Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b1947ae77e59128…

MALICIOUS

PDF

54.2 KB Created: 2020-08-30 13:07:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d90f8cf4ed75751541effc7d2fe3bd50 SHA-1: fed97bc43e3d532a909383d07dcb0edfa37a6d62 SHA-256: 0b1947ae77e59128fd6a096a4a07cfdfb69da36fb8101d0067b92151571e5bd8
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, ttraff.com, disguised as a download for "Brocade network os administrator s" information. This indicates a phishing or scam attempt, likely using a link farm to obscure the final malicious destination. The ML classifier strongly supports the malicious verdict.

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=brocade+network+os+administrator%25E2%2580%2599+s In 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/3b7182_7051b05ef31b4cc48d20e92e73c694f1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/784815_0a92b25231564277aee4492913e21801.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/02beb7_cca6f8f659d84878b7c5fb7a3823384b.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0570/5374/files/thrombophlebitis_treatment_guidelines.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/f459ea_3650d9f47bf741afbff8612966546c33.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_547b6c285d3e4beda19b1578de8cca8a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_afc8f188e4a548d1bacb7fcad7aeffd4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_cb50bacf17c14657b6e81bba35c5b07a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/432b07_366ce52f245d4f599f0690521d79c124.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2ac701_25224fe7c3e0406c877fba83f4d06d69.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3b47cb_2e1928773f464d4fba668f03436c0abb.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_7edd44ac085d4c6fa20bd1fb0a4a616f.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 7

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007dca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DCA 5308 bytes
SHA-256: 861791917e499d0d9e3b6abf6885ccc80294210118de9ba79ca04821b563c3a4
font_01_sfnt_off00008fdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FDD 10684 bytes
SHA-256: d09943672d711c0154d332fa386b67be1d85c307ae25477c79c58158c061bcd0
font_02_sfnt_off0000b459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB459 16196 bytes
SHA-256: 16841cd06245dfab0499788473f9c5e49459ecbf5940b4b59b8708d0fa28d68c

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