Malicious PDF — malware analysis report

Static analysis result for SHA-256 f647d42b758fc0f4…

MALICIOUS

PDF

34.0 KB Created: 2020-08-05 22:44:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a8610c96bd02c41875fe737944e9026 SHA-1: b06a361f38b1ae83b3e04193383073a05e6cd439 SHA-256: f647d42b758fc0f4a2f81a348d9c3df6cd271cca5e852b824b04c7ad4ed463f0
214 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a 'catalogue' lure and includes the malicious URL. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy. The primary malicious URL, https://ttraff.cc/pify?keyword=perforated+cable+tray+catalogue+pdf, is likely used to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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=perforated+cable+tray+catalogue+pdf In PDF document text
    • http://files.cherylbrowndesigns.com/uploads/1/3/0/8/130874381/kibuwopex_weluxili_vutabuk_zumoro.pdfIn PDF document text
    • http://rojowo.earthdaystinsonbeach.org/uploads/1/3/2/6/132681670/doruludosa.pdfIn PDF document text
    • http://files.moabgearheads.com/uploads/1/3/1/4/131483184/reboxumam-pabifeletos-navalolojamob-tamimok.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/1/0435/6617/0271/files/33905061618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3098/5376/files/42162243221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4863/8363/files/network_topology_lecture_notes_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8330/8955/files/64317236919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2338/4219/files/classical_adjoint_of_a_matrix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3664/7317/files/68886716944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1455/3763/files/66529004567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/temufaxilagig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51108684678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1057/5771/files/ad_d_chronomancer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3391/9645/files/43041014321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4418/3970/files/judavozet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2606/9157/files/44707611726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9812/9059/files/61792424166.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_off000046eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46EB 5388 bytes
SHA-256: 731fd18ec7808be13a9066a64bd06f27b9c68d9bd9348e5126a8ef6cfb32399c
font_01_sfnt_off00005956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5956 9376 bytes
SHA-256: 2e259d8059eb664d42940794335df79f904a343b2633a7b5e2c74e40b3dc279c