Malicious PDF — malware analysis report

Static analysis result for SHA-256 868c5cf38d360112…

MALICIOUS

PDF

45.7 KB Created: 2020-07-29 19:35:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 27bf9e18a1fa7b195cf65cbf8fccc741 SHA-1: ee73bead0395d47e4d9beff8aa4fabede7c40431 SHA-256: 868c5cf38d360112874577c65e3651e59d59c2ec12cd051dbc015afbd03026b9
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it is a malicious redirector, specifically designed to lead users to potentially harmful websites. The embedded link `https://ttraff.cc/pify?keyword=amplificateur+de+brillance+pdf` is flagged as a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'amplificateur de brillance pdf', likely a phishing attempt to disguise malicious links as legitimate downloads.

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=amplificateur+de+brillance+pdf In PDF document text
    • http://files.alleghenybuilders.com/uploads/1/3/0/9/130969254/tobebomam_rewekibamakob.pdfIn PDF document text
    • http://files.magicvaper.com/uploads/1/3/0/7/130775245/duzom.pdfIn PDF document text
    • http://files.eastafricanscholarsfund.org/uploads/1/3/0/7/130776718/vemofuva.pdfIn PDF document text
    • http://files.hillfarmhistoricalsociety.com/uploads/1/3/0/7/130739274/300732.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/1/0432/2518/6466/files/40521236071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1149/6347/files/laronowezizobip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4836/2399/files/wasuduwapajaxakosulibok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1157/8776/files/dufinejedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7613/2774/files/bikojezemubifawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/mogejekisakinaret.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3840/7845/files/63574181169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0200/3609/files/gobupijugitesamakepuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5778/9593/files/titafezusepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/sidetikusofekiwegegiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/wupozemiwigogojixema.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_off00007149.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7149 5024 bytes
SHA-256: 5934696e9f72df3d8f7a873f143f3b5ac22ee04722b080109ef52f69f1c2230b
font_01_sfnt_off00008235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8235 11860 bytes
SHA-256: 4c994f18d6e5309876d26e3a0d714f0f91c91bd23a0430b5d76596c772c35a01

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