Malicious PDF — malware analysis report

Static analysis result for SHA-256 18ebad0064b9b992…

MALICIOUS

PDF

37.2 KB Created: 2020-08-09 05:57:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb7f4470d6136fe827e0d73e0c3f99cd SHA-1: 94221664ae5c1b509d139e1f891f1cd476bc4d9c SHA-256: 18ebad0064b9b992664282f3e392bd3dbdda73f0e4f988e50ee2dee42120ba31
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDFs, many hosted on Shopify, and a primary link to a redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=ley+austeridad+republicana+pdf', which is flagged as a malicious redirector. This suggests the document is part of a link farm or phishing campaign designed to lead users to malicious content.

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.cc/pify?keyword=ley+austeridad+republicana+pdf In PDF document text
    • http://files.silas-house.com/uploads/1/3/1/4/131407767/5134115.pdfIn PDF document text
    • http://files.mnrpcv.org/uploads/1/3/2/3/132303374/664c9be.pdfIn PDF document text
    • http://files.sacredheartemmett.com/uploads/1/3/1/4/131409755/8841854.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/1/0431/2779/9957/files/unity_jiggle_bones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2825/0781/files/sapamovev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4192/2982/files/42745694921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3492/6495/files/lunav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6415/6575/files/punamakunegededodabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3805/6354/files/10694717748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3817/0523/files/www._codejunkies._com_manual_3ds_powersaves_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3006/8894/files/40316065233.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4389/8022/files/wojetezojosiwuzupaxoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5731/4977/files/57200568988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2314/6906/files/change_file_to_iphone.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 5

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_off0000513b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x513B 5332 bytes
SHA-256: bd3776a023ee215199a0e30676e5dc88eb567ed42a08312e852e7b545843fd63
font_01_sfnt_off00006373.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6373 10928 bytes
SHA-256: a5683fead5fdf95b2fd085900934b460437391cf20b8014584555435172411a4

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