Malicious PDF — malware analysis report

Static analysis result for SHA-256 b03808ed776d998c…

MALICIOUS

PDF

40.6 KB Created: 2020-08-19 12:12:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ccddd4142936b54bad2f4c50f3d8ed4 SHA-1: 423418fa3db7f658733cdea505baef136a6ed9bb SHA-256: b03808ed776d998c04b4dc916904f5f22c82a625ed62b3b2d918b96a862fb7af
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'free html responsive table templates' and the malicious URL. This suggests a lure to a site that likely hosts further malicious content or phishing attempts. The presence of a link farm heuristic further supports the malicious intent of distributing 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.cc/pify?keyword=free+html+responsive+table+templates In PDF document text
    • http://files.greater-faith.org/uploads/1/3/0/7/130738799/3a9df545145d3.pdfIn PDF document text
    • http://files.happyestsparrowblog.com/uploads/1/3/0/9/130969621/1552308.pdfIn PDF document text
    • http://files.bullbearkidsbooks.com/uploads/1/3/0/7/130776257/desub.pdfIn PDF document text
    • http://kojinor.antonianhonors.com/uploads/1/3/1/3/131383434/490941.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/1/0428/3426/4231/files/11354908166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2027/8171/files/37660850083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2696/4895/files/4348936149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/moravagine_blaise_cendrars.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4253/5574/files/kakefere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9389/4044/files/kujedapisukizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/80782971150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5862/4672/files/6435871362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7500/9696/files/emotional_intelligence_in_the_workplace.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9675/1771/files/63669449532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5671/6186/files/24934645698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2873/4367/files/82624349826.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_off00006183.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6183 5212 bytes
SHA-256: 0d8a62632d516bf303567f4b4edf9746f6b28eeede5c82729b7c4b98e6a68a30
font_01_sfnt_off00007317.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7317 10052 bytes
SHA-256: 7f899482302b8f9182a695aaff95a94de30a0d673d9076f0b77c1f15383185df

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