Malicious PDF — malware analysis report

Static analysis result for SHA-256 43c8064d4a223dac…

MALICIOUS

PDF

38.5 KB Created: 2020-08-17 09:31:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89a357222771140af05b31ecc477efe1 SHA-1: 10b5f50e859f3798e408f321140c6717c7eab681 SHA-256: 43c8064d4a223dac00bb365a0f56f4dba2c40f4aed1fbe4be38676e0bc64ef27
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM suggests a large number of outbound links, many of which are to Shopify domains hosting PDF files. The primary malicious URL identified is https://ttraff.ru/pify?keyword=uap+ac+mesh+pro+datasheet, which is likely used to redirect users to further malicious content. The document body contains garbled text but includes the target URL and a benign-looking PDF filename, suggesting a lure.

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=uap+ac+mesh+pro+datasheet In PDF document text
    • http://files.cdgpc.com/uploads/1/3/0/8/130814644/vivosobulotu-penujiza.pdfIn PDF document text
    • http://dawozure.thecostaricakid.com/uploads/1/3/1/0/131070089/wasudapedulojakumiv.pdfIn PDF document text
    • http://wifagob.en.msp-lawoffice.com/uploads/1/3/1/4/131452825/c7f8072c3.pdfIn PDF document text
    • http://files.rakshitestates.com/uploads/1/3/1/3/131380171/2637696.pdfIn PDF document text
    • http://files.fineartbyrachel.com/uploads/1/3/0/7/130775959/vumadolapabi.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/1/0437/6172/9685/files/canada_food_guide_daily_protein.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/sys._argv_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2096/6293/files/25058650225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3082/files/kufosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/burket_s_oral_medicine_10th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7628/0729/files/piweluxobaxaluzelipevebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7714/8571/files/selirasibano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fadanamimurusekebunom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5196/4830/files/29245016014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0488/6166/files/96096867928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0262/6202/files/electrical_engineering_mcqs_by_m_handa_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9679/1456/files/28397604485.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_off000057d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57D0 5272 bytes
SHA-256: 9b0c981f7c567b85f30d7ee1ad0417287fe13155ec8cdb0505dc57a842eb849b
font_01_sfnt_off00006996.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6996 10488 bytes
SHA-256: 6d94845828e451f421c1bb751603730a6e682704f1d37a925ab69628bfeb8c3f

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