Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d23d9d44e3cbe84…

MALICIOUS

PDF

68.7 KB Created: 2020-08-17 07:48:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f5b2a23716a9f7182cb4c8bca1a8df2 SHA-1: ae0a6a03cce2e3448c8d6f180d2e12bfa97125e2 SHA-256: 6d23d9d44e3cbe84f8c09b382c950a89565ae01df4f831a5fffffa5af377d65e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, includes a URL that is also flagged as a malicious redirector. This suggests a phishing or scam attempt designed to lead users to potentially harmful 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.cc/pify?keyword=neumonia+pediatria+pdf+colombia In PDF document text
    • http://files.awakeningthedivinewithin.com/uploads/1/3/1/6/131606025/68c0d68e68.pdfIn PDF document text
    • http://fedib.thepuzzleleaguedance.com/uploads/1/3/2/6/132681393/radugoso_votepuje_dibojatoxobumoj.pdfIn PDF document text
    • http://files.kategrindon.com/uploads/1/3/1/4/131411596/minoginewunaxu-mekatufeb-vozusetoraterun.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/1/0433/7405/1491/files/58316889701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1482/7677/files/zixegirokaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9103/2216/files/6039287698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7250/files/wijogom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8111/3506/files/adobe_creative_cloud_keygen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7044/0095/files/xobaravemovuziranapur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5915/8946/files/xopavumawezufape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0571/4338/files/264970587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5477/5970/files/54873928677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3459/7784/files/data_structures_and_algorithm_analysis_in_c_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2737/3990/files/vujusuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/74407680913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5742/9145/files/2203650906.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 4

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_off0000c4f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4F1 5232 bytes
SHA-256: 748b813e3908d5ae63ac28c50ee9e2720bcf37887382a20d0fd10a957f5fb9a3
font_01_sfnt_off0000d6a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6A2 15296 bytes
SHA-256: 0365a92078a9ad7c65815cf08f07be6e65c9b0479185231dc172a08cfe179367

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