Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba2fa4cbce16ea3c…

MALICIOUS

PDF

36.0 KB Created: 2020-08-14 01:21:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8361639025477dcd489911a593682e08 SHA-1: 545bb49a9d393c6511a4b610af49b068ee89b0db SHA-256: ba2fa4cbce16ea3cb0da5ad55f0d6353bccdd14236f3e4862285e27b3668cc72
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a malicious redirector link, https://ttraff.ru/pify?keyword=brahma+movie+video+songs+free, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm strategy to distribute the malicious payload.

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=brahma+movie+video+songs+free In PDF document text
    • http://lunadogex.loganfootball.com/uploads/1/3/2/6/132682663/87dd9752f245f.pdfIn PDF document text
    • http://files.coming-outofthedark.com/uploads/1/3/2/6/132695352/nudufilofise_linow_pininegomu.pdfIn PDF document text
    • http://mazus.stpaulsuccnola.org/uploads/1/3/2/7/132740214/bewudezobipix.pdfIn PDF document text
    • http://motop.dottisvintage.com/uploads/1/3/0/7/130738615/dibepuw.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/1/0432/3786/7687/files/arquitectura_de_software_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9462/files/fivuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/reduction_formula_for_integration_of_sin_n_x.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovovowegafakaroseras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6393/4105/files/javuzasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1699/3440/files/soxosesopoxagale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/wotezunafote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8493/0462/files/20555441800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4314/4355/files/australia_visa_form_1415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8362/8697/files/pabagepanojij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7900/7384/files/download_file_using_download_manager_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 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_off00004f50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F50 5396 bytes
SHA-256: 65f320f1ba8135b55b3392c9d7aa7fa459cf85579c484e30c6b00fe50bbe0c79
font_01_sfnt_off00006193.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6193 9844 bytes
SHA-256: b6269aea1c9df198f63af5a6376128f413986f5ad9bd15315a96e2adbe7e027a

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