Malicious PDF — malware analysis report

Static analysis result for SHA-256 61f29c6215275a43…

MALICIOUS

PDF

33.0 KB Created: 2020-08-11 01:17:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f569cb9227e2cac7aeb8245c2bf0426d SHA-1: f1272214bf46d2d1fc26420f386863c5f5c66e30 SHA-256: 61f29c6215275a43de0de226d318cb4745f093bfd3e73cc83d6626ea1fd62a53
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a free download for English learning materials. The document also hosts a large number of links to other PDFs, likely for SEO manipulation or to distribute further malicious content. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=learn+english+through+bengali+pdf+free+download In PDF document text
    • http://files.birchfieldpractice.co.uk/uploads/1/3/1/4/131455463/jojulixerigiwag.pdfIn PDF document text
    • http://wuwes.annikgaudet.com/uploads/1/3/1/4/131483254/3905636.pdfIn PDF document text
    • http://fepaki.alimichelleinteriors.com/uploads/1/3/0/7/130776167/b871c660f2b7c.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/1/0430/5531/7149/files/51105962488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3827/6760/files/xabiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6916/8021/files/jarixata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/28641944989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4020/9056/files/xubarakuworolujizomulebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/66571826194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9141/7505/files/muxewizerisitonatogev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/wenomafetajipuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/tupatani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/4369726130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0489/8978/files/ccdc_2_stipulated_price_contract.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 5

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_off00004464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4464 5476 bytes
SHA-256: c550479d292e6e3d16a18f14e69560562a09ec770ccdb1176bd7e42683b48204
font_01_sfnt_off0000570a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x570A 9304 bytes
SHA-256: 0794e5afc33552aebe9f8387b842d83b24f97377f3c3aefce6368002fa92a9e6

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