Malicious PDF — malware analysis report

Static analysis result for SHA-256 52f0ba5ef16732af…

MALICIOUS

PDF

38.4 KB Created: 2020-08-18 15:10:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a01bbd48e94ec73c8aae2b143c1cbb8a SHA-1: 2ab63544cdc9ec2ed2b5c1acc6ae61bf1a67cc0f SHA-256: 52f0ba5ef16732af9c32e23a9d570324bb4f730efb16a88ea9b1580e613446b9
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=insulated+roof+sheets+for+conservatory'. This URL is embedded within the document body, suggesting a social engineering lure related to home improvement. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy to obscure the malicious destination. The ML classifier also strongly flagged this PDF as malicious.

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=insulated+roof+sheets+for+conservatory In PDF document text
    • http://jumaro.createmoveconnecttoronto.com/uploads/1/3/2/3/132303338/nivegajanud.pdfIn PDF document text
    • http://files.redfieldfarms.com/uploads/1/3/0/7/130775304/1896216.pdfIn PDF document text
    • http://files.jeremycollins.org/uploads/1/3/0/8/130874129/bepabidubepino.pdfIn PDF document text
    • http://files.sarahfowlergraphics.com/uploads/1/3/1/4/131408502/6301938.pdfIn PDF document text
    • http://files.thetlacademy.shop/uploads/1/3/1/3/131384789/dupive-madelubupazape-dezarekinoza.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/1/0435/3658/0759/files/xoxofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3356/files/resewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/75878836206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2304/8610/files/53117048050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46150969179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4896/8090/files/48207261945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6499/9588/files/23182499971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5110/6972/files/42109374411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9065/4870/files/rikupik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5761/8850/files/45903579421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3899/7669/files/63824210508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9232/files/92619203902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/buzuxunatexuxapelut.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 8

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_off0000599f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x599F 5208 bytes
SHA-256: 45bdea48cdc98b07e2ccf695cb7a9ba3ea67c07640701e25f75e10b382053033
font_01_sfnt_off00006b51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B51 9692 bytes
SHA-256: c38c74164c4a89e7005cf5fcc6db55d41379c9ddf6d9d8eae82b991de50b1402

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