Malicious PDF — malware analysis report

Static analysis result for SHA-256 49d4ba116b837be4…

MALICIOUS

PDF

42.4 KB Created: 2020-08-28 06:02:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b5460a14e8b8060ee43e240355ae587c SHA-1: fb79e836404057f0e23e13a0e15deaca2f7995bc SHA-256: 49d4ba116b837be4572b7bc0218ae2f8849d06c74c3a83801e3db111f498b59b
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which likely serves as a lure for users to download further malicious content or be phished. The document body, though heavily corrupted, contains the same URL and appears to be a deceptive lure related to a 'contrato terapeutico psicologico'. The PDF also hosts a large number of external links, many pointing to Shopify domains, suggesting a link farm for SEO poisoning or to obscure the ultimate malicious destination.

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=contrato+terapeutico+psicologico+pdf In PDF document text
    • http://files.gameaccess.net/uploads/1/3/1/6/131637108/d3084b3a90447.pdfIn PDF document text
    • http://vuwomozu.artculturevs.org/uploads/1/3/1/3/131379394/debazemololumobug.pdfIn PDF document text
    • http://pajener.thaischool.org/uploads/1/3/1/6/131636825/163995.pdfIn PDF document text
    • http://jobowudig.verplanckfire.org/uploads/1/3/1/6/131637024/rasuzagoluwoku.pdfIn PDF document text
    • http://files.christopherwongld.com/uploads/1/3/0/7/130775952/6650693.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/1/0432/8862/5316/files/dunuzezatodatodiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/86083061522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6657/2452/files/62096787169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/nevunefazomolejebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3243/7158/files/losipuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6080/3237/files/hallelujah_trumpet_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0972/7912/files/nulapofafoxiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9029/7507/files/20238432523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8189/8913/files/wobusavowib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/5050/7944/files/xasotejaparexuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1884/6112/files/40550092656.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_off00006716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6716 5228 bytes
SHA-256: 13ff4a07ff6a463368c4087a9c94a973166ace5bc92b44b61a08c8b0402cda41
font_01_sfnt_off000078e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E4 10528 bytes
SHA-256: f26ebc47a0cc499e86c3fc315ab17f3f4649ae810aec5f632763ba5a3efb3e1d

Open this report in the interactive analyzer, or submit your own file for analysis.