Malicious PDF — malware analysis report

Static analysis result for SHA-256 808e922d0470e7bd…

MALICIOUS

PDF

45.2 KB Created: 2020-08-27 18:31:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b14b8779a95a4d0a6878c2172d8cace SHA-1: 22defb81ed168d3e389df9b38f0560fdd291e9e3 SHA-256: 808e922d0470e7bd8d8475d4fad3c6e1543e039d3bd7334d315727dbba7dd29f
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.club'. This URL is also present in the document body, suggesting an attempt to lure users to a malicious site. The presence of numerous other PDF links, many pointing to Shopify, indicates a link farm strategy, likely for SEO manipulation to improve the ranking of the malicious redirector. The ML classifier also strongly flagged this PDF as malicious.

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=interligne+simple+c%252527+est+combien In PDF document text
    • http://files.learninginafterschool.org/uploads/1/3/1/8/131871852/mokopijojupigerekuze.pdfIn PDF document text
    • http://files.katrinafrazer.com/uploads/1/3/2/6/132683005/pijuj.pdfIn PDF document text
    • http://files.downsyndromejunction.com/uploads/1/3/2/6/132695329/kivosazug.pdfIn PDF document text
    • http://files.columbianacoc.com/uploads/1/3/1/6/131637163/8c35b74b.pdfIn PDF document text
    • http://sufan.carolwooten.com/uploads/1/3/1/3/131381369/3974504.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/1/0432/9072/2454/files/2636584732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0145/4500/files/dnd_5e_advantage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5618/4992/files/niresh_high_sierra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5209/0022/files/belitazazodojigoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5294/9913/files/90431760860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6172/9685/files/embed_iframe_in_google_slides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5407/8871/files/fuwomopekatefojatipitaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3599/0943/files/62381245131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4597/6221/files/libros_autoestima_nios.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006530.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6530 5152 bytes
SHA-256: 43559a27fa297a156db77a914283b2ad50fb230060c121af71a333beafda9715
font_01_sfnt_off000076a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A0 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off00007f2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2E 12088 bytes
SHA-256: d2e9fdfdc9b962b3786a9237b76bb958f362a150870d6c51feb558b54b4a33cb