Malicious PDF — malware analysis report

Static analysis result for SHA-256 408d365ddeeeec0a…

MALICIOUS

PDF

43.3 KB Created: 2020-08-01 13:14:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b57a91f346bafe3db86d7c4ec617c05 SHA-1: 3c4fa3209a3e5aae9dc22ee10f9e9b1619e5e281 SHA-256: 408d365ddeeeec0aa03211f3e4c504563765ab7502f33dd40dfa447fc290df75
194 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though partially corrupted, contains text related to 'Hq youtube to mp3' and the malicious URL, suggesting a lure to a site offering this conversion. The primary malicious URL is https://ttraff.ru/pify?keyword=hq+youtube+to+mp3, which is likely used to redirect users to further malicious content.

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=hq+youtube+to+mp3 In PDF document text
    • http://files.sansmarket.co/uploads/1/3/0/7/130740521/bitupenamitede.pdfIn PDF document text
    • http://files.marathoncountybeeassociation.com/uploads/1/3/1/0/131070561/4027231.pdfIn PDF document text
    • http://files.kellypiliouras.com/uploads/1/3/2/6/132681164/topijaseliwojex-telobofifevidu-galetazavofibeb-nitoxajuwetawop.pdfIn PDF document text
    • http://files.growingthroughlosstcsouth.com/uploads/1/3/0/7/130738993/1126096.pdfIn PDF document text
    • http://files.adventuresinmiramichi.com/uploads/1/3/1/4/131483317/pakisenadados_munetove_vonatudax.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/1/0431/3012/6496/files/53062748897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4993/4231/files/54804124163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6902/2109/files/jufawosagok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4832/1692/files/wosafoboluvilejavujid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7682/0890/files/kekaxuladatowezopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3754/1031/files/zesumazekamoron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5863/3631/files/77259061527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0922/0501/files/fizonefurolet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0432/0154/files/petipusenujugebisogix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/kugezidojopoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7519/8373/files/17808642482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4267/6648/files/pusejavoxiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9979/1268/files/kommentar_posten_powered_by_4images.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7997453156.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000583e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x583E 4944 bytes
SHA-256: 508034f9c599678e937ae3d8d5321d093f1ed4da6ddfea6b2d8eb5a17a56061f
font_01_sfnt_off00006911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6911 9944 bytes
SHA-256: 764621262e170343da4432c9c6dec61d9879167021b30211728ce5506e7091cc
font_02_sfnt_off00008b5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B5D 16092 bytes
SHA-256: c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e