Malicious PDF — malware analysis report

Static analysis result for SHA-256 419617a85010197d…

MALICIOUS

PDF

44.9 KB Created: 2020-08-21 01:25:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36b5ad7a5db439bcde40cc9f239eb64c SHA-1: 37207171b923c708a15027d7522450b767dc8654 SHA-256: 419617a85010197d865b93a6256210643bb68756a2b7f79dcff7d3e0be862670
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Greater london bus map pdf' and the malicious URL, suggesting a lure to trick users into visiting potentially harmful sites. 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=greater+london+bus+map+pdf In PDF document text
    • http://files.americanautoaircarsales.com/uploads/1/3/1/3/131383892/zevoli-gukekomediliro.pdfIn PDF document text
    • http://files.blackriverquarries.com/uploads/1/3/1/4/131437017/vireleve.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/1/0435/0361/6165/files/b._tech_syllabus_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5725/6350/files/50181836207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7400/0798/files/printable_user_guide_for_iphone_6s.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/wijavukabopirige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9443/4202/files/jufefazimejifarux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9902/1717/files/44195028140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6099/2927/files/94041651815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7985/0398/files/careless_whisper_saxophone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3024/8600/files/temperament_traits.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/paulo_coelho_adultery_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7230/4790/files/emotional_intelligence_test_questionnaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9299/2410/files/95583542651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6986/6141/files/40258602871.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
🗂 Part of campaign: americanautoaircarsales.com 4 samples

Related samples 6

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_off00007245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7245 5356 bytes
SHA-256: e1be221a22bc89986bc5363a5961ece633b4f4da6ddd05690a43372f4fd437d9
font_01_sfnt_off00008461.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8461 9956 bytes
SHA-256: 905031a65847bda924500dda3a57995f92f4092db2b17e15a23a28c42545b8ee

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