Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5fae9b79794cf1b…

MALICIOUS

PDF

46.3 KB Created: 2020-08-04 17:54:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59b5cc5d20b0b27347d8e07a42d16b76 SHA-1: 6d6c39826d6b78160910964e8fd9d0d0fd25d056 SHA-256: a5fae9b79794cf1b6109f69fde246f153fff0c5c17931d3252a68777801341e0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.ru/pify?keyword=java+swing+eclipse+tutorial+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure under the guise of providing a tutorial.

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=java+swing+eclipse+tutorial+pdf In PDF document text
    • http://files.my-mediamatters.tech/uploads/1/3/2/7/132740435/6028230.pdfIn PDF document text
    • http://files.auroraherbs.net/uploads/1/3/1/3/131382092/4821889.pdfIn PDF document text
    • http://files.kanelaandcompany.com/uploads/1/3/1/4/131406473/3117593.pdfIn PDF document text
    • http://files.theinvisiblerose.com/uploads/1/3/2/7/132740965/4a12c2c28.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/1/0437/3096/0549/files/89719867545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3096/0549/files/83295521300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4585/5137/files/52861024579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2574/4547/files/dabuwexotevuxidimiwevefed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pekazojifedabefotekufof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8751/8104/files/xefamonikevubug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8029/5334/files/99426519843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8674/9604/files/78202231824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/ligize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2657/9610/files/18380583206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8129/3221/files/52344626960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4098/1670/files/wuxusilazopoko.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_off000067fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67FE 5348 bytes
SHA-256: 88b30d8182fa2710e55fb38ed3ff07f595da46da76b0e86f44419e5472370d88
font_01_sfnt_off00007a4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A4A 10488 bytes
SHA-256: 06ea3cd628c7c78199fc7cbdc32e3361ee7f3008a3779460f9e5452bbc1fa030
font_02_sfnt_off00009e23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E23 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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