Malicious PDF — malware analysis report

Static analysis result for SHA-256 64945e6e2086fc6f…

MALICIOUS

PDF

42.6 KB Created: 2020-08-20 18:17:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: de8f4cdce2869ed219c4a5ccef9f97f9 SHA-1: e5145322d308d2d0125f0a2b79f2332ed85e5eda SHA-256: 64945e6e2086fc6f2ee2d1759b7c29202b27875c48099f5c848f095e32b6257b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link disguised as a weather report, which redirects to a malicious SEO link farm. This suggests a phishing or scam attempt to redirect users to potentially harmful content. The ML classifier strongly indicated maliciousness, and the presence of multiple redirector links supports this assessment.

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=weather+report+new+delhi+today In PDF document text
    • http://files.alfredartwalk.org/uploads/1/3/0/9/130969873/cc1c10af448f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/82185501044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/judegesuzopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4466/6529/files/algebra_1_chapter_3_quiz_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8443/9971/files/jelunovitagojajiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9406/5557/files/acid_base_and_salt_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8068/6495/files/tipupudirofoveji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/goodreader_vs_expert_for_ipad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0671/2219/files/crimson_peak_movie_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6566/1853/files/pandoc_markdown_to_slides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8617/6665/files/coldplay_yellow_acoustic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9526/1348/files/disabajipexetapadikosuwam.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004da2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DA2 4224 bytes
SHA-256: 59e081104272c74a13bd8f3c6551b78ca73e76e9a8a0f82af875b4e7598dfccc
font_01_sfnt_off00005c76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C76 4864 bytes
SHA-256: a40de445365292fba1d651f8c6a5004502a98ba291fb199b1f77201fd8d41623
font_02_sfnt_off00006d09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D09 9992 bytes
SHA-256: 64b468764a5de30c960dbc46000c77fdd370b494c09ad9bd82d1642025bc4b62
font_03_sfnt_off00008f3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3C 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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