Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b00d46ac867c2ed…

MALICIOUS

PDF

39.7 KB Created: 2020-08-02 16:03:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06348c21b81f59af1df97810363bbf58 SHA-1: a49c4781cda13e788ebc4a4dfe581dfb900cde4b SHA-256: 0b00d46ac867c2ede635cb12281c849e72da21fc083e4a19e9c1adf555f4518f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary redirector URL is associated with known malicious infrastructure, suggesting a phishing or scam attempt. The ML classifier also strongly indicated maliciousness.

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=bulgarian+alphabet+online In PDF document text
    • http://files.curbysickmonedu.com/uploads/1/3/1/3/131383456/ripinawexeve.pdfIn PDF document text
    • http://files.windhorseadvancedhealing.com/uploads/1/3/1/4/131437657/1108938.pdfIn PDF document text
    • http://files.westdesmoineslawncare.com/uploads/1/3/1/4/131438002/30e30e5.pdfIn PDF document text
    • http://files.mariedyerstudios.com/uploads/1/3/1/3/131380158/zeturojirovixuze.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/1/0428/9835/8432/files/58933331969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7248/6564/files/nemoruxojupalarobenidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9659/5870/files/53892609973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4828/8934/files/2727292125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1625/5650/files/37634663897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0115/1651/files/1759876619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9910/3136/files/dufavoxedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/10439773708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rerotapok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4166/0826/files/15307710568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3901/files/ie10-_viewport-_bug-_workaround._js.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_off00005cfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFA 5092 bytes
SHA-256: 51e01388f4e88058dc538305de523f649841cb0d416e76cccea3cad5266d6e87
font_01_sfnt_off00006e45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E45 10520 bytes
SHA-256: 041b4b664b273abd4378b27144c865a907b936bef445e4c4f749bed08ab15bc3

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