Malicious PDF — malware analysis report

Static analysis result for SHA-256 db7f5150cfbbbd87…

MALICIOUS

PDF

68.8 KB Created: 2020-07-28 19:51:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 537bba805dfbe2a469ee11c339e045d6 SHA-1: f1608802677646b7b624d647744267be9f84424b SHA-256: db7f5150cfbbbd8758b330dc9f19c60bb67c76c22b76ad309e3dbd625f56b33d
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it's a malicious redirector link, pointing to 'ttraff.com'. Additionally, another critical heuristic identified a PDF link farm with 16 external links, the first of which is 'cdn.shopify.com/s/files/1/0433/1234/9334/files/pevokerenotugojebuvopid.pdf'. These findings suggest the document's primary purpose is to lure users to external, potentially malicious, sites. No scripts were extracted, limiting further analysis of specific payloads.

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=arjun+artist+all+songs In PDF document text
    • http://files.eyelightdesign.com.au/uploads/1/3/1/4/131437472/44bfe02eaa6.pdfIn PDF document text
    • http://files.ghostandribbon.com/uploads/1/3/0/7/130775870/c78a6717ae2b66.pdfIn PDF document text
    • http://files.nikkipinkwriter.com/uploads/1/3/1/4/131483254/zediva_zumifumipir_doxelanirewij_ruzuzuje.pdfIn PDF document text
    • http://files.livepurebodycare.com/uploads/1/3/2/6/132681438/gusitefa.pdfIn PDF document text
    • http://files.ioniacooking.org/uploads/1/3/1/8/131856446/netatetirelon.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/1/0433/1234/9334/files/pevokerenotugojebuvopid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7861/5189/files/99500954948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/zopalusif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2484/9815/files/94750387064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vidabuvuwegorowomilamum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7832/8221/files/bobutijiweruw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0643/5232/files/43365628675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/14829427145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kixekitigatozodevejale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6953/6411/files/kuradudogulaboduwegimewej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zexula.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_off0000c53a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC53A 4684 bytes
SHA-256: b609eca04a0c565658d092ff8a04663fda066cb0d007d7ee729711e3ec343796
font_01_sfnt_off0000d524.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD524 15176 bytes
SHA-256: d08d33a72bc9b4aceb85ff0394fc33dc64271682dc0a047d90334f3084080081

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