Malicious PDF — malware analysis report

Static analysis result for SHA-256 03a99a6c62424d72…

MALICIOUS

PDF

41.2 KB Created: 2020-08-17 00:57:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f11c96433d497d4471f0a99708995cc SHA-1: f61ad3178228a8737dcd15f5f603ae1a31322f8e SHA-256: 03a99a6c62424d7234d0c2b81969f0e878583c23e0a61c20206dd8908a6eeee1
202 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic identifying a redirector link to 'https://ttraff.ru/pify?keyword=blank+nid+card+psd+file'. This, combined with the 'SEO_LINK_FARM' heuristic and the presence of a 'download button' lure in the document body, strongly suggests a phishing or malware distribution attempt. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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.ru/pify?keyword=blank+nid+card+psd+file In PDF document text
    • http://files.tallywood.com/uploads/1/3/0/8/130874160/rerujifoxomalu-toxabefo-vatuzegawevuxi-venaputom.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/1/0432/3062/5950/files/75563526259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2198/4166/files/fobenewasakufafelukux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9711/2219/files/70476609799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/gukukotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4102/9276/files/66963328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3100/1250/files/katyusha_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1483/1780/files/canteen_management_system_project_documentation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2870/7488/files/ejercicios_de_caida_libre_y_lanzamiento_vertical_resueltos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1907/4712/files/hashmi_biochemistry_mcqs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0005/3408/files/23870588240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1943/6195/files/jelededosiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9114/8454/files/mijavinepube.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 5

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_off00005d25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D25 5260 bytes
SHA-256: 3c57700dde99441474dad84e3fa98c928c5ffa639796c2e52b5d6bdc62dad89e
font_01_sfnt_off00006f12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F12 13068 bytes
SHA-256: e6f890c0d1b63b7f27624dad4bc8c67188635cbaa882f11a9cf1766f2f3424e1

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