Malicious PDF — malware analysis report

Static analysis result for SHA-256 67313efabc648d0e…

MALICIOUS

PDF

43.1 KB Created: 2020-10-03 14:34:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d3b0daa7919b69d343d99bedcc776dc4 SHA-1: d0c73f3b3141ed484fd40e16e671f30ca105730a SHA-256: 67313efabc648d0eec2217b173d51e7c7504bcedcd59e6b4fcbbb83977336cd8
184 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded URLs, many of which point to disposable hosting and appear to be part of a link farm. One URL is identified as a known malicious redirector. The ML classifier strongly indicates maliciousness, suggesting the document is designed to lead users to malicious infrastructure, potentially for further exploitation or phishing.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://gettraff.ru/strik?keyword=asking+the+right+questions+global+edition+pdf In PDF document text
    • http://files.tathrabeachcountryclub.com/uploads/1/3/0/8/130873918/nekerakadazopikasi.pdfIn PDF document text
    • http://files.glscentre.com/uploads/1/3/1/3/131379060/bba33f237231.pdfIn PDF document text
    • http://buriku.bpecc.us/uploads/1/3/2/6/132682063/38fc93f97868b13.pdfIn PDF document text
    • http://files.empyreanresearch.org/uploads/1/3/1/4/131456191/kowisorutif.pdfIn PDF document text
    • http://files.roanmountainglass.com/uploads/1/3/0/7/130739081/jifod.pdfIn PDF document text
    • http://files.standebiec.com/uploads/1/3/1/3/131383482/6776779.pdfIn PDF document text
    • http://vobin.taylormorrismusic.com/uploads/1/3/1/4/131482988/batapugi.pdfIn PDF document text
    • http://dokogatos.jgerenstein.com/uploads/1/3/1/1/131163717/xurilofajunizeb_bilaripibu_wutukeveb.pdfIn PDF document text
    • http://files.hawkecreations.com/uploads/1/3/1/3/131379748/6603715.pdfIn PDF document text
    • https://site-1037096.mozfiles.com/files/1037096/42956829830.pdfIn PDF document text
    • https://site-1036965.mozfiles.com/files/1036965/mazukusenomotevanokineg.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/1/0429/9679/3503/files/83890719811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8669/3023/files/7816258902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/5880/3100/files/49939050375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8526/7097/files/5838462218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/9841/9615/files/atomic_particles_worksheet_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A17 5624 bytes
SHA-256: 851d981d9b3137c2f78628ee73e7db82c92838ec988eecb0b2203cc80009a472
font_01_sfnt_off00007d24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D24 10160 bytes
SHA-256: 11997842d9b775ace104ea70326f03565b2f5a50806e63fb870c4a246c26df92

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