Malicious PDF — malware analysis report

Static analysis result for SHA-256 343a215c6d8a78a2…

MALICIOUS

PDF

41.0 KB Created: 2020-07-24 22:12:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d52b8dd7e4f5817c4b02ecff9ec7a342 SHA-1: 500d901aaa9fda1bc2df2227af98b978a82bcf60 SHA-256: 343a215c6d8a78a20c0f7ee369a970950db89ebb362a975458f18ff24c3ab2ee
194 Risk Score

Malware Insights

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

The PDF contains numerous links to redirector infrastructure, specifically identified as a 'PDF SEO Link Farm' and 'PDF Malicious Redirector Link'. The primary redirector URL is https://ttraff.ru/pify?keyword=pokemon+3d+games+offline, which is likely used to host phishing content or distribute further malware. The ML classifier strongly indicated maliciousness, supporting the conclusion that this PDF is part of a malicious campaign.

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=pokemon+3d+games+offline In PDF document text
    • http://files.stampsrhistory.com/uploads/1/3/1/4/131454286/xomosum.pdfIn PDF document text
    • http://files.the-authorscorner.net/uploads/1/3/1/3/131398224/128704.pdfIn PDF document text
    • http://files.mealprepdaily.com/uploads/1/3/1/1/131163856/4842700.pdfIn PDF document text
    • http://files.vibrantlivingmn.com/uploads/1/3/1/4/131482822/42b93.pdfIn PDF document text
    • http://files.shamanmodifications.com/uploads/1/3/2/6/132695633/liguluxivetemez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1587610690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fuwemosuwizukuxitakalav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7929/5385/files/gezirolufetikunidupuxuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/31659653215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9945/4628/files/37683869874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4873/9740/files/90898819134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5294/7863/files/6156246904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9052/3813/files/mepugepokujikeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/56749083005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4888/5662/files/66948805756.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0291/2168/files/95264232521.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC2 5068 bytes
SHA-256: cbd76b17cd3f9d0cb3fc1095edbc58e4ae3955b89da37d75d11e4d117d5a29d1
font_01_sfnt_off00006ce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE7 1608 bytes
SHA-256: fe7b70e31f4beac1d1e0e7bfceb73fe89266936216fa5333d5a49d4a04430ade
font_02_sfnt_off00007575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7575 10156 bytes
SHA-256: 252bd2211fd66479c09385f5f26c0cb95e2331722a23e45e12fc5a591d5503e1

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