Malicious PDF — malware analysis report

Static analysis result for SHA-256 eec3077d85d1f36b…

MALICIOUS

PDF

42.0 KB Created: 2020-08-07 18:04:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0fe8e8eb1d46d647ef8506ac3a491c71 SHA-1: 4e564d443e9876bfaabd0c89c3f70dd79f068435 SHA-256: eec3077d85d1f36bd3bb7d2e5e326cd0952b5566ca07b6014097ab5e81c45223
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL that triggers this heuristic. The primary attack pattern involves redirecting the user to malicious content via the 'ttraff.com' domain.

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=beautiful+in+white+chords+piano+pdf In PDF document text
    • http://files.yuniverse.ca/uploads/1/3/2/6/132681392/9417466.pdfIn PDF document text
    • http://files.amadauniversity.com/uploads/1/3/1/6/131636584/rudesetogevif.pdfIn PDF document text
    • http://files.ofrenchpolishing.com/uploads/1/3/0/7/130775103/52413.pdfIn PDF document text
    • http://files.jeremyboulton.com.au/uploads/1/3/0/9/130969045/0ed3a91b9dbbb.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/1/0433/1280/8091/files/99324874033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3525/5203/files/toro_22_recycler_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8374/9781/files/faduxeroj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6305/0394/files/74079186987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5672/6170/files/dr_ambedkar_books_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9550/6592/files/zugupavodexuxovivuwosiroj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ledoviz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xumilegimazuguvabunozanik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/pnpk_abortus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/18398721093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7555/9829/files/meparimuvogevenatolux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/bixeguwasafuwutipuxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/lozedivoluj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8564/3420/files/convective_and_local_acceleration.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005409.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5409 5264 bytes
SHA-256: 8ed1798ef5bd7f5a6aa31a9130507af0b1d60e92302c3d81023a851c984b021f
font_01_sfnt_off000065f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F5 12272 bytes
SHA-256: 93868a35bbe7e45eda520673accc28321f7cd96a7d0aa680269aa18aeb123b3e
font_02_sfnt_off00008cda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CDA 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2