Malicious PDF — malware analysis report

Static analysis result for SHA-256 0723a974f338d1a6…

MALICIOUS

PDF

52.7 KB Created: 2020-08-05 05:51:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ad5cbde29b13b399fef7975e58ac2ce SHA-1: fd30bb9a7a365609d9d4abd00bebd71e3a7c317b SHA-256: 0723a974f338d1a62281fd8832ce6c1b9326987d02cab8310cb26194991ccfca
202 Risk Score

Malware Insights

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

This PDF contains numerous links to external PDF files, many of which are hosted on Shopify domains, suggesting a link farm or SEO poisoning tactic. A critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to funnel victims to malicious content. The ML classifier strongly supports the malicious verdict, and the presence of embedded links indicates an attempt to trick users into downloading further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=annexure+e1+for+hssc+pdf In PDF document text
    • http://files.omnigrpinc.com/uploads/1/3/1/8/131871739/4031d05.pdfIn PDF document text
    • http://files.gaindetalks.com/uploads/1/3/1/4/131437444/kexoloxunaxas-wofizeve-kutari.pdfIn PDF document text
    • http://files.ragandboneprojects.org/uploads/1/3/1/4/131437147/5653229.pdfIn PDF document text
    • http://files.jmsupplyga.com/uploads/1/3/1/6/131637853/3808439.pdfIn PDF document text
    • http://files.ambassadorsofnature.com/uploads/1/3/2/3/132302718/5731939.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9731/7783/files/zonalokubepabujevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9048/5150/files/revit_architecture_sample_projects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0213/3656/files/wawagupupebutanebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2761/1300/files/48200568997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5117/1478/files/3846222055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0645/2131/files/web_2_converter_chrome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/brazil_date_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9180/3801/files/petufunigukifovomunabiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7923/6773/files/27771919315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9799/5941/files/turaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0831/9903/files/10_pound_mud_snapper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2007/2613/files/vafozupikizobir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9585/8083/files/albert_schweitzer_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/28206004956.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000615a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615A 5108 bytes
SHA-256: 1c776a83e8cf3511103db06aae5935366dede6bec9e2ef0cf4c94dc04fb6f373
font_01_sfnt_off000072c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C7 3720 bytes
SHA-256: b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b
font_02_sfnt_off00007e2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E2A 12464 bytes
SHA-256: 6a73c83e8acf21d1cde46da2c4c7cfdf1c5289039d4686b793116495c27b31ea
font_03_sfnt_off0000a6bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6BB 9412 bytes
SHA-256: ebec03bd87911af594788a89cd6906097929a956808f6d2e968359e263ed975a

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