Malicious PDF — malware analysis report

Static analysis result for SHA-256 18e479c8b5688657…

MALICIOUS

PDF

42.5 KB Created: 2020-07-31 20:06:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5f06eb025e7ccf0c9f54bf68e279e6d6 SHA-1: db5e6d22a2992a776611bf3413044bdf62ccb01f SHA-256: 18e479c8b5688657cb9026d969ec7958b02d4da57badbcf3981c137eac0326a7
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to a redirector infrastructure known for hosting malicious content. The primary redirector URL is https://ttraff.ru/pify?keyword=frontend+developer+jobs, which is used to lure victims with fake job opportunities. The document also contains a large number of links to PDFs hosted on Shopify, likely part of a link farm to improve SEO for the malicious redirector. No scripts were extracted, but the embedded links and heuristic firings strongly indicate a phishing or scam attempt.

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=frontend+developer+jobs In PDF document text
    • http://files.susanparrpoetry.com/uploads/1/3/1/1/131164130/85c80ae2bdee.pdfIn PDF document text
    • http://files.kupcakesagogo.com/uploads/1/3/2/7/132712005/danunam-dimijepamig.pdfIn PDF document text
    • http://files.rebeccafiorentino.com/uploads/1/3/1/3/131398242/tibesenupemokot.pdfIn PDF document text
    • http://files.ghostwrittensomniloquy.com/uploads/1/3/1/3/131379830/caf3b18ff.pdfIn PDF document text
    • http://files.hotstuffnmore.com/uploads/1/3/1/4/131437636/8279407.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/1/0432/7351/9269/files/gopanuzoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2585/6669/files/gogop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/82242302214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/22119848292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1614/2497/files/36169716167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2068/1369/files/sikirigabad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7605/8274/files/zavetuxezumopujabilogavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7002/9975/files/vojetazulaxeloxevux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7346/0641/files/rapilujusilomazasagoxid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0122/5114/files/20192310327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2902/0317/files/76471898826.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 4

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_off00006350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6350 4976 bytes
SHA-256: 7499c302e728573c5b064e1969ed89ebdf04e2f96d49d4a9080ed56e27044a2c
font_01_sfnt_off00007450.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7450 15148 bytes
SHA-256: a89f94945fa07438bf2d7a0bc0b4f1a6dd63a85d25738a4297c56e91e616b581

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