Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3d6c6b406e80b0…

MALICIOUS

PDF

56.3 KB Created: 2020-08-19 04:57:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10cec2d5b2b0fe3bff0d01c7f211fb74 SHA-1: 7f024a191eb8edaaea1083b4f3939345eb5cdb1f SHA-256: 4e3d6c6b406e80b0d416889e328b484c1f2bc22c0052e160a594110540dfd826
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.ru, which is used to serve the lure content. The document body, though heavily obfuscated, contains the same URL and keywords related to watching movies online, suggesting a social engineering pretext. The PDF also hosts a large number of external links, many pointing to Shopify, likely for SEO manipulation to improve the visibility of the malicious redirector.

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=watch+movies+online+free+app+for+android In PDF document text
    • http://files.rocksfestivals.com/uploads/1/3/2/6/132683357/3825780.pdfIn PDF document text
    • http://files.inthebeginningpreschool.org/uploads/1/3/1/3/131380094/bafejutasu.pdfIn PDF document text
    • http://dukek.twwrealestate.com/uploads/1/3/1/4/131406950/38a2ca5c8e9a.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/1/0435/2793/0011/files/github_overwrite_local.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0954/0257/files/aha_cholesterol_guidelines_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5407/8871/files/sap_basis_tutorial_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7546/0517/files/zalonomefilufenig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8100/6244/files/76260770284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6284/3797/files/anterior_cruciate_ligament_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/18569348807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wulusiwebope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/solakotunolidorawoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3434/3574/files/zirobutoxuzobesaki.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 3

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_off00009daf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DAF 5468 bytes
SHA-256: ff61a027d3ffbfe0e48ddd6a68465e3ed3709bf4d7d2558e2d0adc5dc8117723
font_01_sfnt_off0000b02a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB02A 10452 bytes
SHA-256: b9b96c7ab5a3f49ee1d4674fe9c0435090ab916201988e66c5986b9117bde5a5

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