Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad9b71c0d8469f6d…

MALICIOUS

PDF

35.7 KB Created: 2020-07-29 22:12:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9256e3d76b3dbb9b264d01bbd42a9404 SHA-1: eae67e4a5e9f6fae344ec8ad70a35b9b118eedb8 SHA-256: ad9b71c0d8469f6d171299df73b4e63727656def5d481f2a00f7e72d7b894e4d
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which likely serves as the initial stage for delivering further malicious content. The document body is heavily obfuscated, preventing a clear understanding of its purported content, but the presence of the malicious redirector and the link farm strongly suggests a malicious intent, likely phishing or malware distribution.

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=bsava+manual+of+wildlife+casualties+pdf In PDF document text
    • http://files.langfordherefords.com/uploads/1/3/0/7/130740323/4f3c33bc9be5e7.pdfIn PDF document text
    • http://files.kilgorecustomtattoo.com/uploads/1/3/1/3/131398143/sonavugavi-wozovomumofafi-merurekezewimo-nezakar.pdfIn PDF document text
    • http://files.dc3cares.org/uploads/1/3/1/3/131383747/toneku_miwuzolu.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/1/0436/0355/8564/files/napawopikixoxezikixom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bifezunelavezide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9595/6386/files/gimuguxonipifuxudak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8236/6629/files/fopepuwatiguluj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3735/0309/files/nivotevulexozovonenanejor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3343/5029/files/99621726977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0348/5092/files/zonewulejiperi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5757/8137/files/jirata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2505/5389/files/teribesulavax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8995/8814/files/rujaguxafamiwoganak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3877/7249/files/49878860055.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
🗂 Part of campaign: dc3cares.org 3 samples

Related samples 4

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_off000052b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52B9 5288 bytes
SHA-256: 76236c15e7ee43f2b3d69fe18ae32ca3b7fdcece88b5eb3c354df7e61ebcee13
font_01_sfnt_off000064b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B6 8440 bytes
SHA-256: 15ee04e3e175a8c007b00d75d487e794ab9dbdd2aa9a619ff0e36130ea6b5744

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