Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b8b641a194d99ad…

MALICIOUS

PDF

45.1 KB Created: 2020-08-19 18:49:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 881cddc5c05985e32cc7a5d32025a734 SHA-1: 614ab7ed42176edc15702ea0e545bc20fe00439d SHA-256: 8b8b641a194d99adbd4810277459477bb7380a51d17dcfad1d8d84a0ddc0f142
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=call+of+duty+zombies++ios'. This URL is embedded within the document body, suggesting a lure to trick users into clicking it. The presence of numerous other links, many hosted on shopify.com, indicates a link farm strategy, likely for SEO poisoning or distributing further malicious content. No scripts were extracted from this sample.

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=call+of+duty+zombies++ios In PDF document text
    • http://durereru.infusionbaroque.com/uploads/1/3/2/8/132814930/9840819.pdfIn PDF document text
    • http://kudoj.theveggietaste.com/uploads/1/3/0/8/130874493/mikowitaza.pdfIn PDF document text
    • http://files.kindnessisfoundation.org/uploads/1/3/2/3/132303269/navegozew.pdfIn PDF document text
    • http://files.prestigeservicesleeds.co.uk/uploads/1/3/2/7/132712358/5599d60654e.pdfIn PDF document text
    • http://files.bgshuntmechanical.ca/uploads/1/3/1/3/131379054/543415.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/1/0429/8086/8255/files/66027271955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8867/4967/files/56647483787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9412/1379/files/agrostology_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3260/7894/files/91151204948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4024/1829/files/26807989439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8660/1635/files/pavidiletipoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tedogunugovosilogupex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8883/0873/files/zozupufakulokogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9028/9574/files/definition_of_developmental_psychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6767/8618/files/el_capitalismo_karl_marx.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5901/9933/files/wumugolerotezuvetudef.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_off00006cd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD1 5156 bytes
SHA-256: 532c9ed99a97ac028f39c05e4d7e8887f9b4766cf1ef77c46a8cce2275697414
font_01_sfnt_off00007e5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E5D 12656 bytes
SHA-256: 19c2b4b135385d4c92f5c24de80f19f1823b10ccd28aec31bc56d92755b23662

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