Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3b024f028d0a8aa…

MALICIOUS

PDF

45.8 KB Created: 2020-08-18 18:00:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e514cc3cd4360ce476aed4429a751e7b SHA-1: 4614b02fcd73a34d668c6d2eff22c1a5d255833a SHA-256: e3b024f028d0a8aa3a4d1037499d61408cecf74d90606853a7dbdd52e117e7ab
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, characteristic of a link farm, with a critical heuristic firing indicating redirection to known malicious infrastructure. The primary malicious URL identified is `https://ttraff.ru/pify?keyword=capacitor+value+chart+pdf`. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lure users to malicious sites.

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=capacitor+value+chart+pdf In PDF document text
    • http://luzasisoz.houseofaroma.studio/uploads/1/3/1/3/131380042/dagisapeputen.pdfIn PDF document text
    • http://files.laurenbretana.com/uploads/1/3/1/1/131164079/8500390.pdfIn PDF document text
    • http://files.mrdaviseng.com/uploads/1/3/2/6/132680926/8833029.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/1/0429/6962/8828/files/todaralofewowuzumoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1871/4264/files/o_mio_babbino_caro_scribd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2561/3475/files/metuxolepuzur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2862/8135/files/kezaduzaxom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7659/7400/files/fakatebupap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/9387/1016/files/worth_the_wait_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6787/5228/files/nonakebupimire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9770/8957/files/might_not_weeknd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/72201673290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3712/0933/files/76494648126.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_off00006a67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A67 5032 bytes
SHA-256: 1ca70a98d849608295dadfc0c4528901c224255d2f6a0c6fcf246d46e2ffdeb2
font_01_sfnt_off00007b7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7E 14240 bytes
SHA-256: 627b2a7936ccc0126f6181269345ee7af20da0cfe3dc485780b4e1395530cc69

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