Malicious PDF — malware analysis report

Static analysis result for SHA-256 eebf9ad6a0efc4ce…

MALICIOUS

PDF

74.9 KB Created: 2020-07-29 16:42:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 508a8cee38c40f6e3e4f209f171d4400 SHA-1: 4015b20281585a83e8448cccf508bd3ecc4b9b17 SHA-256: eebf9ad6a0efc4ce2e0120f5bdc2386ffc264d616e3ffc62e3953be7ca40b56a
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with the primary link directing to a known malicious redirector. The document body, though heavily obfuscated, appears to be related to 'ceramic composite materials', likely serving as a lure. The heuristic firings indicate a malicious redirector and a link farm, suggesting the primary goal is to drive traffic to malicious sites.

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.ru/pify?keyword=ceramic+composite+materials+pdf In PDF document text
    • http://files.shawnaughtydesignz.com/uploads/1/3/1/3/131383383/xujikuwivisoro-budagoj.pdfIn PDF document text
    • http://files.jmkuztomz.net/uploads/1/3/2/7/132712333/9715006.pdfIn PDF document text
    • http://files.jciitaly.org/uploads/1/3/1/4/131438639/kenizujume.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/1/0432/2007/4663/files/32973707881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6191/9390/files/7086988475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6249/1286/files/21134987227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8875/6384/files/pufobenilituvib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9559/5938/files/zalidifafikesijibupinaxup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4645/8776/files/raxodinatubolozudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9538/3446/files/6501496072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36726725464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6246/8503/files/famixetesuvesokojejawab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lokilus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2583/3884/files/74740407787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9411/4465/files/83014739499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/36608698408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4665/8463/files/54771490853.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 3

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_off0000e8fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8FD 5008 bytes
SHA-256: 32b34c250f5e60efa010487b54e1942c261ffc402c4e2a66fe0240100e6cbffc
font_01_sfnt_off0000fa00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA00 10560 bytes
SHA-256: 78bce9dc3682128c0932a4243c3e05b5942640995ccc3ec73b6e8d615e85a9e9

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