Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d9ec9b0de031d37…

MALICIOUS

PDF

106.7 KB Created: 2020-08-28 04:20:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0ec27532d71b155f34db15facbfa1ad SHA-1: f3e128be21fff1554a895600f5066ee90624cdd6 SHA-256: 3d9ec9b0de031d379bb60fca0568a2fc77786de133f8afd8fc867ac5a0d92ecb
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirectors and a link farm, indicating a malicious SEO-based lure. The primary redirector URL, https://ttraff.me/pify?keyword=instrumentacion+y+control+de+procesos+juan+carlos+mara%25C3%25B1a+pdf, is flagged as malicious. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains this same URL, suggesting it's the intended payload delivery mechanism.

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.me/pify?keyword=instrumentacion+y+control+de+procesos+juan+carlos+mara%25C3%25B1a+pdf In PDF document text
    • http://files.dangribben.com/uploads/1/3/0/7/130775021/1b161d5fb0bba5.pdfIn PDF document text
    • http://files.uprisingstarsinc.org/uploads/1/3/1/3/131379045/gowofikur.pdfIn PDF document text
    • http://lurek.redlandoakspta.com/uploads/1/3/0/7/130776680/9183720.pdfIn PDF document text
    • http://files.palmamingozzi.com/uploads/1/3/2/6/132695457/tesiredumug-jenetof-pofopikutebuw-wafuvebotira.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/1/0437/9040/1687/files/nojajusagopusix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4417/5013/files/wufagirusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0593/3730/files/xemowowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9540/7269/files/impulse_physics_problems_and_solutio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0609/1673/files/kekovafij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1420/7134/files/neet_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2247/5687/files/78883798613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/84115137842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0709/0598/files/72327996702.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_off00016190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16190 5628 bytes
SHA-256: b2e7391a43586438d772f82df38f61bfcc7abcc675a04ac2359a5d69deacde2b
font_01_sfnt_off0001745c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1745C 11872 bytes
SHA-256: 0cc21a425f43a3e9bc99a3b19d19cb3c63c7298803c4a3b64c7d9390c6b71159

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