Malicious PDF — malware analysis report

Static analysis result for SHA-256 12ea2a4ff9f905db…

MALICIOUS

PDF

195.7 KB Created: 2020-08-26 18:25:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9f95423c17d65efa1a6a37f282f54c94 SHA-1: 50aaf6f15bf19776d52cfe567412232b4850b398 SHA-256: 12ea2a4ff9f905db565ecce5cba5924f6e900354b3e6fd47b5bc0042be1a5215
134 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, identified by heuristics as a malicious redirector and an SEO UTM redirector. The document body, though heavily obfuscated, also contains a reference to the same malicious URL, suggesting an attempt to trick users into downloading further malware or engaging in phishing. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.ru/pify?keyword=ella+minnow+pea+free In PDF document text
    • http://files.python-blue.com/uploads/1/3/1/4/131437756/bb5d20.pdfIn PDF document text
    • http://files.miortuk-alaskan-husky-kennel.com/uploads/1/3/2/6/132682829/xidowipew.pdfIn PDF document text
    • http://files.vk3sn.net/uploads/1/3/1/8/131871894/d40f274a4b81b4.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/1/0427/8022/9791/files/32326352221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4973/0727/files/jaxesutujajufofirog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8365/2506/files/lonosugabilurisebobuwola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9228/6363/files/vivabozisab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4986/0765/files/97789348682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1274/3580/files/61869768425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0957/1990/files/taresarolezemaxurikipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7783/6703/files/73277356076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/0074/3324/files/28793139742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9302/5183/files/rejepazuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/email_address_format_for_google_employees.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_off0002cb17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB17 4916 bytes
SHA-256: a7dee4816211efe0e374b7d64d1f7bf1c2521fc3a84717c4683467fc33638b65
font_01_sfnt_off0002dbd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DBD2 10720 bytes
SHA-256: bc73001442eb20682d988d634d581b1bfdf143f8dabcb51987c4830ce6769e38

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