Malicious PDF — malware analysis report

Static analysis result for SHA-256 cae18b107e6238d2…

MALICIOUS

PDF

55.8 KB Created: 2020-08-15 18:40:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 589a86bee8bdb4a63ffca13addeb9e88 SHA-1: 821228a267ef7c67828448548fd42d0cedfdcd4d SHA-256: cae18b107e6238d21774d8386d68ddae7b4ff236d1dbc04235190fa2d0c32f1d
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lead users to further malicious content. The document body, though heavily obfuscated, contains text related to 'Federalist 51 guided reading graphic organizer answers' and includes the malicious URL, suggesting a lure to disguise the malicious intent. The presence of a link farm heuristic further indicates an attempt to distribute malicious content.

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=federalist+51+guided+reading+graphic+organizer+answers In PDF document text
    • http://files.veronequeignace.com/uploads/1/3/1/3/131380467/vurebutokokomodiruji.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/1/0429/9256/6435/files/savijezirawiwiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/75759951759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4951/7205/files/3378384739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9592/4637/files/jezuzoridenenenevekodeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/active_passive_sentences.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8683/4851/files/berarakawuzokenalaporarik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6145/0654/files/12684081124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6809/4629/files/rinorusovoletegaduxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/telugu_academy_books_for_intermediate_1st_year_botany.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 1

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_off00009c16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C16 5608 bytes
SHA-256: 4a79e60fb3f8080ff2774072a32417ebc49602ba5cd75b7b5a7ce81fec718de3
font_01_sfnt_off0000af36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF36 10440 bytes
SHA-256: d301aec4a37f2cd861760a3d52185000a6ecdc9bdd03c8ff941cf82e9b2ca031

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