Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0f05fc212c6401d…

MALICIOUS

PDF

39.5 KB Created: 2020-08-14 06:32:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03a179c7974f9e45c188be87f3d9adfe SHA-1: 1202196bab5d3ed8b3a4755642911fa7c33d1d9e SHA-256: c0f05fc212c6401d111cb11d2277f965c2cfa8f12492ba9b0f9a6cf6beff233a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a high density of external links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though corrupted, contains text related to a 'December 2018 calendar word template' and the malicious redirector URL, indicating a lure to trick users into clicking the link. The ML classifier also strongly flagged this PDF as malicious.

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.cc/pify?keyword=december+2018+calendar+word+template In PDF document text
    • http://gimela.benkiashaninka.com/uploads/1/3/1/4/131407406/3880390.pdfIn PDF document text
    • http://files.thomasmechanicaldesign.com/uploads/1/3/1/4/131453512/5962b99b3.pdfIn PDF document text
    • http://files.assureyou.org/uploads/1/3/1/1/131164260/2807298.pdfIn PDF document text
    • http://files.ossipeecentralschool.org/uploads/1/3/1/3/131384249/966349.pdfIn PDF document text
    • http://files.rewoca.org/uploads/1/3/0/7/130776607/jawonamelefo_xowavozuped.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/1/0434/3024/8600/files/58422709608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7985/files/miluwumosugot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8434/8569/files/nepoxumaxobifozowiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/xazodovawifiwowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66179678401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2670/2755/files/jopinobilixoxijedegujagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5035/2296/files/taxusamororavozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3094/4671/files/christopher_walken_hot_dogs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1737/9745/files/kajonotasanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2205/6600/files/lonuxatazopewekoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5329/2440/files/abstract_algebra_an_introduction_3rd_edition_solutions.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 6

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_off00005969.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5969 5792 bytes
SHA-256: d3d6fd9df50f2f7a69da42d91bfadb32947fc659c97760830ee7800a7bd241c5
font_01_sfnt_off00006d1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D1C 10688 bytes
SHA-256: 441775246eb11e7c6f580c15daf59a4e20c7403e766fa5f5aaf9d1ef87bc832b

Open this report in the interactive analyzer, or submit your own file for analysis.