Malicious PDF — malware analysis report

Static analysis result for SHA-256 8601355f6e99ba23…

MALICIOUS

PDF

60.0 KB Created: 2020-08-12 01:57:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 066ebedc564d62c8836375a1cbb1c254 SHA-1: 24b727f5332e5aefa7b80747b70da95b9e8240e6 SHA-256: 8601355f6e99ba2336b156b5d462f8ec1fce6288d25817aacb99db8a7db22772
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a known malicious URL, ttraff.ru, which is indicative of a phishing or scam attempt. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the malicious URL, suggesting an attempt to disguise the true destination.

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=adverbial+clause+of+result+pdf In PDF document text
    • http://files.sanantoniodivers.com/uploads/1/3/0/7/130776592/wexigusenara-zufedet.pdfIn PDF document text
    • http://files.svitakwood.com/uploads/1/3/1/4/131407890/eecba7.pdfIn PDF document text
    • http://files.nicolesmithenergy.com/uploads/1/3/0/7/130739239/melurumonoramawusefa.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/1/0429/2050/9596/files/7354442832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8135/1839/files/hybrid_renewable_energy_systems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/digital_multimeter_dt9205a_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/89537596973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dadimutixiwukigojubiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/pugidedupifenofudepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5013/7760/files/financial_accounting_weil_14th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7691/0242/files/13914348185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6302/4542/files/csv_to_json_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9462/files/gaxutevuva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1175/8504/files/56016782681.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a398.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA398 2828 bytes
SHA-256: b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a
font_01_sfnt_off0000ad93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD93 5340 bytes
SHA-256: fcb8ca2dda4dad95f6cf02283aebea5aa67fa1327a097bd85a248e2452e456f2
font_02_sfnt_off0000bfc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFC7 10464 bytes
SHA-256: 6feed64c398862fed4bcbc904782918faf19a8c11af2f3378b388265805b8bbf

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