Malicious PDF — malware analysis report

Static analysis result for SHA-256 346666e3b3b0175a…

MALICIOUS

PDF

77.3 KB Created: 2020-08-11 04:08:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a67ae477a2a7a598e36a98527735019 SHA-1: d1a7cdedd573708fca672d7abe5c04f521f9fa08 SHA-256: 346666e3b3b0175aa98b9970f15b04ac31bada8060dae869d3d19cb9b2f39965
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL. The document body, though heavily obfuscated, contains the text 'Camilo torres restrepo biografia pdf' and the malicious URL, suggesting a lure to download further content. The primary malicious URL is https://ttraff.com/pify?keyword=camilo+torres+restrepo+biografia+pdf, which is a known malicious redirector.

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=camilo+torres+restrepo+biografia+pdf In PDF document text
    • http://files.m-d.systems/uploads/1/3/0/7/130739232/ketibopesezaxa_nilipopigoreniz.pdfIn PDF document text
    • http://ruligifum.momtomomsales.net/uploads/1/3/1/0/131070450/3074304d3.pdfIn PDF document text
    • http://files.fairviewparkrec.com/uploads/1/3/1/4/131437139/efd4d909a13.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/1/0435/4542/8120/files/lurokogunivarovexowijum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/duzavekilut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7555/9829/files/2002_suzuki_xl7_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/86397238282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7217/6796/files/13396668954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1770/5371/files/cite_mla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/luzubewamuzedebike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8499/5991/files/wovetifemibed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0145/4500/files/mudiximigunelanivox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57727452667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8516/0857/files/51602271053.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC84 5404 bytes
SHA-256: ecdf472cbe3839f8f5edaaefeaf91f2a71956c54206226b75384a6454bb13988
font_01_sfnt_off0000eec7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC7 10668 bytes
SHA-256: a86575f0bf10019cd71ec127dfd76b909acdb13682845162f0610abe17c277d6
font_02_sfnt_off00011366.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11366 16092 bytes
SHA-256: c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e

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