Malicious PDF — malware analysis report

Static analysis result for SHA-256 972205379ad8a847…

MALICIOUS

PDF

42.4 KB Created: 2020-08-15 20:42:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: add155544a82e4ec18f8338dc4eed6c4 SHA-1: 8fb6f9d30e65f59fc935c7a773c7e5dfe5b1a017 SHA-256: 972205379ad8a847ff3790a796c8a12b9430e9cca7bb96f7fab06416a3c16b65
234 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 a redirector service at ttraff.com. This indicates a link farm or SEO poisoning attack designed to drive traffic to malicious sites. The ML classifier also strongly flagged this document as malicious. No scripts were extracted, and the document body was heavily obfuscated, but the presence of numerous malicious links is sufficient evidence for this assessment.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=bluetooth+keyboard+android+tablet In PDF document text
    • http://files.esydave.com/uploads/1/3/0/8/130874495/9127119.pdfIn PDF document text
    • http://vivas.rosabransonandtheworlingtonmovement.com/uploads/1/3/0/8/130814328/9823276.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/1/0440/9799/4904/files/akfi_kabaddi_score_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/speer_reloading_manual_13.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/c_two_dimensional_array.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5552/1695/files/gokibemepuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5270/9526/files/lititz_pa_zip_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/morunitigikiwijep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/pdf_splitter_free_download_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9934/8389/files/samotazozenelidikeze.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 2

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_off00006919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6919 5092 bytes
SHA-256: 5d748aaa50767d8f22e928dc3880e1a100bb9a29b299cb2acc486514bf0c06fc
font_01_sfnt_off00007a68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A68 10116 bytes
SHA-256: 1114a69249b7e8b6de71a6384a5d25bdf4dc09493f63cef0e11811725440dc92

Open this report in the interactive analyzer, or submit your own file for analysis.