Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea554e6e4b3e2b33…

MALICIOUS

PDF

34.0 KB Created: 2020-08-25 05:52:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f197d9ac39c46f497992328bed6d9350 SHA-1: 7b02cbd523bbf145221b201f0e4da05f4709e133 SHA-256: ea554e6e4b3e2b33eac8ff68b295216b73527826174322c41e3206efabdb705f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains text related to 'Anushka sen dance video' and a URL, suggesting a lure to potentially malicious content. The presence of a link farm further supports a malicious intent to redirect users.

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=anushka+sen+dance+video In PDF document text
    • http://tegeze.gahanritchie.com/uploads/1/3/1/8/131871390/livemusumixor.pdfIn PDF document text
    • http://files.wisdombytheletter.com/uploads/1/3/0/8/130814337/4079693.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/1/0429/5317/9289/files/49189541893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4670/6088/files/etiology_of_pneumonia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6014/3014/files/11239285021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5452/1758/files/terminator_4_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6766/9654/files/80216362930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4535/4658/files/gajamuvisejobijurit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6916/1110/files/55758860769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6528/6549/files/moral_development_character_formation_and_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9010/8833/files/43157314627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2556/3799/files/6938695771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3750/7240/files/11612072322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7505/2454/files/79798035576.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 3

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_off000047cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47CD 5012 bytes
SHA-256: 48e801afe25ff26cef1edac8d8362b84a55714ec2b5049fdd3e33cdfddb6da2b
font_01_sfnt_off000058d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58D3 10136 bytes
SHA-256: ef2eb03f5e00e0ff5c0c96637aecb5abb9c14718d1889491e7e93d318cb4d1ba

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