Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c1ce6ae53e48f0f…

MALICIOUS

PDF

49.1 KB Created: 2020-08-09 13:02:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e97d6434b4f92f26ac07f3bc18f9b60f SHA-1: 1d7daa236452abd6ebdea8a0bb13425484c42a53 SHA-256: 6c1ce6ae53e48f0fb89d5390ab768edb485480d154eecf8a3f89c95626e9365b
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'ebook reader' and a URL that mirrors the malicious redirector, suggesting a lure for users to download or view a file. The ML classifier strongly indicates maliciousness, and the presence of a malicious redirector link is a high-confidence indicator of malicious intent.

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.cc/pify?keyword=ebook+reader+f%25C3%25BCr+pdf+dateien In PDF document text
    • http://files.neuropsychologyforyou.com/uploads/1/3/1/3/131379828/9ad2b7dbd7e179c.pdfIn PDF document text
    • http://files.stjosephministry.com/uploads/1/3/0/7/130738998/c2d3d71c66a22.pdfIn PDF document text
    • http://files.minneysyachtsurplus.com/uploads/1/3/1/8/131872285/7373998.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/1/0432/1532/3291/files/define_aggregate_supply.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9051/7917/files/customary_international_law.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5975/7734/files/14598140480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7196/3296/files/76490880192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3983/4780/files/angiogenesis_in_cancer_and_other_diseases.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/wutoveteg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8374/2884/files/34354888278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0311/7719/files/dujusamopom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/7264/7331/files/google_to_word_converter_offline_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7037/4559/files/data_analysis_books.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_off00007f85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F85 5108 bytes
SHA-256: 8132230d774f77ed13c1c9ffbac61a34958afcd3126ad03fd4949eb437ab3599
font_01_sfnt_off000090bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90BF 11212 bytes
SHA-256: 185cb428a093d720430fd700b3e9f11a0ac30b2c23618dbcadcac47b5e003d5c

Open this report in the interactive analyzer, or submit your own file for analysis.