Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f1defe8359c13c8…

MALICIOUS

PDF

47.2 KB Created: 2020-08-18 15:59:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b4c303f918006eda115672db408b6f6f SHA-1: a322a3e0f7082027d1cddb88e9df5bdf6d042e7d SHA-256: 8f1defe8359c13c8b9bf34b8bf2c368fef8b8c4b3518b7cc359c105a1d57e238
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a high number of embedded links, many pointing to external PDF files, a technique often used for SEO poisoning or to obscure malicious redirects. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a link to 'ttraff.com', indicating a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=bitumen+test+pdf', confirming its use as a lure. The presence of numerous shopify.com links suggests an attempt to blend in with legitimate content while distributing malicious links.

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=bitumen+test+pdf In PDF document text
    • http://vowogepun.thethreefoldcord.org/uploads/1/3/0/7/130740496/fefimagupovite.pdfIn PDF document text
    • http://files.alpinedesignsmt.com/uploads/1/3/0/7/130776368/dogipasero-wawusumi.pdfIn PDF document text
    • http://lidaxetov.our-perspective.com/uploads/1/3/1/6/131637284/piwaxixevu.pdfIn PDF document text
    • http://files.mar-pascual.com/uploads/1/3/2/6/132683328/vuwevasifupuva-jetozoxaja.pdfIn PDF document text
    • http://rebegiman.horsetoheart.net/uploads/1/3/1/0/131070374/paruluvi.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/1/0427/9202/6271/files/geforce_6150se_nforce_430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2447/4531/files/53102670796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/1834/8712/files/corbett_maths_angles_in_polygons_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2381/1239/files/zibexus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9503/7854/files/53411255134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6604/0224/files/el_chac_mool.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6196/7013/files/67538986147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7716/3426/files/79002292208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5171/8558/files/refitozusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/87348617860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8461/9680/files/27532648316.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 8

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_off00007c8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8A 4896 bytes
SHA-256: 124af9f925a82193914975607ca3729deb92fd80a2043c264738af5a4de05925
font_01_sfnt_off00008d23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D23 10180 bytes
SHA-256: cf5373b51471da2a074bfbeea68692920d598e885b701ad0cc18efd8bf17fce5

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