Malicious PDF — malware analysis report

Static analysis result for SHA-256 790d0f20f8b87133…

MALICIOUS

PDF

46.0 KB Created: 2020-08-18 16:26:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89fb8a569b1a9d50a9083d2a0c9040e6 SHA-1: 91f36e2948cda8677cf4c600a710ed8dd618a51b SHA-256: 790d0f20f8b871334870c1030026b3d682a9295490834078f1992ddaa4608ab1
194 Risk Score

Malware Insights

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

This PDF file contains embedded links that redirect to a known malicious URL, identified as a redirector for SEO spam. The document body, though heavily obfuscated, contains text related to 'Dubai tour guide license course fees', suggesting a phishing or scam lure. The ML classifier also strongly indicated maliciousness.

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=dubai+tour+guide+license+course+fees In PDF document text
    • http://nilaj.makerspaceretreat.com/uploads/1/3/0/7/130775166/7e1e9a3.pdfIn PDF document text
    • http://files.antoinescookieshop.com/uploads/1/3/1/6/131636726/b36d3e17ff72b9b.pdfIn PDF document text
    • http://luzimon.chipgeorgia.com/uploads/1/3/1/6/131606346/30cfabe3.pdfIn PDF document text
    • http://files.csmmttaiwin.com/uploads/1/3/0/8/130813526/wiwaxizudamasor_tafep_kigumoju.pdfIn PDF document text
    • http://files.pdxprays.com/uploads/1/3/1/3/131383018/wikixawasagi.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/1/0431/7832/8224/files/mekuratidusejuzuxawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7129/7943/files/kipivovozagegedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9190/9025/files/daytona_beach_craigslist_org.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6788/2134/files/foo_pets_login.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3514/7933/files/ruparirinexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4626/3201/files/jakukasapuzaziwuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/neoliberalismo_histria_e_implicaes_david_harvey.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_off000076a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A1 5328 bytes
SHA-256: 79327d4249d8763bc62936910ce59db04389b562c5ea17309eeb0a92ae7c0848
font_01_sfnt_off000088c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88C9 9948 bytes
SHA-256: 7e28621419404cc5c053271da9e7d3c333d5bddc21cb9e9412a2bf4f14989a6b

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