Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c7dc96d1fc3e916…

MALICIOUS

PDF

43.1 KB Created: 2020-08-07 04:02:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ace1c38eb0af68347b4c89c11cb692f3 SHA-1: a0d45d79ac7881926d45ec5219914f017896e40f SHA-256: 0c7dc96d1fc3e9167490c4e3702853c1b3ff8f08173589a49b14be06c0b817ca
194 Risk Score

Malware Insights

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

The PDF contains a lure for a "data analytics python tutorial pdf" which redirects to a malicious URL. It also hosts a large number of links to other PDFs, likely for SEO manipulation or to spread malicious content. The ML classifier strongly indicated maliciousness, and the embedded URLs point to known malicious redirector infrastructure.

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.com/pify?keyword=data+analytics+python+tutorial+pdf In PDF document text
    • http://files.coopercatgallery.com/uploads/1/3/0/7/130739962/4754771.pdfIn PDF document text
    • http://files.lynchburgkarate.com/uploads/1/3/0/7/130738639/modimizovevox.pdfIn PDF document text
    • http://files.elderjacknielsen.com/uploads/1/3/0/7/130775098/wipiwiruk_fawoma_sonukofofal.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/1/0434/4361/7959/files/70236266777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0628/0355/files/72172118301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9807/8372/files/kifekewodixizeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7777/9100/files/suxidomab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0806/3649/files/no_in_other_languages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8497/1173/files/6242244427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0581/2629/files/najovoxepipunufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0729/6163/files/setepirulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0081/5006/files/present_tense_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3260/8921/files/83461710551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3063/3881/files/miravete_materiales_compuestos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dutevitijenunolekegek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6240/2967/files/sogofumoboki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5312/9640/files/libagurefoz.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
🗂 Part of campaign: mountainairdance.com 7 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006923.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6923 5344 bytes
SHA-256: 6eec94aec9b99697e368b23f31641e306731bc5f61d892d64e33aec4711e6b6a
font_01_sfnt_off00007b58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B58 10364 bytes
SHA-256: 68ed1890fedc7db9fa0d02f0d545503f6759e858af675d9e29404db7ff69f326