Malicious PDF — malware analysis report

Static analysis result for SHA-256 000a84ace24b0857…

MALICIOUS

PDF

54.3 KB Created: 2020-08-24 06:31:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b87c4eeae9b97b7ef34367cdd468f3cc SHA-1: 369fcfd91cd81a0e636bdce03853c1f3c1dd37b4 SHA-256: 000a84ace24b08576bb36dd4958fbba994ac51c7f993e4cdf227b0d234efa759
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, including one to a known malicious redirector at 'https://ttraff.ru/pify?keyword=canela+de+velho+extrato+seco+pdf'. This redirector is likely used to obscure the final destination, which is probably a phishing or malware distribution site. The presence of many links to Shopify PDFs suggests an attempt to create a link farm for SEO manipulation, potentially to improve the ranking of the malicious redirector.

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=canela+de+velho+extrato+seco+pdf In PDF document text
    • http://files.theschoolofmakingthinking.com/uploads/1/3/0/9/130969334/3702415.pdfIn PDF document text
    • http://files.sfcnewhire.com/uploads/1/3/1/3/131380482/fikux_wuwit_mobulida_fowad.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000766d.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000766d.bin)
    • https://cdn.shopify.com/s/files/1/0433/7349/4430/files/67382811197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4291/2926/files/uttar_kand_ramayan_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8738/1155/files/jaridilezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0805/5720/files/liquid_diffusion_coefficient_lab_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/vepegubegufegiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/lunumasogimamiminajifaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6017/4754/files/30209347723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4133/6989/files/exercices_sur_l_etat_de_rapprochement_bancaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9978/3319/files/rodore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4523/9456/files/academic_book_review_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5206/3125/files/blade_runner_putlocker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/6195/4971/files/sindrome_ataxia_telangiectasia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7899/1520/files/91169072627.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://dejavu.sourceforge.netIn extracted file (stream_005_off0000afd5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_005_off0000afd5.bin)
    • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off0000766d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000afd5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xAFD5 17788 bytes
SHA-256: bc3fe54e2f1dee6e00dc8f9d75187726d9e3ba1b91bc05be3a566acbe28c6ec3
font_00_sfnt_off0000766d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x766D 5276 bytes
SHA-256: 2060d74049c7ac538cf60f81b7d7a9101c9ec53043284531076e2fd70229d1bc
font_01_sfnt_off00008863.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8863 13200 bytes
SHA-256: 2cb6174c29a1c56ee1c7cc947c090b4fc56ac83754fa8d4b6fdc8fb3ddad60a4