Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b2d4ac6359ffb4d…

MALICIOUS

PDF

43.6 KB Created: 2020-09-11 04:49:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02f66c8ac024cf966608c8d4cb15898e SHA-1: ffbd5cade94a1ce3ce2cf8d5dd56340a1fe62f72 SHA-256: 9b2d4ac6359ffb4dd5d9a5d0dd195011025768edb95587edfe28c0f6b871314d
202 Risk Score

Malware Insights

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

The PDF file contains a lure for a 'Magento tutorial pdf free download' which is a common tactic for phishing or malware delivery. The embedded link directs to 'ttraff.com', identified as a malicious redirector. The file also contains a large number of links to other PDFs hosted on 'static.usrfiles.com', suggesting a link farm or SEO poisoning attempt to improve search engine ranking for malicious content. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/wb?keyword=magento%20tutorial%20pdf%20free%20download In PDF document text
    • http://kubopax.prime-peak.com/uploads/1/3/0/8/130814238/dekag.pdfIn PDF document text
    • http://fufisozi.tlcac.net/uploads/1/3/1/3/131398091/d0361cb8b395.pdfIn PDF document text
    • http://kolol.twigny.com/uploads/1/3/0/7/130775883/dafifuwitikizem.pdfIn PDF document text
    • http://bajal.provisopartners.com/uploads/1/3/0/7/130740073/kuwok_zezunizerir_piposu.pdfIn PDF document text
    • http://files.designbyllewelyn.com/uploads/1/3/1/3/131398542/zajifujosudipokuku.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/359e64_d2b004ca0f8f4f019aed85a3c241d673.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/16a96a_b20134f3c85840c6896b8e2faae9377b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2c76f4_74706c3348ad4f4fa701b8a9d8f3135b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bb05c1_11a688d0a64e4b62a086008761d35a75.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5ecadc_82d60a738efe40ad9d4279ecb3f23ae2.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a48928_7b12a5b322c34ecbb3a82476cb8f20fd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a48928_2286b214f20b4c058c7e29108c68cb16.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0ad6c7_8e1bb13375d54491bc8f327b712ea5d9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1f2646_13802e350f774ea2adaf0c98843c24f6.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b7082a_e44dd0be738243958bc6d89d3fdcac1b.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 7

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_off00006cfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CFB 5128 bytes
SHA-256: 3e627694db490e87a4aea12b51a372c70d9af2cee2fa740345871771ed3b2566
font_01_sfnt_off00007e9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9A 10068 bytes
SHA-256: 945cf7bb5a5672c0936f78ba4067acc0f88f72fe421aa1d4dc8ca2df2baee84a

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