Malicious PDF — malware analysis report

Static analysis result for SHA-256 895dba946dc07879…

MALICIOUS

PDF

48.2 KB Created: 2020-08-10 22:29:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 19bd292504d4b89c1863549ba0a7d8b7 SHA-1: 6aaa79bb0afe6fbc72e39138954e88d2470ee248 SHA-256: 895dba946dc0787969285e9ddb338771fc59a5b30c317ada74910bd460b6b786
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service known for malicious activity. The primary redirector URL, 'https://ttraff.cc/pify?keyword=physically+based+rendering+pdf+free', is designed to lure users with a seemingly legitimate download. The presence of a link farm and the ML classifier's high confidence score indicate a malicious intent to distribute further content or malware. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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.cc/pify?keyword=physically+based+rendering+pdf+free In PDF document text
    • http://files.botarlaszlo.com/uploads/1/3/1/3/131397950/4405481.pdfIn PDF document text
    • http://gumuf.graceumchurch.org/uploads/1/3/0/7/130776031/8796245.pdfIn PDF document text
    • http://files.whistlingfrogresort.com/uploads/1/3/2/6/132681002/masaberilanimubaloji.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/1/0429/9282/8579/files/70058494938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7777/9100/files/las_frases_mas_comunes_en_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9542/5191/files/58394549262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4772/1892/files/microbiologia_veterinria_dwight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/tasopurawasiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7500/9696/files/calligraphy_practice_sheets_tombow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73807437975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7284/0090/files/kajelisad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/33780503476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1177/6416/files/jusopad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1384/7710/files/tanezutuwodejukunurabidu.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_off00007ceb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CEB 5660 bytes
SHA-256: cb80578d11676b4065cea2dd6cb566cd40fe18d8ffa23273e82e1aa55032577d
font_01_sfnt_off00009014.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9014 10468 bytes
SHA-256: aaada90f362392577e127202d3c7383725a74c668ef5beee967346347c2d6122

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