Malicious PDF — malware analysis report

Static analysis result for SHA-256 daf2b3ce11107172…

MALICIOUS

PDF

72.5 KB Created: 2020-12-13 23:45:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 1c54c5dfc9892db9e96f445fd91c25d9 SHA-1: bba27fafdcb06f9018fab87d5fb04609c48af909 SHA-256: daf2b3ce1110717223b6a773e2c500e1961795cb6ae5f75d2f80ca003b317eb5
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 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffnew.ru/strik?utm_term=victoria+beckham+short+hairstyle PDF link annotation
    • https://mujiborabasovu.weebly.com/uploads/1/3/4/5/134590634/7d7baa966dda9.pdfIn PDF document text
    • https://wufipalowev.weebly.com/uploads/1/3/4/5/134595621/5281082.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373522/normal_5f891b82a29da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366347/normal_5f8ac6efb8298.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kavalukato/satanikesadunuvawam.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/blackstone_36_griddle_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/015febda-1de1-4557-acfb-a1b6e10665bb/vizusubetozitix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/724c10c3-e587-46fa-ae00-17e9f8b4f171/force_field_analysis_template_editable.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/marketing_activation_plan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e39e5e38-dcb4-457d-9a48-d947872173c9/91925979999.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/xuvukosalavaxi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39639d33-d81e-46ee-a708-1a4f36e80ba4/17625255876.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/fasivuzuledod.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD571 5312 bytes
SHA-256: 38d8a7c7349e9e724c1b9bdcf0b55923b6167df589c1b5363faff435d06780ca
font_01_sfnt_off0000e758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE758 3720 bytes
SHA-256: 40ef96da86b6123d577d475be460de15c41b9ca7393a8e650be4e9942aa3c64b
font_02_sfnt_off0000f2ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BA 10004 bytes
SHA-256: 816b9fb5cefb9b9ccbe1371e7e34b5fa0d9dca96dadc0338e848433a567ea512

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