Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0436bcd27acde2c…

MALICIOUS

PDF

37.9 KB Created: 2020-08-21 02:18:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d18e058da0ed045e7f41ec64995becbc SHA-1: 79ea597817ac58f90d5f1f2f2eb83b84379ef8db SHA-256: b0436bcd27acde2c378939689525ce1e112ab36e6853e8bf90c89671063d2d75
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are part of a link farm designed to deceive search engines. The primary redirector URL, 'https://ttraff.com/pify?keyword=cutter+guide+en+francais', is flagged as malicious and used in an image lure, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a lure for free downloads that ultimately leads to malicious infrastructure.

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=cutter+guide+en+francais In PDF document text
    • http://nafopu.scholasticlead.com/uploads/1/3/0/7/130775403/2e190.pdfIn PDF document text
    • http://files.divorcecoachingandconsulting.com/uploads/1/3/0/8/130874518/bejam-soselovorifat-tekumubobup-powidonuvewadar.pdfIn PDF document text
    • http://files.exquisiteair-water.com/uploads/1/3/0/7/130776027/0754f7ad9deb584.pdfIn PDF document text
    • http://xalin.robkajiwara.com/uploads/1/3/1/3/131383483/jolazijinibadinedegu.pdfIn PDF document text
    • http://files.stjosephwestphalia.org/uploads/1/3/0/7/130775724/3360978.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/1/0435/1462/6202/files/wefasadatidoduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/wetuwulurisusifeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3204/3943/files/pixasudixarox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3594/1274/files/cxc_chemistry_past_papers_multiple_choice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1966/5561/files/87901517890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/fejodidurudenudekedufixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3550/9415/files/adobe_acrobat_reader_dc_in_word_umwandeln.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/converting_to_word_without_adobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8660/9573/files/pikiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/benders_decomposition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7753/3856/files/topographical_anatomy_of_man.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7753/2824/files/duxitip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/47464778661.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_off00005855.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5855 5064 bytes
SHA-256: 2c7effe9a2e2003f314c6a4f58fdd25ca43013e109b87e59822910b39233819e
font_01_sfnt_off0000699e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x699E 9684 bytes
SHA-256: 759087f926aabcbd1d7e39ec8ed45d3c5ef70fd6e892dca7222ed76ae691d4ed