Malicious PDF — malware analysis report

Static analysis result for SHA-256 632b381bacb3b499…

MALICIOUS

PDF

41.6 KB Created: 2020-08-26 21:02:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 778ffa5c90afa0b3db3869aaa1ef87c8 SHA-1: 084340f72e44e441790d5830e5ab36674b27f596 SHA-256: 632b381bacb3b499f57ee776c9b9991f61c2cec10950e549755e18d60bf89480
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.club) identified as malicious. The document body, though partially corrupted, contains a URL that aligns with the malicious redirector. The presence of a link farm and a malicious redirector suggests an attempt to drive traffic to potentially harmful content, likely a phishing or scam page.

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.club/pify?keyword=cuales+son+las+magnitudes+fundamentales+y+derivadas In PDF document text
    • http://zekikero.yosemitepet.com/uploads/1/3/1/6/131606457/6958573.pdfIn PDF document text
    • http://files.gtfamilylifecenter.com/uploads/1/3/0/7/130739780/332306.pdfIn PDF document text
    • http://famopewaw.agsorette.com/uploads/1/3/1/4/131453133/duvumosepobadovewat.pdfIn PDF document text
    • http://vizuta.downeastphotographers.com/uploads/1/3/1/3/131383483/mojaritudidafigab.pdfIn PDF document text
    • http://files.limberlostmusic.com/uploads/1/3/1/4/131437680/be11f04a437d.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/1/0428/0451/0887/files/algebra_1_textbook_prentice_hall_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5529/2317/files/google_sheets_vs_excel_market_share.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5820/7651/files/abordagem_comunicativa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4896/7061/files/bunejelowemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1559/4399/files/vukuzilikuninum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0990/8637/files/degevelok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/21435827868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5103/8358/files/55920401518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5964/1496/files/34573450676.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 2

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_off00006129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6129 5292 bytes
SHA-256: eed3967f81b91b015c87c32562f54f77d633d9a77cb97449bbc9302fa197c5f5
font_01_sfnt_off00007322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7322 11840 bytes
SHA-256: adaa0b78ad7584e2772d6a810dd44338a53613303ddc1377ba21a65d7b4178b8

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