Malicious PDF — malware analysis report

Static analysis result for SHA-256 686bca428560ac5d…

MALICIOUS

PDF

47.6 KB Created: 2020-08-04 07:56:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0ae95265703c79d5c11f198373a0faf1 SHA-1: 0d22a8655218e9c06c221cbf036282554836550b SHA-256: 686bca428560ac5d60ab9242f48e994d8408bbc6230f0f4f604429f21f411d9f
194 Risk Score

Malware Insights

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

The PDF contains multiple links, including one pointing to a known malicious redirector, ttraff.com. This redirector is used in conjunction with SEO-optimized PDF links, suggesting a phishing or scam attempt to lure users to download potentially malicious content. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=vineland+adaptive+behavior+scales+2nd+edition+pdf In PDF document text
    • http://files.chelseafamilyfitness.com/uploads/1/3/0/7/130775806/gifav.pdfIn PDF document text
    • http://files.management-star-class.com/uploads/1/3/1/4/131453198/b879ac6ab4f9.pdfIn PDF document text
    • http://files.wanderwellfitness.com/uploads/1/3/1/3/131378943/9887214.pdfIn PDF document text
    • http://files.matchmypartytheme.com/uploads/1/3/1/1/131163736/3178404.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/35510743869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5834/0774/files/27464170729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/rijox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8202/8958/files/ziruxafufufunoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1466/7934/files/kutejona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0776/9750/files/zepugiratixizut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/xonelugega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63912397784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2436/7266/files/58209211587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7987/6252/files/23637203803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/cabotage_laws_of_the_world.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4621/4564/files/41286633605.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_off00006a8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A8E 5328 bytes
SHA-256: 8c3de852e41c007eaa0ad621d1dba4a59191f28f8d52900c219ab8474f379890
font_01_sfnt_off00007c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C9B 11432 bytes
SHA-256: 9a03c7bf8f4584b35d9c3b75dfe02d707320917ea2e07a1c76ecda44ab7a81cd
font_02_sfnt_off0000a26e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA26E 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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