Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecba0d3dd411cf79…

MALICIOUS

PDF

49.2 KB Created: 2020-07-30 19:58:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6299f25ab4a0ede4c43a61c6d64f55dc SHA-1: 97736ee947ef89c46923cd5367f46fcfecddf1c4 SHA-256: ecba0d3dd411cf797df754fe3c16b7ca49a3b12a8292c2c97364cabd44424b30
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the primary links, 'https://ttraff.ru/pify?keyword=ahmednagar+district+map+pdf', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to be generated content related to PDF creation, further supporting the attack pattern.

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=ahmednagar+district+map+pdf In PDF document text
    • http://files.cognitivecaptial.org/uploads/1/3/0/7/130739399/togumunef-vodibokexabev-varuwawowijasu.pdfIn PDF document text
    • http://files.justawesomesauce.ca/uploads/1/3/0/7/130775371/fogizapubo.pdfIn PDF document text
    • http://files.knightsmun.com/uploads/1/3/0/7/130776054/wuxaridova_wivepefidosogod.pdfIn PDF document text
    • http://files.sfagrammar.sanctafamilia.org/uploads/1/3/1/3/131379899/7020446.pdfIn PDF document text
    • http://files.sebastian.boundlessgym.com/uploads/1/3/1/3/131384636/xokawizuge_fojodimefe_pimudaporipus_vuvagidupobi.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/1/0437/3390/9665/files/92330247320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3845/7504/files/72710790572.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8443/9971/files/nuwomidopigux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2130/9851/files/puwarejitumarotudaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/pekusifitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0258/5500/files/64588466410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9579/3568/files/wijubufebifagetog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5287/4390/files/84312867058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6481/1927/files/vatiwazegutizapop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8897/7815/files/6960781516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5876/4696/files/wavivufanilejexutowusif.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
🗂 Part of campaign: boundlessgym.com 3 samples

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_off000081eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81EB 5204 bytes
SHA-256: 9ae0f5b43c27b2ada46d2227eb5c8c5e79bbb5c2ebd74ff65f43e0ca518cf7d9
font_01_sfnt_off00009371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9371 10724 bytes
SHA-256: 2a61bb14b02f992bb7458763c780c282b56feba2a21a9d69fac043665347e066

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