Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d467a28cd7b0b15…

MALICIOUS

PDF

40.8 KB Created: 2020-08-06 09:51:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a423b294b54e0a2b39ea4d52c6a7dc18 SHA-1: 32a10ace065bbd8f47356d56707d6ccb6b6901a2 SHA-256: 6d467a28cd7b0b157d0354e4bc51da289296bd2ebacf75a12ce7c5eda1a2b24c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service identified as malicious. The document body also contains the malicious URL, suggesting a lure for users to download a 'PDF minimizer'. The presence of a malicious redirector and a large number of external links indicates an attempt to drive traffic to potentially harmful content, likely for phishing or malware distribution.

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=pdf+minimizer+free+download In PDF document text
    • http://files.scrapthetrappgh.org/uploads/1/3/1/0/131070030/jakejixasededabulajo.pdfIn PDF document text
    • http://files.ignitecities.com/uploads/1/3/1/8/131856456/4e124e1f02f5016.pdfIn PDF document text
    • http://files.jciparma.com/uploads/1/3/2/6/132682833/duzararolajo.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/1/0429/9508/9559/files/jutogasudilutunukezemipos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9626/7168/files/java_foundations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7573/9553/files/yuna_crush_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2944/7335/files/panefipupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/lamopuxerageluxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4695/1319/files/computer_lab_technician_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5126/1853/files/dafilorupozax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3126/3394/files/80664950649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2707/1130/files/jetikugevekuxijoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/kiluj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9432/6949/files/91086975607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/25667876057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4023/3880/files/xapulotupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0202/6393/files/lemanonijukugateware.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 7

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_off00006298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6298 5020 bytes
SHA-256: eb9ad7df4d2841d74e21ef6fd11fc722452ba25253ae00c3ebad29f54c6b9dd1
font_01_sfnt_off000073ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73AB 10112 bytes
SHA-256: 4e9aa1cf4b21af61e53c4ed921fc72022b5e5b70a03e357d571afca1774cc711

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