caf3936abe17.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/54bec1_9ad43e5482ec43fdb62a7d1ad2872421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5391/6053/files/75784557513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4618/1787/files/gosiviruvigofepuwirobuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/3809/7817/files/85961847159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2358/0830/files/lofosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6763/7917/files/dazale.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 3

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_off00005162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5162 5056 bytes
SHA-256: bc5c4c8085edb9d8a259882325810f159af9b922898622c96e791183734d8e60
font_01_sfnt_off00006298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6298 10444 bytes
SHA-256: 5715d7d4972479e561aed2e275edd4fa6e149e6ffdfb4d0376fffdf66f046563

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