Malicious PDF — malware analysis report

Static analysis result for SHA-256 85ed7bb569e9fb92…

MALICIOUS

PDF

45.0 KB Created: 2020-08-10 03:51:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8be0f0eb35e49b9c722c36955fa71dae SHA-1: c81de012da612021138ead7d7ffbffbb39f30205 SHA-256: 85ed7bb569e9fb9247bf5f2cc95c515a0b56b7837d8097c281fd30814c3ebad9
194 Risk Score

Malware Insights

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

The PDF contains a large number of links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm. One prominent link, https://ttraff.ru/pify?keyword=punctuation+worksheets+for+grade+6+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious infrastructure, likely for phishing or malware distribution.

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=punctuation+worksheets+for+grade+6+pdf In PDF document text
    • http://files.tippwheelers.net/uploads/1/3/2/6/132682681/b0215d5.pdfIn PDF document text
    • http://files.nonclinicaldoctors.com/uploads/1/3/1/1/131164250/1794057.pdfIn PDF document text
    • http://kobejob.mitzlafftrading.com/uploads/1/3/1/6/131606069/kokijezu.pdfIn PDF document text
    • http://files.fringedbenefitsdesign.com/uploads/1/3/0/7/130740127/4539935.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4897/6032/files/gajag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5765/9547/files/bifuzov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/kafozorobetexewufasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3349/2641/files/24141166884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8099/8302/files/hindu_calendar_vikram_samvat_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5652/9565/files/xupuzidinepujavadipob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1087/3765/files/turemabijugogevudevuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3638/5181/files/ninebezovok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9749/8535/files/gnostic_bible.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/64605653642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0643/5232/files/54336629265.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A1 5576 bytes
SHA-256: 7edc3243221e053b017a09ce24e254c273395a070d6c20c066d8680eeb0f492d
font_01_sfnt_off0000769d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x769D 9996 bytes
SHA-256: 0154e1c2f02277c12dbb2cba7ead06c3e48923b263699fe89b244ecd6e695d9e
font_02_sfnt_off000098d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98D2 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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