Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a3723d18cd191e3…

MALICIOUS

PDF

41.3 KB Created: 2020-08-05 14:53:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e452182a2ad70a9656f4827ae6d3fa57 SHA-1: 656797ed9c0e6f1a63e51f6d6ad2f98f76466dbe SHA-256: 0a3723d18cd191e350fc962a33b112418c01f711b000044f3da5c2032b180229
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 that appears to be part of an SEO link farm. The primary lure, 'Online pdf translator english to french', directs users to 'https://ttraff.ru/pify?keyword=online+pdf+translator+english+to+french', which is flagged as a malicious redirector. This suggests a phishing or scam attempt, likely using the document as a lure to drive traffic to malicious infrastructure.

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=online+pdf+translator+english+to+french In PDF document text
    • http://files.mentalhealthweek.club/uploads/1/3/0/8/130813881/4b9c661402d1.pdfIn PDF document text
    • http://files.mellinamathclass.com/uploads/1/3/2/7/132712006/4781525.pdfIn PDF document text
    • http://nozome.luxuryvillabonitapr.com/uploads/1/3/0/7/130738779/5177945.pdfIn PDF document text
    • http://files.riedelsports.com/uploads/1/3/1/4/131407898/2d58c01f40455.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/1/0436/5081/0014/files/rafawusonuvatudonutojaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6744/0294/files/make_list_targets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8163/8812/files/toxowopimujikuriza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4948/3420/files/pianoteq_5_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2477/6354/files/sivob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/12118655779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0862/9659/files/how_to_hack_csr_racing_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9455/7347/files/8486208675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/wizuxugatavisijup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7153/7301/files/pdf_ke_word_online_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9911/2095/files/3862405275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wonazonuv.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_off00006302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6302 5444 bytes
SHA-256: 5cce5e757671a809b6531f7acde060235befcf5daf7314a20aaf789836d85c39
font_01_sfnt_off00007581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7581 10192 bytes
SHA-256: b3032231ed6ebab768bb42b8ad1578f4627c9a93e292b5dfddc776c6e67ceb10

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