Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f0ec4a5bd118dc6…

MALICIOUS

PDF

38.0 KB Created: 2020-08-18 13:11:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80a7808960a9bcf9b58a300742680918 SHA-1: 02a3efd6c3588a3c22f0bf0a3079eb5f5a1c23e6 SHA-256: 8f0ec4a5bd118dc6333396647ab35fe50b001fbaf785bcdc37b91a80e09412cc
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the critical heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.ru/pify?keyword=free+plants+png+format. The document body, though heavily obfuscated, contains this URL and other embedded links, suggesting a lure to a malicious site. No scripts were extracted from this sample.

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=free+plants+png+format In PDF document text
    • http://files.bethelchristian.com/uploads/1/3/0/9/130969671/buzesazugi.pdfIn PDF document text
    • http://files.groepberton.com/uploads/1/3/0/9/130970008/815233dbfad4b.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/1/0430/8946/1410/files/34069971827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rexalomofovuwazeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/devebezaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/wojiretoxomebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gomejalubewetilukifij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/ledapigomasatoxim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6881/5528/files/plague_inc_fungus_mega_brutal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0449/2950/files/statistical_analysis_in_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7340/7893/files/xupefep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8208/7576/files/24671997726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2975/8103/files/43652173804.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 3

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_off00005818.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5818 5176 bytes
SHA-256: c75dd6f38919b77231859344d623e7b7578581314c0d86c9d0c7dc7ce59574a5
font_01_sfnt_off0000699f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x699F 9864 bytes
SHA-256: f6b46e1fc7b1b6668c4445cb93e31fe4cf5f12c67995101bf0998a420d6944a1

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