Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c1252ad4af1a0c1…

MALICIOUS

PDF

44.5 KB Created: 2020-08-06 09:17:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3e983e983fbcfbe7fcab820d5fad386 SHA-1: 76985915f3c40deee60a83e16c6ede1c0af0ee4e SHA-256: 7c1252ad4af1a0c1c8c8606749f9e885d5b0c796a30a4c2082d28da590e59c7e
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, masquerading as a Qigong breathing exercises PDF. The primary link, https://ttraff.cc/pify?keyword=qigong+breathing+exercises+pdf, is identified as a malicious redirector, indicating a phishing or scam attempt. The ML classifier strongly supports the malicious nature of this PDF.

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=qigong+breathing+exercises+pdf In PDF document text
    • http://files.elyriadev-center.com/uploads/1/3/2/3/132303382/5a0aa.pdfIn PDF document text
    • http://files.astrologermaggie.com/uploads/1/3/1/3/131381078/vusen_sewogajax.pdfIn PDF document text
    • http://files.eclecticdragonflygifts.com/uploads/1/3/0/7/130739928/silal-vorivutiw-mawodipa.pdfIn PDF document text
    • http://files.brunosdetailing.com/uploads/1/3/1/0/131070846/569da92fc1016d.pdfIn PDF document text
    • http://files.waterdowncivics.org/uploads/1/3/1/4/131437308/sunokegidakakuk_dokaratonogaku_satujet_nosoxutejubevi.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/1/0435/3759/6575/files/gta_5_dns_code_xbox_360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2909/3784/files/lobibomisadol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0687/0183/files/vodavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9701/2890/files/severo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7156/1116/files/46452142111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6669/3534/files/administracion_de_recursos_humanos_idalberto_chiavenato_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31968244380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nefodegaxinavikiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/59771881901.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBA 5652 bytes
SHA-256: e90e291dd29bf36ab05c37fa495cf71fca97f502edcc7c7e6428a14bdaad1ee7
font_01_sfnt_off000082f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82F6 10024 bytes
SHA-256: 6580cd205ee6c621376231419e22d56bd199c927ce817dd49649f7bbf3bf0d87