Malicious PDF — malware analysis report

Static analysis result for SHA-256 43058833142e8aee…

MALICIOUS

PDF

42.6 KB Created: 2020-08-18 14:42:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cfeb0c0cf8b0bd3cfad27e6e2c9dd54c SHA-1: 29bb7e3a414cc9d31ad24a1ada624ee9c164e4b6 SHA-256: 43058833142e8aeeee21e4dd17fd0824963800ff5f3cccf3145051782808c1c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.com). The document body, though obfuscated, contains the redirector URL and several benign Shopify URLs, suggesting a link farm or SEO poisoning tactic. The primary malicious URL is https://ttraff.com/pify?keyword=assessment+vs+evaluation+pdf, which is likely used to redirect users to a phishing or malware distribution site.

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.com/pify?keyword=assessment+vs+evaluation+pdf In PDF document text
    • http://files.uniteoffshore.net/uploads/1/3/1/0/131070846/wimikawigaxuwe_bodavigir_vejibejovosewu.pdfIn PDF document text
    • http://betep.jamesharriman.co.uk/uploads/1/3/2/6/132682787/6156962.pdfIn PDF document text
    • http://files.bonafidefiction.com/uploads/1/3/1/4/131411539/fofukovu-naboku-kadivuvavewir.pdfIn PDF document text
    • http://rorevi.museumonmain.org/uploads/1/3/2/8/132814930/520351.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/1/0434/7772/9442/files/rokok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9928/2845/files/airmen_result_02_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6356/5727/files/23900725091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5417/7185/files/dokepekisuzipijapifilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/srs_premium_sound.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1901/0201/files/5173870978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2161/5775/files/80797401640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9582/5320/files/topic_about_afghanistan_history.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/94878479097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5064/7204/files/12685580671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0689/3985/files/switch_live_stream.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_off00006968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6968 5140 bytes
SHA-256: 212bd13ddcc04e5b8b8901bb15a9bffeb1811cb2c2d72bd7f0787204a5c7ca78
font_01_sfnt_off00007ade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ADE 10224 bytes
SHA-256: 64da4e21d4be7f03c1bc37fd9c8fa3eae3c6ee7253d4bb618bdf05410e6172e9