Malicious PDF — malware analysis report

Static analysis result for SHA-256 0471528f0ba6016b…

MALICIOUS

PDF

34.9 KB Created: 2020-08-17 13:25:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 362bfc4d0bec8c234818c4cca6022c6e SHA-1: 3eb26d564be36c724bc0634dae962898e2475648 SHA-256: 0471528f0ba6016bbb1ce6d608864606ca40b13fb8f72483a69338fe2d443083
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, many of which point to redirector infrastructure. The primary redirector URL, 'https://ttraff.ru/pify?keyword=avneet+kaur+photos', is flagged as malicious. This suggests the document is part of a link farm or SEO poisoning campaign designed to phish users or lead them to malicious content. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=avneet+kaur+photos In PDF document text
    • http://rodur.toadsandtulips.com/uploads/1/3/1/3/131383483/8494441.pdfIn PDF document text
    • http://files.wavehogsurfshop.com/uploads/1/3/1/4/131407227/5606148.pdfIn PDF document text
    • http://files.ohsing.com/uploads/1/3/1/3/131380612/toxasefanaregeki.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/1/0432/7122/5502/files/6238920383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/36463178952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9573/6988/files/koteborisuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4410/1544/files/tavidotajoxuzogiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2412/9952/files/ioptron_skyguider_pro_ebay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4316/6107/files/somopopujejuti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5552/1695/files/how_to_install_cydia_without_jailbreaking.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8738/9087/files/75508668097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9577/5650/files/wopavavodebizizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6647/4139/files/xatotogipopakepef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3543/2859/files/bufisisuromi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5824/9376/files/tekuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4405/1871/files/90764821337.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 6

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_off00004c8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C8C 4988 bytes
SHA-256: 6b788b1b1aadc66eddbc773064b5fbb0b4541970d390e00e06107b706bd41675
font_01_sfnt_off00005d7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7B 9772 bytes
SHA-256: 3eccee7c6ae08365783728c8ab290cb526f07ea16ef62bfac4911191f2052315

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