Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d7195c67a886f70…

MALICIOUS

PDF

56.0 KB Created: 2020-08-11 19:32:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e383624d435612a247581a4ce42da1a SHA-1: 88d7de78319cd656763227ec94ba8ab1a4875e49 SHA-256: 7d7195c67a886f70596f015c2145bcfa414be3f3fa276da9f3b62ec6ee3f291e
214 Risk Score

Malware Insights

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

The PDF contains a malformed stream and links to known malicious redirector infrastructure, indicating an attempt to deliver a malicious payload. The embedded URLs and the document body suggest a lure related to business documents, likely for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious.

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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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=acta+constitutiva+de+una+empresa+formato+pdf In PDF document text
    • http://files.hamptonsgarage.com.au/uploads/1/3/1/8/131871739/vivunemefeluzeti.pdfIn PDF document text
    • http://files.oregonepermitting.com/uploads/1/3/1/4/131453193/2326286.pdfIn PDF document text
    • http://files.nelecreativegroup.com/uploads/1/3/0/8/130814169/2360623.pdfIn PDF document text
    • http://files.sheeshees.com/uploads/1/3/1/4/131437949/3851781.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/1/0433/5196/5855/files/xevof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5461/1102/files/zetunoxawadazuxifesip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2449/9367/files/jukapal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4461/6864/files/pukisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5517/6097/files/abigail_adams_remember_the_ladies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0261/0335/files/23691435239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5406/9910/files/royalty_accounting_journal_entries.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5868/3295/files/67173152320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5897/8207/files/zavuxilomivipomutipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8222/5566/files/sesudejedupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tuwaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6763/7922/files/faxaliruxemurukezizexat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2253/2251/files/different_types_of_capacitors_and_their_uses.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 7

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_off0000997d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x997D 5316 bytes
SHA-256: 4995d211c766583b06d675b912c14e0707c313858b143eec5f1a862f40579e59
font_01_sfnt_off0000ab7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB7E 11696 bytes
SHA-256: 2e8469e039b5bf688d6aa58c2406e4fb9515efdcaf050d8a71f091a89cdd1348

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