Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed7300bbec830285…

MALICIOUS

PDF

45.1 KB Created: 2020-08-03 13:45:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 87411afe9ee0ad17991bceb0a6a9aa35 SHA-1: 23c516e782b83eccee3bef562404aae34874aa82 SHA-256: ed7300bbec8302855646a90885bb67c0b739d8973cfe1fedbf00e44c00ed897e
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one heuristic specifically identifying a malicious redirector link. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=authoritative+classroom+management+style+pdf', which is flagged as malicious. This suggests the document is designed to lure users into clicking on this link, likely leading to a phishing or malware download site.

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=authoritative+classroom+management+style+pdf In PDF document text
    • http://files.krystalwatersystems.com/uploads/1/3/2/6/132695818/4744849.pdfIn PDF document text
    • http://files.willwootenart.com/uploads/1/3/1/1/131164488/varotenepeje_tefupudibuna.pdfIn PDF document text
    • http://files.finalmile.ink/uploads/1/3/0/8/130814605/787699.pdfIn PDF document text
    • http://files.sopoochtraining.com/uploads/1/3/2/8/132815961/kawivibugakovuj.pdfIn PDF document text
    • http://files.ingloriousbettas.com/uploads/1/3/1/4/131436978/a4a049dc9cb.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/1/0432/4202/9224/files/rutelumexuginiwivitijurug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/loxidunadubufurepetiverox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4484/8295/files/nogekinikivufeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2627/6775/files/fijolukogazejojavogabuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4143/9400/files/1723066270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8213/0332/files/kewonanalumibivemoraxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9522/6523/files/calus_mini_tool.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/56096991692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/76614813577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/wisokezidetubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voxetevew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/80349342391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8602/0761/files/tixeboxat.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_off000071c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71C9 5720 bytes
SHA-256: 4f7277e5efba6d7738587862a365fa2f48f9648f589404c1b2bdcd7228289747
font_01_sfnt_off00008525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8525 10040 bytes
SHA-256: a90c55f4acc56f65475d6cf75edba83f23ac58a58d9b762eb8496b51b766218e

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