Malicious PDF — malware analysis report

Static analysis result for SHA-256 115ced6883b876a0…

MALICIOUS

PDF

41.7 KB Created: 2020-08-04 09:50:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1efcae16db0b2b4a6ed9b70d9506aa8 SHA-1: 673d5006b847d17a4d480b0d995545b5c425a47e SHA-256: 115ced6883b876a0b6d6d33799560a1f4d9253d953e50fb0ae2831b3cfe5c22a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links to external PDFs, many hosted on Shopify, which is characteristic of an SEO link farm used for phishing. The primary redirector URL, 'https://ttraff.ru/pify?keyword=avon+catalogue+july+2020+pdf', is flagged as malicious and is presented as a lure for an 'Avon catalogue'. This indicates an attempt to trick users into visiting a malicious site, likely for credential harvesting or malware delivery.

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=avon+catalogue+july+2020+pdf In PDF document text
    • http://files.tcsocalbaseball.com/uploads/1/3/1/4/131453267/kavubejivefe_lanirukadawadu_xojofumupegorez.pdfIn PDF document text
    • http://files.eurabrownpe.com/uploads/1/3/1/3/131382387/9a7f808c.pdfIn PDF document text
    • http://files.auenpaint.com/uploads/1/3/1/3/131398479/1015468.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/1/0430/6377/1293/files/8710950213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2476/9436/files/putawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1673/3340/files/55324874392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/80521309621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9544/8997/files/wugemavuzatokapemabuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kovogosiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1743/3251/files/canticle_for_leibowitz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4537/6420/files/annotated_outline_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7231/3751/files/3494060555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8478/3509/files/jureduzebalewuxelixizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0926/9156/files/drastic_ds_emulator_apk_license_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7463/4403/files/14819801912.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 2

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_off00006462.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6462 5552 bytes
SHA-256: 1c94828706a394723340aa81b061c4bc99cef2271b96614b89692cfa08226a25
font_01_sfnt_off00007780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7780 10204 bytes
SHA-256: 6bdc6cccdf3fe8ca570e905efe8ce98705ebd8cf967caf96b103ce0950857eb5

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