Malicious PDF — malware analysis report

Static analysis result for SHA-256 b14349c104be04bb…

MALICIOUS

PDF

41.6 KB Created: 2020-08-09 14:08:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cc1929fe60bbf51842e799c30d54ac30 SHA-1: e8c01a461cfb84fd34a86ddebac3a6a2d424ff30 SHA-256: b14349c104be04bb6486893440d2347a1890c169dc40ea6797224e51987097f6
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.ru/pify?keyword=coller+deux+fichier+pdf+ensemble', is flagged as a malicious redirector. The document body, though partially corrupted, contains text related to combining PDF files and mentions 'wkhtmltopdf', suggesting a social engineering pretext. The presence of numerous other Shopify-hosted PDF links indicates a potential link farm or distribution method. The ML classifier strongly indicated maliciousness.

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=coller+deux+fichier+pdf+ensemble In PDF document text
    • http://files.thenorthwoodsnews.com/uploads/1/3/0/8/130874043/4747433.pdfIn PDF document text
    • http://files.bobodigitalmarketing.com/uploads/1/3/1/3/131380583/vemikota_manudageb.pdfIn PDF document text
    • http://files.jsnoelcollection.org/uploads/1/3/2/6/132681969/jipipigokalegox_zugakekugesako.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/1/0449/9701/7768/files/javascript_save_file_to_disk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9244/3303/files/tukeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/test_1879eb6a-339e-4d45-a409-571cd94a4742.pdf?v=1594212285In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5529/2321/files/56277260748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5461/2123/files/81868714159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4166/8775/files/ccna_routing_and_switching_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/texubibozexapokipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2068/1377/files/sejiduxima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4854/3142/files/ielts_reading_answer_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0618/8955/files/bosifofolut.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 5

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_off0000617e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617E 5300 bytes
SHA-256: 94b0c96ec2c97ffbea826631ea241031d1376e44ccebe111e20deeef67897570
font_01_sfnt_off00007356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7356 11936 bytes
SHA-256: e75007d3dac2bee4dbc0b19b4b9c6aa387dd7b6858ae0b166a9eafe0d443df96

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