Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eab8d295a8d332a…

MALICIOUS

PDF

65.5 KB Created: 2020-08-18 17:52:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eab15f2bf4c2e93c5fa9f7501292f4f2 SHA-1: a37c0697d5a94417fd4a35c8c6024a436f28d93c SHA-256: 5eab8d295a8d332a4a62718bc2ba812c3689f8abbf6fc381041d0a6f0981fef9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to redirector infrastructure, specifically 'ttraff.cc', which is flagged as malicious. The document body and heuristics indicate a lure for free downloads, likely a phishing or malware distribution attempt. The presence of numerous external PDF links further supports this as a link farm for SEO-based redirection.

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.cc/pify?keyword=ways+of+the+world+third+edition+pdf In PDF document text
    • http://wuzosexop.revistaperiferia.org/uploads/1/3/0/7/130738730/gorakeraluk.pdfIn PDF document text
    • http://latileb.carpetcleanoahu.com/uploads/1/3/1/6/131607575/2f1e94ddb.pdfIn PDF document text
    • http://files.scope-for-growth.com/uploads/1/3/0/7/130775952/3e3c641.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/1/0434/6504/8229/files/bnf_bnfc_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/didoxetukubametevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/dipivezudufazomigowile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1791/0944/files/marathi_calendar_2020_october.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0877/6600/files/astm_a572_grade_50_standard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2491/6388/files/15683842455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2537/5130/files/88484427388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5671/6183/files/13877857257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/peta_bulatan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1571/4469/files/drake_all_me_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2392/4376/files/rabapuw.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c108.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC108 5336 bytes
SHA-256: ae826fce0e5aaf6f32ab51348fa1fef9540017fc4d47962797aac49212dc04a2
font_01_sfnt_off0000d343.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD343 10608 bytes
SHA-256: 541547cb6cf788ebf60d2c0daae541e2d70e48d9f0f1e50def0882e291365e27