Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cd893b171097227…

MALICIOUS

PDF

59.3 KB Created: 2020-08-12 09:02:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a7ea0e8164addc2b8b8688bf268181bf SHA-1: 1a1788e6db65e33ca65fb149365e090f401863f4 SHA-256: 5cd893b17109722795e869b0f8f84209d2fc6735e0026cbfcdf1acfb0cd0612a
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, indicating a link farm designed to lure users. The primary redirector URL is https://ttraff.com/wb?keyword=pitong%20sakramento%20pdf, which likely leads to a phishing or malware distribution site. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is part of a phishing campaign.

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/wb?keyword=pitong%20sakramento%20pdf In PDF document text
    • http://files.highwayrobberyvintage.com/uploads/1/3/1/4/131406432/276196.pdfIn PDF document text
    • http://files.annasboldjewellerydesign.com/uploads/1/3/2/7/132740338/pakofibujuputi.pdfIn PDF document text
    • http://files.maccabbeebushcraft.com/uploads/1/3/0/7/130776220/6416538.pdfIn PDF document text
    • http://zifuwolax.mnsaf.org/uploads/1/3/0/8/130814328/343ed82.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0435/3651/5224/files/competition_analysis_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1577/7954/files/biophilic_design_research_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6725/1617/files/kakefiwaropisozapaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6486/6469/files/roguwemuwodavujobex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/30789107968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1574/9281/files/closer_to_god.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3461/5708/files/809596258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/nimobawefajumovufilifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9639/1323/files/73444240715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7082322425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/juxibexuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4506/0762/files/ielts_academic_writing_task_2_sample_questions_and_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA172 2008 bytes
SHA-256: 8ff8abc7e1e782bb4e7bc237dc5d696cd370d798c3e957a5bab78252b170551c
font_01_sfnt_off0000aaba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAABA 5392 bytes
SHA-256: 313b97fb88ec7d78726a80b5774b3dddff3ca0809cdfe88ec411dfd7ecbb7850
font_02_sfnt_off0000bcfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCFD 10172 bytes
SHA-256: fa4defd609d3ece60e63ac818544c7b4956f29fa033217cb40451ef26d700509

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