Malicious PDF — malware analysis report

Static analysis result for SHA-256 4675f5283adcc20a…

MALICIOUS

PDF

45.8 KB Created: 2020-08-25 18:47:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ee78b46a841be0fd5cf43170b827a26 SHA-1: 5bd958f15077eb1f8b6e62a5fe400af73d26506e SHA-256: 4675f5283adcc20a97aa6902e771a0acfe9c9556f9c6cc0f5923d52ef43cf1bb
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=carb+counting+chart+atkins'. This indicates a social engineering attempt to lure the user to a malicious site. The document also contains a large number of embedded links to external PDFs, many hosted on Shopify, which is characteristic of SEO link farm abuse to obscure the final malicious destination. 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.com/pify?keyword=carb+counting+chart+atkins In PDF document text
    • http://fiwotaz.escdu.org/uploads/1/3/1/6/131606227/fujupusakevu-zimujo.pdfIn PDF document text
    • http://files.montanaredshed.com/uploads/1/3/1/3/131383478/74c70.pdfIn PDF document text
    • http://selakitig.gaiusstandardpoodles.co.nz/uploads/1/3/1/8/131871796/lebanatizapobupaz.pdfIn PDF document text
    • http://files.athleticadvantagellc.net/uploads/1/3/1/3/131383318/5c9f6881b.pdfIn PDF document text
    • http://files.tradebikes.net/uploads/1/3/0/7/130775182/lowofabis_raxurekije_kuvajewujakefa_sijikipi.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/1/0434/7658/2550/files/80417667834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6490/8181/files/missouri_river_fishing_report_sd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0163/3177/files/6893471161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1514/2567/files/public_finance_and_public_policy_fifth_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9328/7321/files/boogie_woogie_guitar_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9735/6443/files/new_york_stock_exchange_holidays_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6607/8870/files/relegukosejimixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34993807018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3731/9590/files/vivevewidesilokidaxamov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8948/5221/files/burger_bistro_centurion_menu_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8135/1839/files/52268066545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2329/3864/files/57658429270.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000752b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x752B 5136 bytes
SHA-256: c43b2f0e2e7bc45309061186ad955774e3569b2985ec95bcd7689fbb5276be67
font_01_sfnt_off0000869b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x869B 10384 bytes
SHA-256: 8fa7b55e76e0728511ae2c68b1bf1c796ebc176dd5a86e1c64501acbc2f9a9cf