Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a4e02b361a22bef…

MALICIOUS

PDF

42.3 KB Created: 2020-08-02 18:19:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9c7d4649f61fc7f08511e3e9205cc833 SHA-1: 1a70c40a6fff31ab6430bf2c1f4a17af5fd0b534 SHA-256: 5a4e02b361a22bef02252c0ec6a56c03d32e3bfc8d9bfe757cc75d102862dfaf
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body also contains a lure suggesting the user should copy/paste content, indicating a potential command execution attempt. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=uninstall+tomcat+7+ubuntu In PDF document text
    • http://files.serv4all.org/uploads/1/3/1/3/131383342/0a27d02e.pdfIn PDF document text
    • http://files.sb-defense-lawyer.com/uploads/1/3/0/8/130874431/9ef1d2bf17b.pdfIn PDF document text
    • http://files.signsbylynn.com/uploads/1/3/1/4/131483317/kolib.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/1/0431/2439/2087/files/31958226543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2247/5687/files/fojunekafijutur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5889/6802/files/67351804986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5529/8213/files/mafowade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7678/6078/files/47957178393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5955/2155/files/73427851675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6434/5255/files/tevosisof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0881/8333/files/redoganobitene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3485/4051/files/pivobor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9581/8404/files/safinuwibipajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8180/9558/files/30068827772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8962/9085/files/pocket_tanks_deluxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/28515206837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5819/1768/files/babuwezifobaritixugakow.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_off00006816.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6816 5060 bytes
SHA-256: 01f2516435b978d9d3653fbd2233b8e75cf6862855a31bec5589596f110cc2aa
font_01_sfnt_off00007946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7946 10216 bytes
SHA-256: 9e2dec7aefd6d7425b167a3f423fdcc999493af6432b233d6ec604f97c1d433a

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