Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea043afbc762d043…

MALICIOUS

PDF

41.8 KB Created: 2020-08-10 22:43:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66cb833af1aeba738990e74bea55f70a SHA-1: cfefba0d8962ca0c1d5dc085b5451cf92d5f9b7f SHA-256: ea043afbc762d043504c1f91b0229beb41a7cf03e8c2b119e354b042ecabc250
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external PDFs, a technique often used for SEO poisoning or to obscure malicious destinations. One critical heuristic identified a link to known malicious redirector infrastructure at `https://ttraff.cc/pify?keyword=the+encyclopedia+of+ancient+egyptian+architecture+pdf`. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The file's purpose appears to be directing users to malicious content via this link.

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=the+encyclopedia+of+ancient+egyptian+architecture+pdf In PDF document text
    • http://files.thepitchthemovie.com/uploads/1/3/1/4/131437657/potiku_xanuno_jupujivunep_vafilodikobo.pdfIn PDF document text
    • http://files.hramusicwest.org/uploads/1/3/1/6/131606984/1103597.pdfIn PDF document text
    • http://files.counseling4less.com/uploads/1/3/1/4/131406663/8e015fc6.pdfIn PDF document text
    • http://files.yogawithieva.com/uploads/1/3/0/9/130969809/0982abf33b888.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/1/0434/1035/8439/files/sidelorigad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7598/3778/files/titukiviwugisemuwuzez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9234/files/tobunavazewevasode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5939/4213/files/xisoridoxuzedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2839/7727/files/england_flag_2015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9096/7714/files/aashiqui_2_all_songs_lyrics_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4020/2142/files/94455318041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2806/7990/files/61063744085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/blockscad_tutorial_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5588/1115/files/definicion_de_cualidades_fisicas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0741/8273/files/65656521928.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_off0000665e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x665E 5292 bytes
SHA-256: 6afd6a74da22b30c662eeb155cd5cc903e1db294088f59e7c794df89b4b934af
font_01_sfnt_off00007857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7857 9752 bytes
SHA-256: 2294b4ec7848c044ced445201acf7faed92f3af45585ff169907ed32c864c06a

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