Malicious PDF — malware analysis report

Static analysis result for SHA-256 a412fcb9f571be4f…

MALICIOUS

PDF

46.5 KB Created: 2020-08-08 06:48:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b6c01d2ac82d9f03b61f730b7a26ec0 SHA-1: 0c9d568ecc6223c3b0cc5d21bfc7c10698874077 SHA-256: a412fcb9f571be4f4be724da7a6ee78569b3753752dd6b248f0c9054b6a05ce8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, with one specifically pointing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=nominal+group+technique+pdf'. This suggests the document is designed to lead users to malicious content. The presence of many other PDF links, some hosted on Shopify, indicates a potential link farm or SEO poisoning tactic to distribute the malicious redirector. No scripts were extracted, limiting further analysis of the payload.

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=nominal+group+technique+pdf In PDF document text
    • http://files.northstarchapter.org/uploads/1/3/1/3/131379409/3117863.pdfIn PDF document text
    • http://files.eaglebrooks.com/uploads/1/3/1/8/131857914/mupogudukikoz_surogosilux.pdfIn PDF document text
    • http://files.thesewingcottageus.com/uploads/1/3/1/4/131409009/9412649.pdfIn PDF document text
    • http://files.brockvilleconventioncentre.com/uploads/1/3/0/9/130969489/b987801a233.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/1/0434/4292/9821/files/85291360044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/8662/9288/files/formato_balance_general.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1872/2207/files/wugudolimemoxika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4306/1913/files/sidafiwabosibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9472/7074/files/95658784716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9157/files/fuluseninewek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1532/9176/files/extend_photoshop_trial_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4976/0421/files/business_environment_class_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9521/8594/files/tilapia_production_in_the_philippines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0776/9750/files/4195889477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7618/9346/files/yakuza_0_real_estate_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4583/7208/files/tikalonusijixigumasew.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 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_off00007823.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7823 5484 bytes
SHA-256: 505f386d96bb0625eafb19917a5c015689a98058c06de1a9965998640a6146e0
font_01_sfnt_off00008a9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A9D 10272 bytes
SHA-256: e8c71b9fefd59e77f31197b42a762ce97f07ba87675ca18a1d38997fb9d713dd

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