Malicious PDF — malware analysis report

Static analysis result for SHA-256 7137e7fe13498e8f…

MALICIOUS

PDF

42.6 KB Created: 2020-08-18 17:10:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff06dec86279e67545eca92e51259555 SHA-1: 82ace86d84f27518d54d34f6a5149e37fd6e2876 SHA-256: 7137e7fe13498e8f322d8180708a23843a0e4bf601e0e776720ba3ae1744d02d
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.cc) that appears to be part of a link farm. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF files hosted on Shopify. This suggests a campaign to drive traffic to a network of malicious or spam-related content.

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=tech+deals+android+authority+review In PDF document text
    • http://files.savebozeman.org/uploads/1/3/1/4/131408529/80336d.pdfIn PDF document text
    • http://files.maryvillegov.com/uploads/1/3/0/9/130969751/2dcedf.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/1/0430/9280/3744/files/63575422817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/kobolot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3630/2750/files/derinabonetulanofevaxipup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/86723598711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3192/8730/files/7152928027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2241/6029/files/introduction_to_human_ecology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0455/8488/files/94310358349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2172/2015/files/costco_return_without_receipt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5490/4997/files/psd_to_png.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2399/8874/files/kavujelawofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9744/7831/files/back_to_school_safety_tips_for_drivers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005eba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBA 5232 bytes
SHA-256: e8d78af0b089078d856f2a6dd3cf3731cdba7f63bcb8ccb3d79b6b2c15aef9d7
font_01_sfnt_off00007086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7086 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off00007914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7914 10472 bytes
SHA-256: f0d2b31f00188fa371667f6d9c341004d48374840dfa5eb25b7a4cce2a29f200

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