Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c62dcc81ae01447…

MALICIOUS

PDF

59.1 KB Created: 2020-07-25 18:08:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b626e25b018c5b9d5c6ab25b4fbb6a3 SHA-1: 7aaee46fc31961764c2353a78b69df3738bc5670 SHA-256: 8c62dcc81ae01447e58734c78ec53fdc2d2e814585bee0a6c6bdee20d551ce6d
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a 'PDF_MALICIOUS_REDIRECTOR_LINK' pointing to 'ttraff.com'. Another heuristic flags it as a 'PDF_SEO_LINK_FARM', indicating a large number of external links, many hosted on Shopify. The document body, though heavily corrupted, contains text related to 'Google analytics certification questions and answers 2018', suggesting a lure. The primary attack pattern involves redirecting users to potentially malicious sites through these numerous links.

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=google+analytics+certification+questions+and+answers+2018 In PDF document text
    • http://files.jalascoaching.com/uploads/1/3/0/8/130873728/bibovuvogadanibazora.pdfIn PDF document text
    • http://files.theblackribbonart.com/uploads/1/3/2/3/132303181/4f1c131.pdfIn PDF document text
    • http://files.nathaliedavilaphotography.com/uploads/1/3/0/7/130738821/zedafolorajataki.pdfIn PDF document text
    • http://files.fitnessfactory1.com/uploads/1/3/0/7/130739567/3499249.pdfIn PDF document text
    • http://files.mvsutah.com/uploads/1/3/1/3/131384679/kefem_defojowa_nevuxomod_mijudo.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/1/0437/2866/6785/files/33847064184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6568/files/lekujileze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/95233420356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57032902602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5519/4011/files/58166863811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6844/8152/files/susenonelukagusobalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8717/5588/files/16555345337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2813/5591/files/febirezupelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1468/3815/files/vowarufanasaduwijir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3876/8294/files/gizulopofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3013/4427/files/ruzid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6461/4303/files/42847179720.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_off0000a6cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6CF 5944 bytes
SHA-256: 9c7dd05b15a317d1c67e7c860ec87803eaba0559ba24e9a3ade19e428a5a6740
font_01_sfnt_off0000bb2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB2C 10440 bytes
SHA-256: 901c6f25726bc97925328647a9dfcead9ac6055ab4eb9bbe04947b7f9b91f117

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