Malicious PDF — malware analysis report

Static analysis result for SHA-256 78fbb27087ac10a6…

MALICIOUS

PDF

45.1 KB Created: 2020-08-10 00:41:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b27df6faf72788f0a18ab9a35f4c4a46 SHA-1: da86acd60c5773d5bd09e8203d6cbeee5d9f397d SHA-256: 78fbb27087ac10a671993d0055149e5a1106ef98615b9cbc85d86aadf3007d57
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to appear as legitimate document downloads, but they redirect to malicious infrastructure. Specifically, the link 'https://ttraff.ru/pify?keyword=texto+argumentativo+y+sus+caracteristicas+pdf' is identified as a malicious redirector. This indicates a phishing or scam attempt leveraging SEO techniques to distribute malicious content.

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=texto+argumentativo+y+sus+caracteristicas+pdf In PDF document text
    • http://lexafasu.parentshirts.com/uploads/1/3/1/0/131070161/vevovizenemo.pdfIn PDF document text
    • http://files.cullensailworks.com/uploads/1/3/2/6/132695986/mukixoti.pdfIn PDF document text
    • http://files.cathermanslandscaping.com/uploads/1/3/2/7/132740533/xofedozapezinusimu.pdfIn PDF document text
    • http://files.gateaumarche.com/uploads/1/3/0/9/130969499/5690647.pdfIn PDF document text
    • http://dejeraj.ozarkmountainridgerunners.org/uploads/1/3/1/3/131383483/linogepepaluz-vutodalibet-dekuwawevimi.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/1/0447/7576/8221/files/auriculotherapy_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/8913043926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5373/6351/files/dutotomumejajuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3164/9689/files/davegarovifako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/wapakiberel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9899/6889/files/werilanele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9433/4869/files/85148209770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9158/2357/files/python_run_shell_command.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4539/6386/files/segujasuraxubepagodawufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6985/7176/files/ketogenic_diet_food_list_for_weight_loss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2422/0321/files/63914215110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8510/2237/files/2666200947.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ee3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE3 5624 bytes
SHA-256: d6f0338340772f2570c65c6e3b017daa9a2e4527db7c43f6051777454f3fb5d5
font_01_sfnt_off00008201.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8201 11020 bytes
SHA-256: 9f2a084b60c5eaeab31aaa8bf32681b3ab98079f89ad6bb68ea807f4d9b0b0cf

Open this report in the interactive analyzer, or submit your own file for analysis.