Malicious PDF — malware analysis report

Static analysis result for SHA-256 84d7da9ba7b47d89…

MALICIOUS

PDF

39.7 KB Created: 2020-09-17 00:43:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cda845ac38c30816c5dca33217d78902 SHA-1: 7eefda9c4d33b381e9894324d76812bca9e46f85 SHA-256: 84d7da9ba7b47d8969c4e9371c0913530aa78c3834c2d43e0a5bd89d3f2e6de6
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to redirector infrastructure. One prominent URL, 'https://ttraff.me/wix?keyword=episode+gems+apk', is flagged as a malicious redirector, suggesting a phishing or scam attempt. The presence of a link farm and a redirector indicates an attempt to drive traffic to potentially harmful content, likely disguised as a free download. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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.me/wix?keyword=episode+gems+apk In PDF document text
    • http://files.theolneygroup.org/uploads/1/3/1/4/131407890/goroke_vumenozune_xuredotaxoj_taxopir.pdfIn PDF document text
    • http://nejodev.shadecreekwatershed.org/uploads/1/3/2/7/132740480/zagumusebawupudake.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://ab4e9453-fcd2-490a-bfdd-1d50cac65de3.filesusr.com/ugd/7198c1_cae81cb62a3c4b6b9c220ea42471a6a2.pdf?index=trueIn PDF document text
    • https://4df6307f-ec0b-4809-b712-a5a602a93662.filesusr.com/ugd/4fb05f_0e30fc4f686d43d0ac6e678d43b55da2.pdf?index=trueIn PDF document text
    • https://dcf39d67-7511-4a34-81b2-fd36b781c2da.filesusr.com/ugd/1cc777_cfc039c139654439a45887b3c7b36393.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2669/4822/files/tirakakakezizanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0724/4450/files/tumidolov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4926/3004/files/editable_calendar_template_microsoft_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8583/2096/files/vemeviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7754/1792/files/bangalakshmi_teesta_lottery_result.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7685/9557/files/breathing_exercise_during_labour.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_off00005e30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E30 5172 bytes
SHA-256: 859ff3a7f332c951edfc27711e2dbea4e0fe4dae96061b8b5818ecee388e0f9a
font_01_sfnt_off00006fba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBA 10292 bytes
SHA-256: 93f6703c00d8ca8a0e45ba7989c4b64e000b04441c0435f5b335a18e8611d9e3

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