Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dc864ffc68f8341…

MALICIOUS

PDF

40.9 KB Created: 2020-08-25 09:42:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 35a83d9de88f709afd9c3ab032fc0657 SHA-1: 978ec00afdee05b0a8db93ecf4fc211d0d105f8d SHA-256: 0dc864ffc68f83416a8e9b4d7c3c832f6c7377c8958ade7569dcb3d6f213a6a2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and redirects to known malicious infrastructure, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. The embedded URL leads to a redirector that likely serves a malicious payload or leads to a phishing page.

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.ru/pify?keyword=tivoli+directory+server+administration+guide In PDF document text
    • http://fafip.artentwined.com/uploads/1/3/0/8/130874655/7cbb628596925.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/1/0430/8788/8535/files/81840537973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6337/8081/files/21146281727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4738/6264/files/sekifiwesasigufonun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4987/6630/files/92980266859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4609/2443/files/amber_white_noise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1510/0826/files/barron_s_sat_math_2_11th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7558/2617/files/jejutinisiputi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2858/6402/files/33082952565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8909/9942/files/14283092004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4495/4527/files/17033027948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8260/2914/files/ethiopian_new_comedy_film.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1806/6842/files/febujubeje.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 1

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_off00005a71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A71 5372 bytes
SHA-256: 896f738f07b7f96c86c69502f7f48c37ed84d0845147ae6070d30c26cfa28097
font_01_sfnt_off00006ca7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA7 13256 bytes
SHA-256: 0e9285bc4b1bd77d3eaec29a89c1430d648596457af4f8afb07dbf0d4f35f403

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