Malicious PDF — malware analysis report

Static analysis result for SHA-256 80258151c8dfabd5…

MALICIOUS

PDF

43.5 KB Created: 2020-09-20 10:31:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dc552b9c06384438ea78d5e1d60b404f SHA-1: 5bc211e4174aade8012f94d4a13c5126efe4d377 SHA-256: 80258151c8dfabd529d6845a0dc3057eea3bf3e253cfd79ea5c10769185a1228
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service designed to lead users to malicious content. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a lab manual, suggesting a phishing or scam attempt. The ML classifier strongly indicated maliciousness, and the presence of redirector links confirms a malicious intent to direct users to harmful 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.me/wix?keyword=human+anatomy+and+physiology+lab+manual+marieb In PDF document text
    • http://kixinu.hypnowellbeing.co.nz/uploads/1/3/0/7/130776716/ac97cfd2c02.pdfIn PDF document text
    • http://mupud.elisabeautystore-agency.com/uploads/1/3/1/8/131857090/pikeweb.pdfIn PDF document text
    • http://pukedovak.wilesmenschla.com/uploads/1/3/2/7/132740280/2086837.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/1/0448/3586/4736/files/search_only_fors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5063/1319/files/19250676283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8699/3813/files/72154181844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0186/2554/files/8728484958.pdfIn PDF document text
    • https://7496f85d-e4d5-4ca8-b1dd-da3677118b0a.filesusr.com/ugd/c57cae_3411b4ade2d44ca59859846f6e6457b3.pdf?index=trueIn PDF document text
    • https://8a6b9d7e-2b5e-4548-a354-4528039fbe21.filesusr.com/ugd/98d639_4919f069b9ee418aba50cb735e4598c0.pdf?index=trueIn PDF document text
    • https://3333e3b7-93e2-4910-ac74-c1755dfb4a03.filesusr.com/ugd/622218_5d083835e8644674820772b9ebefde60.pdf?index=trueIn PDF document text
    • https://0ee687c2-c75f-43ad-9618-7c82338d6b6d.filesusr.com/ugd/c33cdb_acaf3b4a1f2c4936885289f1e020a54b.pdf?index=trueIn PDF document text
    • https://2d40cefa-6750-4d30-ab64-09ead755b15a.filesusr.com/ugd/6cabbb_7f6ca53326d64c6f953311a9afbf879c.pdf?index=trueIn PDF document text
    • https://c0c46580-2bc3-44c3-a94f-411330cf27d5.filesusr.com/ugd/39cb9d_9032336dd66648b5963e60df161e4693.pdf?index=trueIn PDF document text
    • https://7111bb44-52fd-454c-a69a-ee7d63fcfc24.filesusr.com/ugd/733c1f_26f87815f24d4e138a7c97b0bd63c708.pdf?index=trueIn 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 1

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_off000067f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F5 5576 bytes
SHA-256: df8200e9e9d6901aac9883eaeeadb97faa3ee3cca80c26fdfe55ccfdcb97add6
font_01_sfnt_off00007abf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABF 10604 bytes
SHA-256: a9a27ed5402a598b3b64e20a1ba3034daa0ce0eddf1036db47aaf30c56cd8bef

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