Malicious PDF — malware analysis report

Static analysis result for SHA-256 9266e3c452b6b4c9…

MALICIOUS

PDF

56.8 KB Created: 2020-08-10 18:50:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b80ed95bab9dd2ccdcb384bf2f94f55d SHA-1: 8b5221cd8557783f2b731d300d8198a7a068a949 SHA-256: 9266e3c452b6b4c99096773664e24205819437927df7023fc0a0f32323758a59
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier strongly indicates maliciousness. The primary attack vector appears to be social engineering via a deceptive link.

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.com/pify?keyword=business+proposal+sample+format+pdf In PDF document text
    • http://dunewesu.lakesuperiorsanctuary.org/uploads/1/3/0/7/130775795/5902341.pdfIn PDF document text
    • http://files.photosbywildwood.com/uploads/1/3/1/3/131398224/d1638605c7c.pdfIn PDF document text
    • http://lonetik.villatesoristjohn.com/uploads/1/3/1/6/131636664/7530504.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/1/0428/9835/8432/files/zurutadodusabexefiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0780/1501/files/40473886664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/bisiwer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8984/4637/files/bukotasazaxegitusited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5326/0701/files/1046614744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1822/1730/files/pre_calculus_12_student_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6749/0972/files/sahasra_ak_arabya_rajani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8147/9832/files/agriculture_mcqs_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1390/6327/files/neseratumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7300/9819/files/fulejobaginubowisorovusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/14890512271.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 3

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_off00009f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F47 5236 bytes
SHA-256: c15241d446a93710b60796ee1a4502a220d7cc24f947f15f036fcd4f14c8d7ce
font_01_sfnt_off0000b0f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0F6 10872 bytes
SHA-256: 46e81e09fdd52c2e6297cab917abdf491c77e1bcaf95f2393b607ec0bd7b4ac0

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