Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae41be93817033e6…

MALICIOUS

PDF

35.9 KB Created: 2020-08-08 05:48:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0e48275f40d943c6ccbe0eb2b692626 SHA-1: b67f80f98c8df9320dee31cd2635befb5791750c SHA-256: ae41be93817033e6d420a497a125d0c03b4c2cdf6ab2984042bd25b6a345c818
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, including one pointing to a known malicious redirector. The document body and heuristics indicate a lure for free downloads, likely leading to a phishing or malware distribution site. The presence of numerous external PDF links suggests an attempt to manipulate search engine results for malicious purposes.

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=breves+cuentos+hispanos+pdf In PDF document text
    • http://files.atlanticcoastproductions.com/uploads/1/3/1/8/131856331/rinudivaru.pdfIn PDF document text
    • http://sakule.shadowsofutopia.com/uploads/1/3/1/0/131070374/4399669.pdfIn PDF document text
    • http://files.civility-project.com/uploads/1/3/0/8/130873921/f701a7.pdfIn PDF document text
    • http://files.firebaughffa.com/uploads/1/3/1/4/131406885/vugasipetidatebup.pdfIn PDF document text
    • http://files.mythodicals.com/uploads/1/3/0/8/130814200/naxomuketolakoboru.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/1/0431/3884/2779/files/kowivuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0874/3834/files/48001715147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9536/7585/files/74191879438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2135/3639/files/metaphysical_bible_dictionary_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9716/0866/files/90779279958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/2001_mitsubishi_montero_sport_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2675/7270/files/soft_skills_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/4313/2316/files/barcos_que_vuelan_imprimir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3069/1496/files/zobiraxotaguza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7720/6167/files/reduction_formula_integration_by_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/bizemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0381/0716/files/fundamentals_of_communication_systems_global.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C30 5320 bytes
SHA-256: d9e16ddb02343e45c652a3143db084b14feab3ddd5e5dafe230ad885cb235b55
font_01_sfnt_off00005e52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E52 10716 bytes
SHA-256: a63a1a4de28f267d6684b26e21e79be5e086f0c8f48370b28c029f522c10ef78

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