Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bdd7243b190461f…

MALICIOUS

PDF

46.3 KB Created: 2020-08-25 03:42:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07ec364efff383f8e0e0bb316e256901 SHA-1: d3cc186ec942a90cbb3e67a59e38da951d3c2775 SHA-256: 5bdd7243b190461fb8db94ff7f7e621daa40a85bdec574e0502bc2b456969cc3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDF files, many of which are hosted on Shopify and appear to be part of an SEO link farm. The primary redirector link, https://ttraff.com/pify?keyword=excel+sheet+for+food+costing, is flagged as malicious. This suggests a phishing or scam attempt where users are lured by seemingly legitimate documents to malicious sites.

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=excel+sheet+for+food+costing In PDF document text
    • http://files.rockheightsvacationrental.com/uploads/1/3/2/7/132712209/2998679.pdfIn PDF document text
    • http://files.smilingelfsoap.com/uploads/1/3/0/7/130775470/6752491.pdfIn PDF document text
    • http://files.japan-trademark-patent.com/uploads/1/3/0/7/130775371/vegixuniwab.pdfIn PDF document text
    • http://files.jcprhac.org/uploads/1/3/0/8/130813906/kapopakazosorosa.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/1/0428/5906/9599/files/teamviewer_8_for_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3915/2535/files/98324167802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2748/8168/files/food_allergy_list_template_for_daycare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6842/3334/files/probability_distribution_matlab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1873/2191/files/seminufediduvozelopodife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0925/1240/files/business_risk_management_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/advance_further_mathematics_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4016/7320/files/simple_java_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7728/6565/files/goxipiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8066/3705/files/wufenujowilojiratuwuwise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8607/8369/files/24145078354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0911/3253/files/bewezopemep.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006395.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6395 5096 bytes
SHA-256: bdcf1e2bba63954179d23032d73dc3a51f68904c319034b738e3044ff78461d9
font_01_sfnt_off000074e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E3 9944 bytes
SHA-256: a45d73a0f68d7c086c1677b5fd403fb1fb453e944f48a2d9dc97d755d88119a7
font_02_sfnt_off00009719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9719 16144 bytes
SHA-256: 764fe263e68fd20aff2bbd96e69f5a400d440299d02096befa162391f913c7cf