Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebe17970204fbfff…

MALICIOUS

PDF

45.3 KB Created: 2020-08-18 15:08:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 389c5f37474377013543f7c380f94509 SHA-1: 95b7d3970ce261a4c16cb16c898916456fdd13a3 SHA-256: ebe17970204fbfff2c4d8e9be19327c497dc5f28627150c8c9068362c0dda546
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body contains a URL that appears to be part of a link farm, likely for SEO manipulation or to host further 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=aritmetik+dizi+pdf+test In PDF document text
    • http://timovidix.secfmc.org/uploads/1/3/1/3/131380600/fefujixivusumigaweku.pdfIn PDF document text
    • http://files.centre-urban.com/uploads/1/3/0/8/130813888/gidozug.pdfIn PDF document text
    • http://files.heartitudeartsoul.com/uploads/1/3/0/8/130813992/sudaf.pdfIn PDF document text
    • http://baritu.groundhogproof.com/uploads/1/3/0/7/130738799/vokivuvilubigimig.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/1/0433/0687/7080/files/22411539251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9690/7678/files/biochemistry_lipids_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7831/files/14101327697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/kurojaremajiwuvuvimojozod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4890/2554/files/63497820269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1163/6381/files/ffxiv_fishing_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3993/9994/files/4951178894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4423/9517/files/sazatekawokixen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7241/4106/files/git_commit_author.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0531/2156/files/accountancy_notes_class_11_cbse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/rujanuvilazedivexanoga.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_off000066f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F8 5048 bytes
SHA-256: ff376ded5903ba12934159bb9699fe01edfdbf92b1c24a4f5f158876203d3666
font_01_sfnt_off00007821.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7821 15792 bytes
SHA-256: 77f5fe32b421e31a1bbf729dd1c50f45132e7a8fe15bbb959a430ba09c0c7dc6

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