Malicious PDF — malware analysis report

Static analysis result for SHA-256 669274fd20dd0ffd…

MALICIOUS

PDF

37.5 KB Created: 2020-08-11 16:42:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cc8a5884bb6229bf1aac4ab02488adf7 SHA-1: 0796a3fda09712522fc3d7572f0ed7234c20c41b SHA-256: 669274fd20dd0ffdab1fca7f209b1254c6f3b226a080277bde0d89ee3df7504e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) that is known to host malicious content. The document body, though heavily obfuscated, contains a URL that also leads to this redirector. The primary goal appears to be to trick users into clicking these links, likely leading to a phishing page or malware download.

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.cc/pify?keyword=socialismo+y+comunismo+marta+harnecker+pdf In PDF document text
    • http://files.nouvellegraphicdesign.com/uploads/1/3/1/8/131856703/tobegegijew-zejomogepoz-xurixevukewan-fejufuguvo.pdfIn PDF document text
    • http://foropagi.ecoinclusive.org/uploads/1/3/2/7/132740720/6859924.pdfIn PDF document text
    • http://files.bizmark.net/uploads/1/3/0/7/130775413/mevesipufona_tituvuxe_wokisepowe.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/1/0433/4485/5195/files/botijewivumoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3658/5629/files/augusto_boal_forum_theatre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8984/5671/files/export_file_cdr_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8283/2289/files/kixarikenaresuxageke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1761/4998/files/jofafobot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9839/1196/files/mejolelidejazuvogab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4681/3344/files/additionsverfahren_gleichsetzungsverfahren_einsetzungsverfahren.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/bapubijikovenafotizolon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6590/9160/files/the_juvie_three.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/6861/4808/files/bettercap_tutorial.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 3

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_off000051a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51A4 5664 bytes
SHA-256: d683614c97a31bbee6ba92f59a467130dc3bfc22a305f36c90ed03b1fed49c67
font_01_sfnt_off000064b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B3 10612 bytes
SHA-256: 7377a91cda9ac23d9069bcb6db6284aa3d79b34ef58304cac1aa25fed79cac71

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