Malicious PDF — malware analysis report

Static analysis result for SHA-256 addf23b5ae6c54b1…

MALICIOUS

PDF

43.0 KB Created: 2020-08-08 11:22:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a8f5d5e8303bbbffb2a3310875c7893 SHA-1: e328ee6a1407f11bbfa05e5f0dca1775488364f1 SHA-256: addf23b5ae6c54b189dfe001bccadff39e1d594066ba3d54be8a5fb079fb95f8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=best+app+for+pdf+annotation+mac'. This link is presented within the document body, suggesting a social engineering lure to trick users into clicking it. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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=best+app+for+pdf+annotation+mac In PDF document text
    • http://files.thewholechildmatters.com/uploads/1/3/1/3/131378776/busixed.pdfIn PDF document text
    • http://files.connectingcommunities.com.au/uploads/1/3/0/8/130814245/be674e451f228b.pdfIn PDF document text
    • http://files.iosociety.org/uploads/1/3/1/3/131383750/33acbbc.pdfIn PDF document text
    • http://files.mojirestaurant.com/uploads/1/3/1/4/131453284/1209058.pdfIn PDF document text
    • http://gokow.yourfitnesschloeshea.com/uploads/1/3/0/8/130874359/kegugov_zepojofakemomen_nemevon.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/1/0429/3197/8403/files/27975059720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2809/3856/files/devuvasetapagiveraraxeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7824/6815/files/83376260850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/57296252150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9925/9031/files/66595634006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9504/0924/files/a_level_mathematics_statistics_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8474/9729/files/electronics_and_communication_engineering_projects_for_final_year.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0922/0501/files/nijovisaxonelexiwam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/datumaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/3122934735.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 7

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_off00006b18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B18 5320 bytes
SHA-256: 00839c70ed0d3faf9ced283325b2dc236d6d07ecc7124fb2636c5548b11ce79a
font_01_sfnt_off00007d1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D1D 10044 bytes
SHA-256: 0b1cab9d83e7ca0385f441095385ba7bc70627fba75577f0f690cb977c53d9fd

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