Malicious PDF — malware analysis report

Static analysis result for SHA-256 c27e445f686bb78a…

MALICIOUS

PDF

54.1 KB Created: 2020-08-08 03:18:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8301bc235adb6061b4657627de57809d SHA-1: e6857802ce0b928b656332594c8be933750b4b38 SHA-256: c27e445f686bb78a0bf49d940b7b289639aa43ed5c6ff2b7f515f1c9668ddcf6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link to 'ttraff.cc' is identified as a malicious redirector. This suggests the document is part of an SEO link farm or phishing campaign designed to redirect users to malicious sites. The presence of the malicious redirector and the sheer volume of links indicate a high likelihood of malicious intent.

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=arthur+rimbaud+les+illuminations+pdf In PDF document text
    • http://files.tcspringtraining.com/uploads/1/3/1/0/131069968/lirijo-jojemuxixupom-suxugasonojolud-vopiwajuwuvumoj.pdfIn PDF document text
    • http://files.projecteva.org/uploads/1/3/0/7/130776401/9066253.pdfIn PDF document text
    • http://files.centralcoastna.org/uploads/1/3/1/0/131070820/4356106.pdfIn PDF document text
    • http://files.leguesepticservices.com/uploads/1/3/1/3/131384424/zebaxi-wevudufi-niruwatejis.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/1/0432/9121/3980/files/94525824407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/github_markdown_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3775/3501/files/piladiwutiverogaziwupod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6971/0242/files/determination_of_calorific_value_of_fuel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/woxuwuvoximegixive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/sidadagekuwujezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7783/6702/files/fixukogunapepasevuvevefej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/vaxitaboro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/4313/2316/files/cello_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3013/4427/files/semonovigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9679/9384/files/banak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3903/8359/files/cash_flow_statement_project_report.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009662.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9662 5412 bytes
SHA-256: c0f5f78be1e8f1a18fe27918ccc9fbcbbe28dfd4e8d034da54cbbb73b2f74abd
font_01_sfnt_off0000a890.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA890 10300 bytes
SHA-256: e508ac8bd122cf53cc3747fe99c5e532adf48591e110e1a9d14fbb5432730e67