Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3bf5e9ce89d6b4a…

MALICIOUS

PDF

39.3 KB Created: 2020-08-12 08:40:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3bbd6644491d8a50cba5eaf7c5816aa3 SHA-1: 435587fef5375ada06fda2fe714241bfe8623b15 SHA-256: c3bf5e9ce89d6b4a8b16893c1267135c5678ae3672a1c68666153003b36be35b
194 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic firing indicates a direct link to a known malicious redirector at 'https://ttraff.com/pify?keyword=determination+of+iodine+value+experiment+pdf'. While many other links point to benign Shopify domains, the presence of the malicious redirector is a strong indicator of malicious intent. 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=determination+of+iodine+value+experiment+pdf In PDF document text
    • http://files.woodlandstuition.com/uploads/1/3/0/7/130775952/wekozivi.pdfIn PDF document text
    • http://zokesul.familyconstellation.net/uploads/1/3/1/6/131607600/5622141.pdfIn PDF document text
    • http://files.approachapparel.com/uploads/1/3/1/3/131383664/8009279.pdfIn PDF document text
    • http://files.mknutritionsystems.com/uploads/1/3/1/3/131383924/2703736.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/1/0436/2030/3006/files/12092210711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78986196578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/basic_linux_commands_for_freshers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0873/6936/files/typing_agent_hacks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6503/9261/files/xiponunusojetifekorosipom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/automobile_engineering_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5373/6351/files/lawekowejokonus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5653/7495/files/nijubimifutavolidepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4948/3426/files/tecumseh_engine_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1883/0503/files/88986634892.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 8

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_off00005c47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C47 5136 bytes
SHA-256: 3a71e467c6409dba42f909cc386ef6c4bbf2afacfbf7903ec00a1e1220ce1625
font_01_sfnt_off00006db2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB2 10080 bytes
SHA-256: 76093486b28e27809a7373b2f31dfab513ca4c0653cb0f95f23e5b55392b0af5

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