Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e1935303c4465b3…

MALICIOUS

PDF

44.1 KB Created: 2020-08-22 01:26:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 851cd38e657c7902a2c80cee8f2724ce SHA-1: 434a5fbdb620c2f9c03005a079d08c71992598e1 SHA-256: 0e1935303c4465b3539de624ced855af08f287134904e8277a8317143fd69e3e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a high number of external links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that matches the redirector, suggesting an attempt to drive traffic to malicious infrastructure. 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.com/pify?keyword=caracteristicas+de+las+ciencias+formales+y+factuales In PDF document text
    • http://files.washington-scottish.com/uploads/1/3/1/4/131406739/1511360.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/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4283/8427/files/introduction_to_geographic_information_systems_9th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/ireport_tutorial_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9878/3382/files/business_continuity_management_system_iso_22301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4321/5767/files/airlift_song_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6688/4250/files/5112142524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8787/9580/files/sds_sheet_for_scrubbing_bubbles_bathroom_cleaner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1242/1789/files/kesomaradiponipirexirodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5088/4505/files/vaxusom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5710/files/44414656059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9200/9379/files/bio_fertilizer_plant_project_report.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_off00006b0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0E 5176 bytes
SHA-256: a8505f10e05b196260c47ab0b079c5e82911d8b85f90c4881c1a6b79b49ec8e3
font_01_sfnt_off00007c92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C92 11336 bytes
SHA-256: 39ab95cb9882dbeb980b4c69584109b2a73fc1bea966f3faeb50bbd6596ecbb3

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