Malicious PDF — malware analysis report

Static analysis result for SHA-256 714f0166fef2a160…

MALICIOUS

PDF

37.7 KB Created: 2020-08-10 12:18:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b451d4018236da95777deb631b890c77 SHA-1: 8bcf72547153441f2e07a07add22dda3f5ba7d3f SHA-256: 714f0166fef2a1609ea83a8d792cb13b798968e5b3d86d7bb54d26f6e0c7702b
214 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a redirector at ttraff.com. The document body, though malformed, includes the same lure text and the malicious URL, suggesting a phishing attempt to trick users into downloading potentially harmful content. The presence of malformed exploit streams and ML classification further supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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.com/pify?keyword=difference+between+secured+and+unsecured+loans+pdf In PDF document text
    • http://jasasozen.crustandmagic.com/uploads/1/3/1/6/131637881/vimuxopobuzit-nigasenavisur.pdfIn PDF document text
    • http://files.drinkbeautynola.com/uploads/1/3/1/4/131408913/8812690.pdfIn PDF document text
    • http://files.jeffmacauley.com/uploads/1/3/0/8/130815664/52031a6dd22efaa.pdfIn PDF document text
    • http://wunafor.tierraburns.com/uploads/1/3/1/4/131437987/edf0f20ff240.pdfIn PDF document text
    • http://files.shophandmadefarmstead.com/uploads/1/3/2/7/132741352/topamijajemug-furenonirex-tijupafamejege.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/1/0431/8317/7887/files/82209749040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1551/5805/files/college_botany_practical_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4587/7922/files/42080357890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7994/2812/files/angina_estavel_instavel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6091/5350/files/amines_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4605/0714/files/keto_diet_chart_for_weight_loss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3045/2123/files/first_year_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8618/3576/files/digikitubonuvajuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0515/7284/files/agonistas_alfa_2_adrenrgicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7443/7791/files/nivawupewagofapatidipaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0925/3282/files/wexelubakeviwixejub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/bovatonagerediwagi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5768 5380 bytes
SHA-256: a86f2d07f2e7389063934322f990bd08020499c29271cda3329546f20d3c9f3a
font_01_sfnt_off000069d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69D6 9256 bytes
SHA-256: 4496f7fd61180f164140d02734b612dc925bf3a450971424bfc66a86183ff6c4