Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9f7461d51025f5d…

MALICIOUS

PDF

57.4 KB Created: 2020-08-08 01:55:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 965c2a80fca985e41cdf3663c72257f3 SHA-1: d8f12116a0b2adf2a928ae98941e1bee8955b7ee SHA-256: e9f7461d51025f5df13f12f1548f0a4ffb271c44fd27aaa726e8781625ce3f8b
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL, suggesting a lure for users to download a PDF. The presence of numerous external PDF links, many pointing to Shopify domains, indicates a link farm strategy to improve search engine ranking for the malicious content.

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.cc/pify?keyword=catholic+mass+readings+2020+book+pdf In PDF document text
    • http://files.bettingonasecondchance.com/uploads/1/3/1/4/131411474/5374328.pdfIn PDF document text
    • http://files.drewhooverphotography.drewhoover.com/uploads/1/3/0/9/130968988/gojorobexevikos-bigop-demazotivimiwos.pdfIn PDF document text
    • http://files.twobentspokes.com/uploads/1/3/1/3/131398059/6ec2ee6790fb8d.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/1/0437/4849/1425/files/balance_of_payment_theory_of_exchange_rate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dotalufakelani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1983/7345/files/zagadasinugukizewoganulet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2529/1674/files/78664790912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4116/0344/files/basic_calculus_grade_11_curriculum_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9963/5355/files/kojasowidusakodopoleli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6114/8832/files/convert_balance_sheet_to_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1234/1416/files/88943894129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0467/3699/files/legamewujamukefozop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0407/3880/files/76470120820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xibazukikamemawamiwemin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/66664626923.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_off0000a049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA049 5952 bytes
SHA-256: de4fc1425380d87bdad8b44468473672a587de9d997b580171cdde77f4a60dbe
font_01_sfnt_off0000b455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB455 10600 bytes
SHA-256: cfa1b8207d064862a8939094e127653fd4cf10746250e654e713f75dd8b1cd69

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