Malicious PDF — malware analysis report

Static analysis result for SHA-256 f96fb3943d6b7421…

MALICIOUS

PDF

44.1 KB Created: 2020-08-19 14:13:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 193336c9fc7be63c80b401026f350395 SHA-1: 9d145f8f332893877ffc950fec9f69f48e3932d7 SHA-256: f96fb3943d6b74217ecf3d2bc13c7e874caf3adf8593ba73fcc833b0f01add2c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and text suggesting a lure for 'asthma treatment guidelines pdf'. This indicates a phishing attempt where the user is directed to a malicious site upon clicking the link. No scripts were extracted, limiting further analysis of payload delivery.

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=asthma+treatment+guidelines+pdf In PDF document text
    • http://files.communiservenashville.org/uploads/1/3/1/8/131856039/27b20934dab.pdfIn PDF document text
    • http://files.bingocompany.net/uploads/1/3/1/3/131379612/d2857f2095895b.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/1/0431/5552/1700/files/kantian_moral_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9138/5758/files/12895405761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2734/6086/files/tesis_de_calderas_pirotubulares.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4665/8463/files/16043603988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8947/7273/files/dba_ciencias_sociales_version_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4863/8363/files/tesefojaselore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9799/0055/files/56604819311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0561/6026/files/davapowesitobasarosifulus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9898/6909/files/xorawafomujubijidog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6545/0389/files/research_terminology_simplified_paradigms_axiology_ontology_epistemology_and_methodology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2768/5798/files/metisitowor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4465/0651/files/xotokimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9066/4860/files/58356172114.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_off00006fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FEE 5444 bytes
SHA-256: a852a480237a392bfe64dcc4e403879ca76e5d62a6ccb2693cc6e09aa7045da4
font_01_sfnt_off00008241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8241 9740 bytes
SHA-256: 116446e7ae681885706f4310e921e77c63d75e0f15c85c090b644103c557f420

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