Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8f919229e53e549…

MALICIOUS

PDF

38.6 KB Created: 2020-08-10 11:28:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 67de8141c2a8ce9a0088274d7e7f2dc3 SHA-1: f93ea27837d4fb74c542f8370adb5e10a609b744 SHA-256: a8f919229e53e549dca408c7fcd682e01209e8701eaa700b143a108e49e61955
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.com/pify?keyword=billennium+jg+ballard+pdf'. The document body is heavily obfuscated and appears to be largely junk data, but the presence of numerous links suggests a link farm or redirection attack. 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.com/pify?keyword=billennium+jg+ballard+pdf In PDF document text
    • http://kifozij.wellbalancedfolsom.com/uploads/1/3/1/4/131452903/mebumawo.pdfIn PDF document text
    • http://files.trueblueyoga.com.au/uploads/1/3/1/8/131857049/6805340.pdfIn PDF document text
    • http://rasaz.cheerequity.org/uploads/1/3/1/3/131384401/siron.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/1/0431/7655/8746/files/ludazuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/the_un_security_council_in_the_21st_century.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2327/0042/files/buvanufofinagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/14192803693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/76738017097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9363/8816/files/35703264203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9993/1295/files/bunavumenuzabimerakemawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5598/0445/files/51554343969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0002/0635/files/mawokiboves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/fodekatotutide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8896/0924/files/academic_year_planner_2020_20.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7537/1162/files/futevasuxigezalulare.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 4

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_off00005ba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA6 5448 bytes
SHA-256: eb48c9b522830027dc0a0e7542086139678fbe0c35631222b3f5ba6fff2fcb67
font_01_sfnt_off00006e1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1C 9320 bytes
SHA-256: 9bc2b4c1300deec91ac58723567482e9282fe9ea7e501695bb57aef097497f52

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