Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d575730a4408a85…

MALICIOUS

PDF

42.9 KB Created: 2020-09-19 10:08:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 13ab49d8f9449c42709ddbcb1a0f3ebd SHA-1: 6846dca75b7d1a3b92832f6d4b64d93d9200520b SHA-256: 7d575730a4408a857a2c026364d8e89b279806a2edc429dde8de9ad2a592b79c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary link, https://ttraff.me/wix?keyword=g%25E1%25BA%25A1o+n%25E1%25BA%25BFp+g%25E1%25BA%25A1o+t%25E1%25BA%25BB+t%25E1%25BA%25ADp+108, is identified as a malicious redirector. Additionally, a large number of PDF links were found, suggesting a link farm intended to direct users to potentially malicious content or phishing sites.

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.me/wix?keyword=g%25E1%25BA%25A1o+n%25E1%25BA%25BFp+g%25E1%25BA%25A1o+t%25E1%25BA%25BB+t%25E1%25BA%25ADp+108 In PDF document text
    • http://files.catlinsdiscoveries.com/uploads/1/3/2/7/132712323/mowaj.pdfIn PDF document text
    • http://vipekoz.holistichealingspa.com/uploads/1/3/0/8/130873995/39183.pdfIn PDF document text
    • http://rawozeref.debbieyoung.co.uk/uploads/1/3/1/4/131406798/8193974.pdfIn PDF document text
    • http://pawuze.outofthedarknessministry.com/uploads/1/3/1/8/131857090/827e6b0b6982f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://ab25de4c-3fa7-41c9-9194-8520f64d2c14.filesusr.com/ugd/2274a7_9897960c5fc5494587b94edc8ab13667.pdf?index=trueIn PDF document text
    • https://a3ec7824-9e52-4b1f-b1e0-159ac94220b0.filesusr.com/ugd/cd1d52_4628f356209d4746900d15c199800fbc.pdf?index=trueIn PDF document text
    • https://91712619-9ce0-460f-8a1c-3202fdbd2ba4.filesusr.com/ugd/9c8fb9_852c8b011fbc470088cc74e2431b0ab4.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0981/8272/files/79341688581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8402105605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5734/7749/files/83593986651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/4685/8652/files/62045475324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1832/8991/files/46263884235.pdfIn PDF document text
    • https://2a0c804f-fc00-4916-a457-7da31965b1ea.filesusr.com/ugd/6fd45c_7fa26d88b1e145dfb1587ae468d0b13d.pdf?index=trueIn PDF document text
    • https://6cdcb771-820a-4583-877e-6bea40641132.filesusr.com/ugd/e1d12c_4b4edc50ecb94248ab2dae3473e3e40a.pdf?index=trueIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C5B 5720 bytes
SHA-256: 0b1895c0f8cdf87a019d28212001cd6b469e69be86a2562f61b78a1ea5c02cbc
font_01_sfnt_off00006ec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC4 21612 bytes
SHA-256: d569fdb0d892680881ccd20dd6c81523e00bc0ffd8d2c255b9efdc74f1668214