Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5097e10c769a526…

MALICIOUS

PDF

43.8 KB Created: 2020-08-14 12:32:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9c7e37e510193cba828276312755c84c SHA-1: e4475184d653acc99fbe221ecc94df35db22f9d2 SHA-256: f5097e10c769a526a610f95b22c7236eca39ec9202a2886c404953c6351b0d32
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=autodesk+sketchbook+pro+mod+boss+apk'. This indicates the document is designed to redirect users to external content, likely for malicious purposes such as software piracy or malware distribution. The document body, though heavily obfuscated, also contains this URL, reinforcing the lure. The presence of a large number of embedded links to PDF files on Shopify, while some are benign, suggests a link farm tactic to improve search engine ranking for malicious content.

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=autodesk+sketchbook+pro+mod+boss+apk In PDF document text
    • http://zavifitab.classicroadart.com/uploads/1/3/1/4/131453215/8745149.pdfIn PDF document text
    • http://komebosov.wellnesslifestylelounge.com/uploads/1/3/2/3/132303195/xiduvaf.pdfIn PDF document text
    • http://files.misstharrisclass.com/uploads/1/3/0/7/130776409/0a27e443dae.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/1/0433/0173/2520/files/a_buddhist_bible.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/difference_between_centripetal_and_centrifugal_force.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6349/1222/files/62015575511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1424/8857/files/the_cask_of_amontillado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5052/3031/files/37452512934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/105818883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5349/5958/files/aerodynamics_of_the_airplane_schlichting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1848/5923/files/xumev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5702/7992/files/essentials_of_understanding_psychology_12th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1772/2280/files/1-_99_cooking_guide_osrs.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_off00006a88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A88 5476 bytes
SHA-256: 1f01740ef09f61d1767c80016fed81a9ce82c6aea36ffb2268080d48007be8b4
font_01_sfnt_off00007cf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF5 10912 bytes
SHA-256: 4b5c0db950eefbaffeb267a5560fd9a7670c93672e5d1abaaae7692819a13cb9

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