Malicious PDF — malware analysis report

Static analysis result for SHA-256 6773988e2327be56…

MALICIOUS

PDF

43.2 KB Created: 2020-08-12 19:04:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3fa9ffc5b3dc6a9aa523ec4252618a91 SHA-1: 795edeb1ea89726a67daa3328aba48d2594adca0 SHA-256: 6773988e2327be56a9e6694035f20e2d849967b3e1612fffce49ae8dfbd33cce
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 `https://ttraff.com/pify?keyword=alejo+carpentier+concierto+barroco+pdf`, which is identified as a malicious redirector. The document appears to be part of an SEO link farm designed to lure users with fake download lures. The ML classifier also strongly indicated maliciousness.

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=alejo+carpentier+concierto+barroco+pdf In PDF document text
    • http://files.innerheartpathways.com/uploads/1/3/2/6/132681002/46e9335.pdfIn PDF document text
    • http://files.thriftradiateshappiness.com/uploads/1/3/2/6/132682124/601070.pdfIn PDF document text
    • http://files.refugefriendsinc.org/uploads/1/3/1/8/131856071/2005909.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/1/0435/5814/2120/files/34557512245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1804/2018/files/dovexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8548/6498/files/88894828551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6090/4604/files/new_riven_skin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7763/2149/files/tevijiboned.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6431/0425/files/61977571310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6310/8003/files/carnet_de_sante_france.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5519/4011/files/14691648560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2246/7750/files/96591796554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41557636134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5312/files/vidunuwufunipalopitenawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1925/5454/files/53228619245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/vuzadokiwamuk.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 8

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_off000068a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A3 5176 bytes
SHA-256: 1d24566ea4fc2815ac72d906a08c9aea4d749541272a0b6777fee240af86906e
font_01_sfnt_off00007a49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A49 10872 bytes
SHA-256: 8dd0486c5154aed49fe4353179f16555b936141f4b45712ad83f79fa282b9d6c

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