Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6f6be65a0ed0e84…

MALICIOUS

PDF

34.7 KB Created: 2020-08-10 04:00:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 870044c862fcb774a2170778bc7769f4 SHA-1: 060220f6d25823480f7b65f92d22e000a78b7b78 SHA-256: c6f6be65a0ed0e842696b90d7d257605bef054dae6682e41919d180247fa5565
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=aesculap+neurosurgery+catalog+pdf'. This URL is embedded within the document body, disguised as a catalog. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify. The primary intent appears to be redirecting users to malicious infrastructure through a deceptive lure.

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=aesculap+neurosurgery+catalog+pdf In PDF document text
    • http://files.ipropertiesjkt.com/uploads/1/3/1/4/131407877/2077166.pdfIn PDF document text
    • http://files.upwardspiralcc.com/uploads/1/3/1/3/131398308/6416517.pdfIn PDF document text
    • http://jezexikag.springvalleygirlssoccer.com/uploads/1/3/1/3/131383483/13dff.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/1/0429/8525/9159/files/88462092781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/96881475786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5625/9491/files/56273567156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3077/2902/files/principles_of_accounting_11th_class.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5699/6247/files/govut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3909/5973/files/fodokijune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9673/3864/files/nenodidevajetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1961/6935/files/44573362516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0638/5558/files/tinusazawonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0757/3157/files/fibexewimojib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7826/2689/files/backtrack_5_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/63220338722.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 5

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_off00004a76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A76 5416 bytes
SHA-256: 3351785f277e68d00ce25135a17c6332d5e0bec21abdf95007e065b3ebe5d0ce
font_01_sfnt_off00005d00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D00 9608 bytes
SHA-256: 843215a9c12c7442c92ed1fa7f213248f93e7719d2068c1a96bc8c440e15f0f8

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