Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec2769da2a081c25…

MALICIOUS

PDF

63.6 KB Created: 2020-08-08 18:18:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 94c242395970728374bea2e18971ba00 SHA-1: 4ac6bd3769565582b66fecda572cada44c6bdf88 SHA-256: ec2769da2a081c2525f312f728b81932f06aabb700671a2be8668701b8b892a1
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically identified as a malicious redirector pointing to 'https://ttraff.com/pify?keyword=o+liberalismo+contempor%25C3%25A2neo+antonio+paim+pdf'. This indicates a likely attempt to direct users to malicious content or phishing sites. The presence of a link farm further supports this malicious intent.

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=o+liberalismo+contempor%25C3%25A2neo+antonio+paim+pdf In PDF document text
    • http://sasuvodo.1320am.com/uploads/1/3/1/4/131453540/effef88f0.pdfIn PDF document text
    • http://files.oboeandbassooncamp.com/uploads/1/3/1/4/131437865/20d7062beb9dcd0.pdfIn PDF document text
    • http://maset.samuelpakart.com/uploads/1/3/0/7/130776257/2596530.pdfIn PDF document text
    • http://files.coasttocoasthauoratrust.com/uploads/1/3/1/6/131606429/nodopilaletigijig.pdfIn PDF document text
    • http://files.bendavidsonministries.com/uploads/1/3/1/0/131071252/196a61b56c045.pdfIn 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://cdn.shopify.com/s/files/1/0436/9648/8613/files/84246130046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6128/8868/files/77537325590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5562/1031/files/40107130315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0023/3112/files/terigub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9113/1557/files/kadabatibubeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3400/2086/files/7140408782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2721/0144/files/the_dark_side_of_globalization.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7652/5984/files/34079307609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0831/0943/files/is_there_any_video_editor_without_watermark.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8568/4124/files/offensive_security_certified_professional.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/paposiruwinifipedinuz.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 6

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_off00009e8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E8D 5496 bytes
SHA-256: 31d1d6dae1153c35aa1d401bcb5c0b0385def628fb4d64d4994752e0cd6f431a
font_01_sfnt_off0000b089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB089 16772 bytes
SHA-256: f883b360d014de130dba116f4e4e9978a47bad103af9885a4aade5a07011258c
font_02_sfnt_off0000e0f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F3 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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