Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3f1d0804d093201…

MALICIOUS

PDF

69.7 KB Created: 2021-04-27 14:11:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 3ec3d90355b376d228919533881471e1 SHA-1: 03a799e143a5d3bff4b9868823177d33100788fc SHA-256: d3f1d0804d0932018af44d0d915c27c38ea87d163132165da596ed92ef6796ee
156 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified as a 'link farm', suggesting a phishing or malware distribution attempt. The primary malicious URL identified is dugedepap.ru, which is likely used to host or redirect to malicious content. While no scripts were explicitly extracted, the PDF structure and the presence of numerous external links indicate a malicious intent to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://dugedepap.ru/strik?utm_term=kenwood+ts+450s+manual+espa%25C3%25B1ol PDF link annotation
    • https://buwuwewofopalun.weebly.com/uploads/1/3/4/0/134097592/zoxefakutad.pdfIn PDF document text
    • http://tuderoba.getenjoyment.net/81644508585.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412591/normal_60662595f2c16.pdfIn PDF document text
    • https://lomameleni.weebly.com/uploads/1/3/4/5/134597964/74f867d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420610/normal_601f1c8e6f809.pdfIn PDF document text
    • http://wejafopag.mypressonline.com/product_brochure_design.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491927/normal_602559964083e.pdfIn PDF document text
    • http://zoguponuwuxoli.medianewsonline.com/juwavokeminomapove.pdfIn PDF document text
    • https://xakolino.weebly.com/uploads/1/3/1/4/131453712/6fdc74.pdfIn PDF document text
    • https://petuxomurekag.weebly.com/uploads/1/3/0/8/130874153/1e9197.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/tikofaketonub/98666557592.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89bad8b9-65fe-4b8c-900d-1eaec47a7d28/kuridogivas.pdfIn PDF document text
    • https://s3.amazonaws.com/popisiburewixuj/sitiw.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/rivavifafurase.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/266a4271-4563-4929-9eb3-21a0aab087aa/dovufaloduwuronolejoda.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/82792300576.pdfIn PDF document text
    • http://sitafefisoju.atwebpages.com/15206778953.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/learn_english_vocabulary_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/a4_sheet_border_design_images.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dffcdf60-9d66-4443-826c-92ed23c1144e/71143383735.pdfIn PDF document text
    • https://s3.amazonaws.com/mokixetat/pupepifaxanaja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8f4efb8-4b89-43c7-9e2d-ffb1a75eaacd/10245511901.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d11e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD11E 5636 bytes
SHA-256: 9231447b5e318a28b515cbd766e39e9fb115510d44cf6bf1729e18dbabc5c28d
font_01_sfnt_off0000e420.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE420 10268 bytes
SHA-256: 80dc6cafae41dc92ae81075329f22f9dd7a3ce03b595e3e3c9df02c0472a364f

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