Malicious PDF — malware analysis report

Static analysis result for SHA-256 837fe07fbb7a6e2a…

MALICIOUS

PDF

42.7 KB Created: 2020-08-08 11:00:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3befe95acf0b0f9c456c618197613a9a SHA-1: 1a4b5be65cb827388d2f4d964d5e50342a711558 SHA-256: 837fe07fbb7a6e2a6f47c6f8e2583e50106255526ed87f86019fa260db32df6a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous links designed to create an SEO link farm, with a primary redirector pointing to malicious infrastructure. The embedded URL 'https://ttraff.com/pify?keyword=history+of+islam+timeline+pdf' is identified as a malicious redirector, likely leading to a phishing or malware download site. The ML classifier strongly indicates maliciousness, and the overall structure suggests a phishing lure disguised as a document.

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=history+of+islam+timeline+pdf In PDF document text
    • http://files.photoscopestudios.com/uploads/1/3/2/7/132740536/f21d525e3.pdfIn PDF document text
    • http://files.frcgordon.org/uploads/1/3/0/7/130776657/7724960.pdfIn PDF document text
    • http://files.sagewindowcleaning.com/uploads/1/3/1/0/131070911/pebumup.pdfIn PDF document text
    • http://files.shorelinesolutions.ca/uploads/1/3/0/7/130776483/b6cb605a927.pdfIn PDF document text
    • http://files.smilinggrape.com/uploads/1/3/2/6/132695336/30765274.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/1/0432/6785/0390/files/28263389538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5745/3985/files/bank_treasury_management_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/78703367913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6513/0660/files/directv_hr54_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7369/1045/files/preterito_perfecto_de_subjuntivo_ejercicios_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1659/1272/files/96386196674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1490/6279/files/96449731212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1786/1277/files/bedikamelebaxujixukilon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/puwapotezugutav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7922/0891/files/86370005779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4074/3330/files/82502738401.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 7

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_off00006a5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A5E 5248 bytes
SHA-256: 10be5f2a96ebf3c8808f1744d65384cdc00bf416de223f98eb62f5b2f1fcf591
font_01_sfnt_off00007c28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C28 9908 bytes
SHA-256: ad439277d151c02f42b4b54d6813455bb8fab733586cca09bf9d4624260cf236

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