Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a242df50cc7264f…

MALICIOUS

PDF

47.2 KB Created: 2020-08-18 14:44:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e193df3b88ab6c14b0ced0f57e34cb62 SHA-1: 7ad42de09b52085940040b1e788773c66d510655 SHA-256: 7a242df50cc7264fadbd894e282b5b3797b45624211e8bebe6f3bdd06d89c8a7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple embedded links, including one that redirects to a known malicious infrastructure at 'ttraff.ru'. This URL is presented as a manual for a Bosch dishwasher, indicating a social engineering lure. The presence of numerous links to PDF files hosted on Shopify suggests a link farm or SEO manipulation tactic to obscure the malicious redirector. The ML classifier also 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=bosch+integrated+dishwasher+smv40c30gb+manual In PDF document text
    • http://files.alightintheworld.org/uploads/1/3/0/7/130776795/vumurebadone.pdfIn PDF document text
    • http://potez.garealpropertylaw.com/uploads/1/3/0/7/130739826/bumikovon.pdfIn PDF document text
    • http://files.ashfordparishnorthdevon.com/uploads/1/3/1/3/131379719/1431848.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/1/0430/8549/6482/files/32579892753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/depuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5464/2853/files/31955101622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5609/4614/files/43564823588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3332/7776/files/mozar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9510/4424/files/4liker_apk_2018_fb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3292/6616/files/animal_miike_snow_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9232/files/zogutokadigizosogilowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/17647560215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/jekederodozadek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4964/7261/files/fecha_de_caducidad_de_los_medicamentos.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E23 6088 bytes
SHA-256: afb8cc2bb3f211ed8852426b2c8b2b5744c0eb0cbcd11ade0b9f0a2d17f02c78
font_01_sfnt_off000082c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C0 14612 bytes
SHA-256: 3005b732581fc7c8707d7aa1307373f8d0106f4a1f19a04bf2b401e6445ed475

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