Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e616d151fb23cb9…

MALICIOUS

PDF

50.0 KB Created: 2020-08-16 15:11:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1d7c73e569ef27bb79ced1ddba726e9a SHA-1: 2320376d38fdf4f12b824c2e2ea73aabbe26fbd4 SHA-256: 5e616d151fb23cb99276cc800a2683ee2fbc2a2bef36e1b2b38e9e9e9eda9625
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple links, including one identified as a malicious redirector pointing to 'ttraff.com'. The document body, though partially obfuscated, includes the same lure text and URL, suggesting an attempt to trick users into visiting a malicious site. The ML classifier also strongly indicated maliciousness.

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=off+balance+sheet+financing+examples In PDF document text
    • http://files.agawegier.com/uploads/1/3/0/7/130775735/gonoduvisepiled-wupapaginemepu-tikitozusuvarun.pdfIn PDF document text
    • http://files.idoflowers.net/uploads/1/3/1/4/131438059/5246234.pdfIn PDF document text
    • http://zowironip.topdogtraining.net/uploads/1/3/0/9/130969808/topotijinenexirafam.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/1/0430/4994/3202/files/lemeputukeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0453/4692/files/85072836425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4633/8709/files/19047525112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/megapivekalinerewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2122/1539/files/advanced_java_interview_questions_you_ll_most_likely_be_asked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/pifizilitanitowiratef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4771/2928/files/24798688058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4829/6863/files/60593528988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0304/3230/files/goxoxunivusaxelulupezubeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3353/4357/files/ludulomifepaxi.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 5

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_off0000850f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x850F 5568 bytes
SHA-256: 0e741085091d608846fe1f810b4283f878cae39d9644fdcfb357004ccd4f0248
font_01_sfnt_off000097dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97DC 10408 bytes
SHA-256: 01e3d4c44d13f704c3ec5c5a72a8b44c69d4db39dd1fa3773f570c7d07c8620a

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