Malicious PDF — malware analysis report

Static analysis result for SHA-256 59b637dc30109852…

MALICIOUS

PDF

41.9 KB Created: 2020-08-23 02:41:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: de72f45b5f4cf30d65d354b0f69f7e4b SHA-1: a9bbc077be9f8e529c4b3fdb25de154fdf4b1978 SHA-256: 59b637dc30109852a5db989a2faf086a56849326146199fde4e0ec31bfd2d993
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, also contains the URL https://ttraff.ru/pify?keyword=chrome+devtools+performance+monitor, suggesting a lure related to developer tools. The presence of numerous links to Shopify-hosted PDFs indicates a potential SEO-spam or link-farming operation designed to drive traffic to malicious 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.ru/pify?keyword=chrome+devtools+performance+monitor In PDF document text
    • http://files.alimccann.net/uploads/1/3/0/7/130775921/398c4a6b4.pdfIn PDF document text
    • http://files.personalizedbyemily.com/uploads/1/3/1/6/131606046/wazubaxipogapat.pdfIn PDF document text
    • http://desupigu.retroca.com/uploads/1/3/0/7/130739892/7854976.pdfIn PDF document text
    • http://files.chuckpotterart.net/uploads/1/3/1/6/131607440/rijunutusubupun-mutijo-ziduxus-nukabuled.pdfIn PDF document text
    • http://files.eatwellwithwilson.com/uploads/1/3/2/7/132712251/5553541.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/1/0433/6254/9910/files/nominal_ordinal_interval_and_ratio_scale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7299/2918/files/fuzesaremepiteb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0307/4984/files/google_chromium_free_for_ubuntu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9857/8848/files/88911579428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/rapagojiwabusuxajexiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9873/2696/files/antimicrobial_activity_of_honey.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6331/9445/files/avancemos_2_practice_workbook_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2287/4781/files/libro_administracion_de_recursos_humanos_arias_galicia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2550/6208/files/vawus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2758/6457/files/ap_sachivalayam_notification_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 8

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_off0000660c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x660C 5360 bytes
SHA-256: 9a40b324793d2e1433aebad47d3dfdfa3f92e9cefd2357464a4c70ca2c7f976d
font_01_sfnt_off00007830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7830 10120 bytes
SHA-256: 9e877d3898c614c87d09097def1e5216d632427721711ab0e3b8c0501d8713ca

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