Malicious PDF — malware analysis report

Static analysis result for SHA-256 7707d3472fd989b4…

MALICIOUS

PDF

39.1 KB Created: 2020-08-14 07:10:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e0d3f2e8ef211733904fcaababa1a25 SHA-1: 49f9d7919a6dc6172b15c0a59870f2b18913477a SHA-256: 7707d3472fd989b407bae2729126a6cd869ae9f97033750f7797b1deaa9fd329
194 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links, including one pointing to a known malicious redirector at 'ttraff.ru'. The heuristic firings indicate it's part of a link farm designed to redirect users, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent.

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/wb?keyword=pseudobombax%20ellipticum%20pdf In PDF document text
    • http://files.canadiancutthroat.ca/uploads/1/3/0/7/130775520/minagovanem.pdfIn PDF document text
    • http://files.fulbrightpta.com/uploads/1/3/1/8/131871864/pomuwavizeta_tobabejodu.pdfIn PDF document text
    • http://files.polygonalmind.com/uploads/1/3/1/8/131871778/9bfc331a3cf9.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/1/0438/2975/6066/files/putedotopafozuvixikijoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5543/8234/files/70381243982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3181/2504/files/advanced_engineering_mathematics_by_rk_jain_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2427/7923/files/wumobopepufolotisupila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/82263874521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3830/1594/files/33615934948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4304/2966/files/bv_ramana_higher_engineering_mathematics_ebook_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/71299233386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6221/4304/files/79028587381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/22546110206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3346/7807/files/regulamemusutegefepasudej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2328/6940/files/39983583260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/2454/3907/files/1_minute_10_second_timer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/9604/3674/files/budaya_di_malaysia.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 2

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_off000058db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58DB 5416 bytes
SHA-256: c7251ee68b45d745151e4887566019e88229ba1515a2eb47b5023c7257989f86
font_01_sfnt_off00006b34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B34 10672 bytes
SHA-256: d81f612e3977b4ff847049ed8c65e6f19f8a3ce892f45d70aa8338f51dd82799

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