Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d159a80f19c5bb…

MALICIOUS

PDF

41.8 KB Created: 2020-08-09 17:38:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6adaf4c3f91e04a81d55f09819a30dd8 SHA-1: d82274a638fb42091caf9823b04ecc92c7054f55 SHA-256: c0d159a80f19c5bba769e2f7ff4a8b8c79db308e504ac138750ef1953a0893a6
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. This indicates the document's primary purpose is to lure the user into clicking a link that leads to malicious infrastructure. The document body and embedded links further support this, with a large number of links, many hosted on Shopify, likely part of a link farm to improve SEO for malicious content. 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=cfa+level+1+curriculum+pdf+download In PDF document text
    • http://files.makwawamalawi.com/uploads/1/3/2/7/132740860/zuder.pdfIn PDF document text
    • http://files.joshualively.com/uploads/1/3/1/4/131437457/5496950.pdfIn PDF document text
    • http://kemonam.molly-boone-wed.com/uploads/1/3/0/8/130814328/bosilupi_wutazuzovutiruv.pdfIn PDF document text
    • http://files.equityforeducators.com/uploads/1/3/1/6/131606186/napifafufivagov.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/1/0439/8841/8718/files/46563515946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8015/4269/files/93103185005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6043/6887/files/kuzugeturasisupunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8140/8416/files/2325829021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5461/files/lufikoweperimipuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8837/9032/files/21401648455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/94065484152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8230/7989/files/anatomy_of_liver_and_biliary_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0171/4587/files/6900569349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4581/3413/files/xisarovabiraxuren.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_off00006267.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6267 5232 bytes
SHA-256: c6723df61781a4253f8168a682f8f342e020cb9501c3126e6112235dd97de5c3
font_01_sfnt_off0000743a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x743A 10596 bytes
SHA-256: 5a39b4f2bd4d1745d0503a79f2c548d1e65d220067c4968971b73a097c85080a

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