Malicious PDF — malware analysis report

Static analysis result for SHA-256 e243c0c967fe2a11…

MALICIOUS

PDF

34.0 KB Created: 2020-08-22 15:55:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b8c0731ee7ce3c269f1b3332f97357e2 SHA-1: 88a0584c968eb4be1c55ebb749de9427cc079848 SHA-256: e243c0c967fe2a1125be3a7b7a5a5f197abb10759b33311122ed535b04911d0a
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains references to movie content and the malicious URL, suggesting a lure to drive traffic to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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=movie+counter+hd+movies+free In PDF document text
    • http://files.sarahconnatser.com/uploads/1/3/1/0/131070561/dogibenuwifix.pdfIn PDF document text
    • http://gijozu.cabarrusflyers.com/uploads/1/3/2/7/132740873/mekasegipege-sonuko-vomexisovibefo-penop.pdfIn PDF document text
    • http://figenipe.ddjohnsonassociatesllc.com/uploads/1/3/0/8/130814579/1931964.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/1/0434/0029/8648/files/56461677132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1425/7820/files/63367570705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8043/3302/files/multichoice_bursary_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4583/1335/files/cascading_style_sheets_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0842/9977/files/spelling_test_grade_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2940/5600/files/30567918191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4264/1832/files/6935265432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0843/1004/files/job_application_letter_sample_for_any_position.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3192/8740/files/19635903574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7456/8860/files/polobezitodowikugaxitisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8570/8953/files/voririsomikidak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5789/7882/files/samsung_tv_app_android.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_off00004803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4803 5084 bytes
SHA-256: eb0736b30d16a7da171f52c898b560a7f28a2d7987f786f8c0cda76896cea729
font_01_sfnt_off00005934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5934 10200 bytes
SHA-256: 6a359754a0240018256febc24dc831d0c455b27c0df5d8a6c699487f333fdcab

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