Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce647e7b3cb2a3fe…

MALICIOUS

PDF

48.8 KB Created: 2020-08-14 20:40:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3797fb5addc101d2532aff79541e7fc6 SHA-1: 307c64292e26459327246195f32859d36282c5a2 SHA-256: ce647e7b3cb2a3fe9272d63ef669797d05c3278f6d4b31a020b2d77b19e9f80a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, contains the URL and appears to be a lure related to 'cours denombrement terminale pdf'. The presence of numerous external PDF links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning attempt to distribute malicious 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/wb?keyword=cours%20denombrement%20terminale%20pdf In PDF document text
    • http://files.triplexfm.co.nz/uploads/1/3/1/4/131454883/b3bf577e62c.pdfIn PDF document text
    • http://files.seewhy.info/uploads/1/3/1/3/131381374/7598578.pdfIn PDF document text
    • http://budoge.hbade.com/uploads/1/3/1/3/131383775/bodimefas.pdfIn PDF document text
    • http://files.calibison.com/uploads/1/3/1/4/131437775/4718744.pdfIn PDF document text
    • http://files.kmfathletictherapy.com/uploads/1/3/1/0/131071129/jazabulu_mitadureruv_zelafuvasesod_zokaganoropebu.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/1/0429/2627/6775/files/melavaxurewij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/staphylococcus_haemolyticus_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/werakisavavufifedejalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5013/8784/files/duzeroga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/kitidenedonoxawizutel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9208/9759/files/wabikomutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1741/8405/files/archy_and_mehitabel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3075/8054/files/19140125140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5359/6324/files/kedojaxedirinatinariv.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 6

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_off00007774.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7774 5232 bytes
SHA-256: c3d3a70032f66ac1af546fee2d11c9c1846670c172a90cfae2bbb104d5f16828
font_01_sfnt_off00008918.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8918 14332 bytes
SHA-256: 2ad7061e97724ea764f1982bd4894273b62bdefbb59ffc67654c06b7b4889d97

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