Malicious PDF — malware analysis report

Static analysis result for SHA-256 23a1d111b13ecfa0…

MALICIOUS

PDF

43.1 KB Created: 2020-08-25 22:42:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 657b60c2993c7b0e8d0d851fa258aed5 SHA-1: 87f65db97428eddc8b802fbbecd7b51f4f69ce29 SHA-256: 23a1d111b13ecfa008e0492ef256e3af4abb4f367aad04f2b7ba63ce1a5a5cec
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-Override T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external links, with the primary one leading to a Shopify domain. The document body contains the malicious URL and several other PDF links, suggesting an attempt to lure users to malicious or deceptive content. No scripts were extracted from this sample.

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=permittivit%25C3%25A9+di%25C3%25A9lectrique+du+vide In PDF document text
    • http://files.keenbeancoffee.com/uploads/1/3/1/3/131381046/91da89d19.pdfIn PDF document text
    • http://fabiji.mammothrefined.com/uploads/1/3/0/7/130776279/renabudemokibev.pdfIn PDF document text
    • http://fifobodub.doulasofomaha.com/uploads/1/3/1/4/131437812/9735949.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/1/0429/7313/5011/files/sivanamowanuwerug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7745/1428/files/95150933603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4146/3204/files/93706993739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2149/2643/files/89062737770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3569/5016/files/valquirias_paulo_coelho_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7091/4717/files/lipodogik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/liwisubusamepumiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1060/3677/files/92663780767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/91489653134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7610/8956/files/wuwojatokivapat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/suziwevigijekuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0006/2367/files/possessive_nouns_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5112/1820/files/printable_community_service_log_sheet_for_court.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/bol_bachchan_full_movie.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 4

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_off00006654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6654 5028 bytes
SHA-256: 4c6dff9e997b367e7fd129f6f4f073d5eec8ca8ad9b03afba6cb750c6efe4a4a
font_01_sfnt_off0000770b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x770B 11980 bytes
SHA-256: 0e33ee49be3b94474f4ad0e0de4de9f619323004adc7cde985a928ca43ac019f

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