Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5dd614189825efe…

MALICIOUS

PDF

34.5 KB Created: 2020-08-19 14:44:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff133530cd53c00cfb13f1886c3e7310 SHA-1: a0ba7ba99e0c24e5469539c547423187ead72313 SHA-256: c5dd614189825efeaf79750bc1cf25e892177c00fa81fb85a8b6cdcbca00db63
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link and a link farm. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the primary goal is to trick the user into clicking the link, leading them to malicious content.

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.ru/pify?keyword=chale+aana+song++mp4+pagalworld In PDF document text
    • http://files.socalpengathering.com/uploads/1/3/2/7/132710491/sosusugebizobero.pdfIn PDF document text
    • http://neremi.mylappetbed.pet/uploads/1/3/1/1/131164537/8a716774cc0f3a.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/1/0431/3012/6496/files/simifoxuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1634/8057/files/kisexogomoluj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6262/4405/files/cell_cycle_mitosis_and_meiosis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4174/1205/files/rugadipujobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0456/7450/files/90417392092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2198/4166/files/dipapivawejop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4555/2290/files/rumudamiwolosubajoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9847/0552/files/1129921169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lebalod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8508/6364/files/atypical_child_development_in_context.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8354/6267/files/kepagopobelajasef.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 4

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_off0000494e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x494E 5460 bytes
SHA-256: 2dfb1482ff19a5fbd9e6d2cb122541ec8984daf564c8a81d903acbd8e417113e
font_01_sfnt_off00005bc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC3 9756 bytes
SHA-256: 836d5d21ed9f323b579238c552088dd1af5240c7efc26d2ddf64e64e35d99275

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