Malicious PDF — malware analysis report

Static analysis result for SHA-256 529ba94320056409…

MALICIOUS

PDF

36.9 KB Created: 2020-08-22 12:05:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a54107429c655c7904d667b4cad4986 SHA-1: db9f1d135ad3d12c2a8dc1d8f7e4f77dc4f8bb76 SHA-256: 529ba943200564092749b42f7db32ebd48bf8f4b7b3e0fe6d4d1546f7e01946e
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains, likely for SEO manipulation. One critical heuristic identified a direct link to a known malicious redirector, 'https://ttraff.cc/pify?keyword=bloodsport+theme+song+ringtone+free', which is presented as a lure for free ringtones. This indicates a social engineering tactic to drive traffic to malicious sites.

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=bloodsport+theme+song+ringtone+free In PDF document text
    • http://files.organicbakies.com/uploads/1/3/0/9/130969632/rusot.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/1/0439/9919/9390/files/luvujazebakogone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6300/8661/files/towarokinozelezinufuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7318/4678/files/41961024813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/dexiwimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5371/9452/files/27106798494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5802/0000/files/43687916541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7709/8902/files/free_printable_reading_comprehension_worksheets_7th_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4127/4521/files/html_prevent_autofill.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/99748845866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0531/2156/files/pekejobubavisaravedow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4853/3144/files/46644250018.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 1

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_off00005058.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5058 5292 bytes
SHA-256: 93cc585d60e419017ffb6c9be1d61a492774beb416f5bf31fac358a5e7bf8faf
font_01_sfnt_off0000623e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623E 11300 bytes
SHA-256: 836764247f5c49c7e0079872b29aa2b6524449f229f466b3382a8dac75c58a50

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