Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e74042e2e2bdb7d…

MALICIOUS

PDF

39.9 KB Created: 2020-08-22 16:10:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 37b51707de7bb2c9befca049ae9a1332 SHA-1: b4e9d17a96388278fb4e368a0dc779771a568fdd SHA-256: 9e74042e2e2bdb7de70f6beb69483709f0085c53f171cf4faf85406aa2710c21
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded URLs, with a critical heuristic identifying it as a link farm pointing to a malicious redirector. The primary malicious URL is ttraff.ru, which is used to obscure the final destination. The document body contains garbled text and what appears to be a search query, suggesting a lure to entice users to click the malicious links. No scripts were extracted, but the sheer volume of links and the use of a redirector strongly indicate a malicious intent, likely for phishing or malware delivery.

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=assassin%2527+s+creed+parents+guide+imdb In PDF document text
    • http://wedegow.whoareweblog.com/uploads/1/3/1/4/131483254/pagivoguz_vabig_galaratofoburib_joxera.pdfIn PDF document text
    • http://files.gaia-latableturquoise.com/uploads/1/3/1/6/131606368/169513734ab93.pdfIn PDF document text
    • http://files.artofgg.com/uploads/1/3/0/7/130738830/96686b1f0bc9.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/1/0430/5797/1362/files/67294033219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1931/3062/files/thermodynamics_an_engineering_approach.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3837/5074/files/zixisabelowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6404/2396/files/29629973953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1901/6104/files/lidipalabolemope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7311/7086/files/breast_cancer_staging_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6245/1611/files/14551340701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/ethiopian_reporter_vacancy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/bozivex.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 1

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_off00005dda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DDA 5524 bytes
SHA-256: 611f9fc08fd29362af2a321d29a916ae96aa15a2e85bac412b563342f082372f
font_01_sfnt_off0000707e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x707E 10060 bytes
SHA-256: 35ec605f808ac81c6749c83cdfef96e7642f5dbb3f08c72dbbb87e274444b03e

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