Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc5fa935a2ef0dc6…

MALICIOUS

PDF

49.0 KB Created: 2020-08-25 05:56:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 83bddcb6b812dd4257100388645157b9 SHA-1: e8a60d18a454dac38d4495f6ce66fabf76663441 SHA-256: cc5fa935a2ef0dc6fa2aa2a5bf9e3660b75dd9dbfa9bb0bd6f486688ddd15d54
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm. One of the primary links directs to a known malicious redirector, ttraff.com, which is likely used to obscure the ultimate destination. The majority of the links point to Shopify-hosted PDFs, forming a link farm. The document body itself is heavily obfuscated and contains the malicious redirector URL, suggesting an attempt to lure users into clicking malicious links.

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=java+apache+poi++excel In PDF document text
    • http://files.opadental.com/uploads/1/3/1/3/131379594/539cbd45a69b.pdfIn PDF document text
    • http://files.nygreenhealth.com/uploads/1/3/1/4/131406977/bodovanasesug_tekegirigexeva_ninizeda_fawomobisogu.pdfIn PDF document text
    • http://loxit.destinationhop.com/uploads/1/3/2/6/132683459/tawagazugu.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/1/0432/9911/1070/files/32150403802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/nozamulibijatalakijenofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6393/5129/files/zegogefuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2793/1034/files/18231226951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/6791/6696/files/13789863163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/1633/8838/files/calculus_1_limits_problems_and_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1465/1038/files/70927410369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1603/6257/files/black_hearted_song_mr_jatt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7263/4533/files/wamubuxowewud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/khatia_buniatishvili_libertango.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5005/7373/files/40389611172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2970/7422/files/xegilemitikovafibu.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_off00007620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7620 4864 bytes
SHA-256: b412b591b9eb7fca032ae1d9e7c4fdba684d17c891d27307d9f0c670bb9af4a8
font_01_sfnt_off000086aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86AA 16868 bytes
SHA-256: 9f87f6d292b959396783424491f222b898a1561d43940fc9e442791dda7a1f52

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