Malicious PDF — malware analysis report

Static analysis result for SHA-256 47c723eb51ec147c…

MALICIOUS

PDF

46.2 KB Created: 2020-08-23 06:23:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 421f3b47e772993dd84911eae1f2a43c SHA-1: 94155827283679cee5cc587985c4bfbd848515bb SHA-256: 47c723eb51ec147ccb382d5e6f8133a8bb4816217051701770c825af1261c6e5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors, as indicated by the PDF_SEO_LINK_FARM and PDF_MALICIOUS_REDIRECTOR_LINK heuristics. The document body, though heavily obfuscated, contains text related to a 'compare plugin for notepad' and includes the primary malicious URL. This suggests a social engineering attack aiming to redirect users to 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=compare+plugin+for+notepad+v7.+5.+6 In PDF document text
    • http://resoxa.deborahkeyserdion.com/uploads/1/3/1/6/131606289/f5019008.pdfIn PDF document text
    • http://lawaj.kapanshipman.com/uploads/1/3/1/0/131070447/2800077.pdfIn PDF document text
    • http://nobunepe.fluidfitperformancetraining.com/uploads/1/3/1/1/131164250/9cd8b392710.pdfIn PDF document text
    • http://files.stpeterschildcarecenterinc.com/uploads/1/3/0/8/130813413/fanidad.pdfIn PDF document text
    • http://files.kaseltravel.com/uploads/1/3/1/4/131482999/lavom-boxok.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/1/0428/2440/1063/files/fighter_5e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3109/3397/files/46894310247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6189/3534/files/58528492195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3367/9256/files/48506747128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/xeriwosarosupedakuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/joworivebotenar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3092/0871/files/healthy_fruit_smoothie_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5522/5763/files/gusosiratogumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9508/4456/files/77888341904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2623/6071/files/vexelobezaf.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_off000073a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73A5 5540 bytes
SHA-256: e124d2a96ea4a33b3094a9c694bc067fee00deccfe52d236871f7a4f1c9e33f7
font_01_sfnt_off00008676.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8676 10916 bytes
SHA-256: 90732c38739d75ff626d9d717417473335650ca45f32e0e90cbb4bc7368e9c5f

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