Malicious PDF — malware analysis report

Static analysis result for SHA-256 cadb297b076ccb51…

MALICIOUS

PDF

39.8 KB Created: 2020-08-23 20:07:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cec38daa77e16aae1c1677b3a2ff089c SHA-1: f0165d4a38bf932c86789fb0075fc979633762d3 SHA-256: cadb297b076ccb5109f335d4b4d2ce22896b38b6dca9975adee9f2c560f4cb00
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links and text that mimic a medical report to deceive users. The primary malicious link, "https://ttraff.ru/pify?keyword=ct+scan+head+normal+report", is identified as a redirector to malicious infrastructure. The document also contains a large number of links to other PDFs, suggesting a link farm or SEO manipulation tactic. No scripts were extracted, but the presence of malicious redirectors and the lure indicate a phishing or malware distribution attempt.

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=ct+scan+head+normal+report In PDF document text
    • http://files.thelocalovengoodness.com/uploads/1/3/1/8/131871633/rozolifalabikukojeko.pdfIn PDF document text
    • http://files.wadelightheart.net/uploads/1/3/1/4/131407278/sanidiwuwo_renig_vigiwapuvot_jabipezilape.pdfIn PDF document text
    • http://jaxim.clayartspace.com/uploads/1/3/1/4/131407164/115d9cd08ed5.pdfIn PDF document text
    • http://files.camarillochamber.org/uploads/1/3/1/4/131438899/97139404cfcb.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/1/0433/2562/0374/files/lunonokurabetoxazamatuger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9266/2688/files/body_organs_and_their_functions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/6843/2040/files/cis_hardening_guide_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/nogogufizegigadipizija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1764/9819/files/the_cask_of_amontillado_annotations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0932/5730/files/59264422266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6877/5841/files/89441887977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4836/8288/files/hope_for_the_best_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2449/9367/files/13699479361.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_off00005eaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EAA 5220 bytes
SHA-256: 6303d101ea4add7c63d6620272c857052b8f541bc2e01784a4f48a526c734034
font_01_sfnt_off0000702d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x702D 10108 bytes
SHA-256: 27677cedf559c9b4f9e230b50b500fe45e1d7fd0748150a78dc0d97404e56b4b

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