Malicious PDF — malware analysis report

Static analysis result for SHA-256 d470d5969d48058e…

MALICIOUS

PDF

71.7 KB Created: 2020-12-23 23:35:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 8fd9f27c209c4d903e9f652d2cdbc5f3 SHA-1: d0c52bd367b38b2650120324754e1753fce9f005 SHA-256: d470d5969d48058e91620c6b1a8e9a36b9e484a020b72eb194c845701d1133a3
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/strik?utm_term=how+to+draw+monster+trucks+book PDF link annotation
    • https://muxosafexokole.weebly.com/uploads/1/3/4/4/134485240/podifixidoz.pdfIn PDF document text
    • https://cdn.sqhk.co/zevivovakok/hd8Tii9/orange_tree_resort_in_scottsdale_az.pdfIn PDF document text
    • https://cdn.sqhk.co/nodomepe/3jjTZ28/playstation_5_release_date_uk_pre_order.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382430/normal_5f8c9d334c8aa.pdfIn PDF document text
    • https://tifajanos.weebly.com/uploads/1/3/4/8/134861866/69335f17a89.pdfIn PDF document text
    • https://piteselijofer.weebly.com/uploads/1/3/4/6/134608400/5093739.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369928/normal_5f957ffcec20d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ed63d65-c914-4f9f-9577-4add93ac4cdd/38600843362.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/48941976423.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddb860bf-3fa2-4776-8b6a-d52ecd282d5d/a_long_walk_to_water_ebook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07bad052-58f0-4b17-9ce4-8a59dbb695a0/67988308858.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a100f022-5df0-4522-9ca9-c84a934a2ac4/96689711344.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74924dc9-b459-449b-b415-7c6d5a1a804b/xutetafan.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_off0000dcef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCEF 5308 bytes
SHA-256: be6fe4bd19ea4780b2715af238149c345488d20d5ebb87bcd66fad6590d226a2
font_01_sfnt_off0000eef4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF4 10304 bytes
SHA-256: fdee87dafa90439e1084e0e962f9445f8486a9bcac8b9d2604cdb26b26913ab5

Open this report in the interactive analyzer, or submit your own file for analysis.