Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca79ac253d6db8a9…

MALICIOUS

PDF

60.8 KB Created: 2020-08-11 05:02:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80bdb80b866294be52df3a93de241244 SHA-1: 727a2a4cac7f2548ca9ff60dcfe4f5dc5da4d6ca SHA-256: ca79ac253d6db8a9ae86afef491c6c676892a9e1d28e423113d5d66f96dd8d6f
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=accounting+standard+14+pdf'. This indicates a phishing or social engineering attempt to redirect the user to malicious content. The document also contains a large number of external PDF links, many hosted on shopify.com, suggesting a link farm or SEO poisoning tactic to improve search engine ranking for malicious content. No scripts were extracted, but the primary attack vector appears to be the 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.cc/pify?keyword=accounting+standard+14+pdf In PDF document text
    • http://files.limassolsportsmassage.com/uploads/1/3/0/8/130874129/laxuvovobopekidom.pdfIn PDF document text
    • http://files.laurenknuttila.com/uploads/1/3/1/4/131453982/xepitoput.pdfIn PDF document text
    • http://files.lindyjames-christenson.com/uploads/1/3/1/3/131379612/3953267.pdfIn PDF document text
    • http://files.juliewiegand.com/uploads/1/3/1/4/131453480/dd1b72145be5fa.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/1/0428/9835/8432/files/juzopuzenafososokazulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6128/7839/files/muvobobefajad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7988/4195/files/penepukonobokubonel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3839/1970/files/navolawuwerekafimin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8951/7978/files/zekugimafavojifaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/35306975828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7010/3452/files/98499848937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6591/5045/files/61703654922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7878/5951/files/variable_valve_timing_and_lift_electronic_control.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5658/7174/files/nj_driving_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4927/7845/files/nemufokaruge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0922/0501/files/28076807817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1523/3948/files/48605386941.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_off0000b0c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0C9 5420 bytes
SHA-256: b63711df7b116c47a30de7d5d2913cde1224d4c2f3711551f52355c159a05b6d
font_01_sfnt_off0000c351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC351 10180 bytes
SHA-256: ae3c442b503794420cc63df8ec74fbbd039939849075430d6f38120c2976eae8

Open this report in the interactive analyzer, or submit your own file for analysis.