Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ec68622da48ebf8…

MALICIOUS

PDF

42.6 KB Created: 2020-08-06 08:01:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 779bbbdb94bd4d9f0768758f390ded78 SHA-1: 93c22fd19132ff6db79a92e1b0b6023d15e5e6d7 SHA-256: 7ec68622da48ebf8b1d977ba494a4ee40d08b88768e9763b3a5c25ced031ffa6
194 Risk Score

Malware Insights

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

This PDF file contains numerous links designed to create an SEO link farm, with a primary redirector pointing to a malicious URL. The document body and embedded links suggest a lure to download further content, likely malicious. The ML classifier strongly indicated maliciousness, and the PDF structure facilitates redirection to the identified malicious domain.

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=arrest+search+and+investigation+in+north+carolina+pdf In PDF document text
    • http://files.bellesandbroomsticks.com/uploads/1/3/0/7/130739232/walalaseboretu-guxebizizubopuv.pdfIn PDF document text
    • http://files.mrsquam.com/uploads/1/3/0/7/130776609/5586067.pdfIn PDF document text
    • http://files.rememberingresistance.com/uploads/1/3/1/0/131070518/2184277.pdfIn PDF document text
    • http://files.ninjamagik.com/uploads/1/3/0/8/130874629/jatupisejumelovavog.pdfIn PDF document text
    • http://files.bayouthrows.com/uploads/1/3/0/7/130740429/dozafogivefu.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/1/0434/7474/7558/files/76292869805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/73801622313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/que_es_el_aprendizaje_activo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8374/2884/files/33606919583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/el_cuervo_allan_poe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2520/files/vagozojezawarukozisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1614/2497/files/23003956750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7772/9432/files/17903990057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8344/0030/files/autodesk_sketchbook_pro_user_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4162/7029/files/56221053093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1048/2588/files/xitiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2515/4716/files/88805174334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1370/9725/files/fodorexido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zawitowawipujeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5033/5384/files/daruruxinemilunixut.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000659a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x659A 5464 bytes
SHA-256: 3aecf7392e241aceefc29347938ab0eb96c327932b5200355dc68950a271d57e
font_01_sfnt_off00007837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7837 10660 bytes
SHA-256: 68488ef597bb3606653550ecabbb3a62307fbe79682f187c27bcdc2845f66d2b