Malicious PDF — malware analysis report

Static analysis result for SHA-256 6756df0d55260023…

MALICIOUS

PDF

48.4 KB Created: 2020-08-12 03:27:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 965638086402828676b24f83b061e674 SHA-1: 8ed05a819442c49c7fbcce77c593fadc9bb4619e SHA-256: 6756df0d5526002373b1285d1a0733acd4c10432e856dfb2b1ae0e9f0e376036
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.com) which then leads to other PDF files hosted on Shopify and other domains. This indicates a link farm designed to lure users into downloading further content, likely malicious. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector URL supports a phishing or malware distribution attempt.

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=robotics+and+automation+pdf In PDF document text
    • http://files.dry4u.com/uploads/1/3/1/3/131380688/dujupuxeb.pdfIn PDF document text
    • http://files.powerwindowparts.net/uploads/1/3/1/3/131379803/bfb89a563fbc.pdfIn PDF document text
    • http://fusava.sandiego173rdairborne.org/uploads/1/3/2/8/132814930/1526913.pdfIn PDF document text
    • http://files.chuckpisa.com/uploads/1/3/0/7/130739415/bosepa.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/1/0428/6640/9639/files/walokakigamumiritifedivaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3349/1613/files/alimentos_permitidos_para_diabeticos_tipo_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6876/7907/files/convertir_de_a_word_editable_sin_perder_formato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5013/7760/files/va_form_10-_7959c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/59715870218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2205/6600/files/45220977837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1087/4777/files/raxojafopawadumab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6808/7711/files/babuzobif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9826/0124/files/zugekefinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8765/1235/files/are_entrepreneurs_born_or_made_discuss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6223/1201/files/6164356761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1935/3757/files/88302610077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9679/1456/files/59665545070.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_off00007f59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F59 5320 bytes
SHA-256: 658a3240d0c381c1e282fc67a1d2365ceca084facea6185b2a8a083acbff1a12
font_01_sfnt_off00009157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9157 10452 bytes
SHA-256: 9bd4df004730b48fafe810d446317535ec7c271ab39dfd5605281dc761032faf

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