Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3e7888a881ae9a4…

MALICIOUS

PDF

43.9 KB Created: 2020-08-27 22:18:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3860af4f0f339ece0dd8fc80532ef76 SHA-1: cf693532e65641a38459195d83b5431dd27b5b99 SHA-256: f3e7888a881ae9a448a04b0a95de362de8f110ab43634847ebf440727ffcbb2f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector at 'https://ttraff.ru/pify?keyword=a+walk+to+remember+book+pdf'. This suggests the document is designed to trick users into clicking the link under the guise of downloading a book, leading them to malicious infrastructure. 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=a+walk+to+remember+book+pdf In PDF document text
    • http://tuvefej.thomas-webb-arts.com/uploads/1/3/1/3/131398064/lonowuraxerure.pdfIn PDF document text
    • http://files.corporateartvault.com/uploads/1/3/0/7/130740623/xotofa-kawut.pdfIn PDF document text
    • http://files.isr2020.org/uploads/1/3/0/7/130775405/furegezusedenaf.pdfIn PDF document text
    • http://welodak.generationxgoesglobal.com/uploads/1/3/2/6/132695643/jofepoxidoma_sogekomumu_ludeliz_vuroju.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/1/0431/0581/2629/files/19265660277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/0081/5774/files/clear_acrylic_sheet_singapore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7147/9713/files/59129390175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8570/8953/files/rigosixixifanomofetiseb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4275/9071/files/basemesowavof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/5645/7880/files/17233491136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3505/7559/files/achyutam_keshavam_krishna_damodaram_audio_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6923/5619/files/faderulanuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6285/2761/files/singer_model_66.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0742/6216/files/26908766458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4354/5237/files/delinaroraret.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000624e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624E 4928 bytes
SHA-256: 6fbe7e2622aa6e5ad00a06eee3b49f44d544e4434c9d4bfdcdbb088d8c9acc38
font_01_sfnt_off0000731f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x731F 9884 bytes
SHA-256: dcfd285e2c7a17fba136dd46b5121e29c23d8e17689f16764095173b763ea4e8
font_02_sfnt_off000094ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94EE 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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