Malicious PDF — malware analysis report

Static analysis result for SHA-256 e64f02a8bcf480d2…

MALICIOUS

PDF

48.4 KB Created: 2020-07-25 05:26:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d09b361e10bd1c6d92df24f8d172992e SHA-1: 9a1f56f2ba6776a76e72825c6dbd619d860115a2 SHA-256: e64f02a8bcf480d2a31480d3c2c9d6788b17a22e7aa2400f901330b4160f0189
194 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to redirector infrastructure, specifically identified as a malicious redirector at 'ttraff.ru'. This infrastructure is used to host a large number of PDFs, suggesting a link farm or SEO poisoning campaign. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs confirms the intent to redirect users to potentially harmful 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.ru/pify?keyword=android+modal+dialog+activity In PDF document text
    • http://files.tallsycamorecampground.com/uploads/1/3/0/7/130740213/zajafi-pakanawaluzotem-nikunija.pdfIn PDF document text
    • http://files.caiweiyi.com/uploads/1/3/1/4/131408204/pilufanedijebigob.pdfIn PDF document text
    • http://files.kingdompower.org/uploads/1/3/1/6/131606666/xugipu.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/1/0436/3078/8758/files/zuletamarekasab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4104/4118/files/wixejivijobujelimonudimaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0683/5358/files/14406815647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1281/6039/files/sikopiloja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/11466877922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4085/8527/files/38178377781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8722/4214/files/56415741198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2938/8699/files/tavasanagujimoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9168/8610/files/semowafugab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2925/0719/files/fenilepemulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4922/0256/files/42186082565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6869/3411/files/47967562277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/83583068491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9423/7593/files/nojijopaviwewoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4632/9750/files/2102696908.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_off00007638.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7638 4904 bytes
SHA-256: 5476d0432a3a7f60552784e6f15b6dee307ba775b9ecf52a72a1687f7e17fb25
font_01_sfnt_off000086c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C0 14228 bytes
SHA-256: 93f6e648eaf83d04880453a12bb093939b99fa80cbac46ded7cbb051b2e4186f

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