Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce34c3dfe2f414ad…

MALICIOUS

PDF

36.6 KB Created: 2020-08-05 07:28:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8d4dacada6fafe6e817301a7fa66093 SHA-1: 6ba2f0ffd73765521fd3d52010e2b89aef4df3ab SHA-256: ce34c3dfe2f414ad8ba3b1020cf4d0fbce371510ecd6be9b2a2dae563d2d11ce
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure at `https://ttraff.ru/pify?keyword=manual+anestesia+local+pdf`. The document body, though partially corrupted, contains text suggesting it is a PDF about local anesthesia, likely a lure to encourage clicks on the malicious link. The ML classifier strongly supports the malicious verdict.

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=manual+anestesia+local+pdf In PDF document text
    • http://files.acweinschenk.net/uploads/1/3/0/7/130775108/zurelaxakikakuk.pdfIn PDF document text
    • http://files.endosurgicenter.com/uploads/1/3/2/6/132695360/3899837.pdfIn PDF document text
    • http://files.imadsz.org/uploads/1/3/2/7/132740462/8b79d55.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/1/0433/0687/7080/files/35679391278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1898/5370/files/62656824097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6177/1430/files/adjustment_computations_spatial_data_analysis_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8993/5002/files/juzufajafebofox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7503/4524/files/dosopekiwuvuzizijol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25346701784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6965/1606/files/85703706857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4356/0346/files/gikujomaxoxireru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0935/9520/files/world._execute_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0885/1098/files/13608533264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0852/3416/files/pakajapox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1732/3175/files/winibitof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5468/5599/files/aashto_lrfd_bridge_design_specifications_7th_edition_2020.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 3

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_off000050a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50A5 5056 bytes
SHA-256: e725f3b29423abc25cd698639a96b14e47b48ecc40bac829e73d0a3950e7e746
font_01_sfnt_off000061fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61FD 10020 bytes
SHA-256: f7d3da3f116ded289ae53d168303fccc0f7253e685a766d87974818985b4c858

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