Malicious PDF — malware analysis report

Static analysis result for SHA-256 03c5532545342b34…

MALICIOUS

PDF

46.0 KB Created: 2020-08-29 23:55:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b6f4305c2261be3205c0cfaf13402d3c SHA-1: f435962f39b4c699f1ea236237bff1ec631caba2 SHA-256: 03c5532545342b34da5d88ce2a36efebbcbfe049830350b68f3efb4fd3aebcbc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, including one to a known malicious redirector at `ttraff.com`. The document body, though heavily garbled, contains the same URL, suggesting an attempt to disguise malicious links as educational material. The ML classifier strongly indicated maliciousness, and the presence of a redirector points towards a phishing or malware distribution scheme.

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/wix?keyword=factorisation+seconde+exercice+corrig%25C3%25A9 In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static.usrfiles.com/ugd/89c6ad_8b567c9728c84205bdaa855a31a384cf.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_fb7f2479483b46509ae1b8bf42284415.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_8d6882410fd848d0a33e1b415cfd021a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/97aff7_08b4713eb0c94a77b5472232dc0dda90.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_653b4965d3fb433f8d4c65a45cf23aa2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6988/9943/files/gre_analytical_writing_books.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/10b11f_d7d673b3603f4449a4158baaf9a26d69.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_5444f467fc5a44e5adaaa0d161119b7f.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0740/8290/files/68086908874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8788/7526/files/60805106321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7668/0870/files/abundance_peter_diamandis_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5407/8883/files/lupus_anticoagulant_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6411/2805/files/wifelobanixarekegudubit.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50D1 5028 bytes
SHA-256: 017a9964ca83a0218853aedc558d01016948a1ff10fea47ec6ff6a91e8261ecc
font_01_sfnt_off000061ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61AD 11128 bytes
SHA-256: cad8fdeebf071795e98f737ebb422f665cf129889f0b2c3d9741ab55e9ee4a68
font_02_sfnt_off000085f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85F4 16100 bytes
SHA-256: f12bcc42cb143e9cc41a08ef9f9c81c8a36c017982c073a20263204097028d61
font_03_sfnt_off00009ab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AB6 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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