Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb9baaeff2a99d2c…

MALICIOUS

PDF

41.5 KB Created: 2020-08-25 12:44:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1a2ab2049e62b2f3cb8a2761b1c5e0bd SHA-1: 56aaf63284ffc852911ad92c0d6557907a196c26 SHA-256: fb9baaeff2a99d2c43405717efe634a7e3d3a00821b15737e5e76b22dc7c86f0
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.com/pify?keyword=rational+vs+irrational+numbers+worksheet+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the intent is to redirect users to malicious infrastructure under the guise of providing a worksheet.

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=rational+vs+irrational+numbers+worksheet+pdf In PDF document text
    • http://mupafod.artandtattoo.com/uploads/1/3/1/8/131856190/6c8ba.pdfIn PDF document text
    • http://fujor.dcequestrianimports.com/uploads/1/3/2/8/132815045/nosozazimegem-fawopinaduwupok-lesekux.pdfIn PDF document text
    • http://lovul.lotusranch-homes.com/uploads/1/3/1/4/131454215/savupuvesun-jorunazan-muwamanija.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/1/0431/1416/8480/files/56570243124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/17094718981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1792/7837/files/3537708403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/47650945687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1058/0902/files/under_armour_teamwear.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5276/files/38168033797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5663/6828/files/56209969806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0530/3190/files/fazetidifanijixipex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5566/7605/files/traditions_and_encounters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4589/4816/files/benim_hocam_kpss_tarih.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6084 5644 bytes
SHA-256: cfdf6a9dcb3cdc987036cd1d6d716b0089b2c3e7715cc4894bff2918a6e0492f
font_01_sfnt_off000073a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73A1 10992 bytes
SHA-256: 299c95dcce44575f608c160880ef06c7c78a6992acd0d34b1c72e83a48ad71d7

Open this report in the interactive analyzer, or submit your own file for analysis.