Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f6748b5ca801031…

MALICIOUS

PDF

45.5 KB Created: 2020-08-19 21:00:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e4d8c7107ba602f4a290eb782bea8ce0 SHA-1: 42074b6cf8a9d5339c720a35bd7ec4944b8cfa2f SHA-256: 3f6748b5ca801031b2713472e0d4003422a48cf29646f2150a2a7d479991dc54
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, including a redirector to 'ttraff.cc', disguised as a guide. This suggests a phishing or scam attempt to drive traffic to malicious sites. The ML classifier strongly indicated maliciousness, and the presence of numerous links points to a link farm technique. No scripts were extracted, limiting the analysis of direct payload execution.

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=corsair+curse+runescape+guide In PDF document text
    • http://files.saidivinefoundation.org/uploads/1/3/0/8/130874633/wetuxeb.pdfIn PDF document text
    • http://files.pinnaclehcbr.com/uploads/1/3/2/7/132710763/pekor.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/1/0434/5239/9777/files/ligupaxipoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6581/8789/files/83044929963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3631/9645/files/nufowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2668/3816/files/moruzetilodomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2331/6630/files/27433229570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6713/0534/files/51530844288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4636/2533/files/retadedazetegasipiwitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4024/9755/files/92760924962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/zibogekewaxokexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8176/0935/files/16595871010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6418/1404/files/88392264266.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 6

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_off0000738b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x738B 5116 bytes
SHA-256: 1b26b1e20aadf66da9b5c420b1df754c56117692c146fd56ccb2af37ab057e43
font_01_sfnt_off000084f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F7 10732 bytes
SHA-256: f95300c07e2f80927eca0d1fa7795f2e6bc58943fffd2aaa4a854c509c9d9119

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