Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0aee1502fcda1eb…

MALICIOUS

PDF

74.9 KB Created: 2021-05-08 12:40:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 463e5afd0f8b4aaba7775a0f0f13c708 SHA-1: 2841eb45e664bcd3e5696dde8045a10951d0b397 SHA-256: d0aee1502fcda1eb48a2e7363fef6c9735c13ebe728b0ef801f902e82510f85b
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a large number of external links, many pointing to disposable domains, suggesting a link farm or phishing operation. One of the primary URLs, 'https://dugedepap.ru/strik?utm_term=dewalt+20v+drill+combo+brushless', indicates a potential lure related to product sales.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=dewalt+20v+drill+combo+brushless PDF link annotation
    • https://mavezuwunokil.weebly.com/uploads/1/3/4/6/134627141/tefexukuge_xunus_waduxux.pdfIn PDF document text
    • http://rubyshup.space/modern_mathematics_form_4_exercise_with_answer2k2ic.pdfIn PDF document text
    • https://pevamuwewewi.weebly.com/uploads/1/3/4/6/134636281/8238859.pdfIn PDF document text
    • https://bopazexujow.weebly.com/uploads/1/3/4/8/134876268/gowajesux.pdfIn PDF document text
    • https://faxipanonuk.weebly.com/uploads/1/3/4/3/134352952/bediwamixi.pdfIn PDF document text
    • http://itrom.fun/60783814457k43z2.pdfIn PDF document text
    • https://madugonado.weebly.com/uploads/1/3/2/8/132815119/gepekozo.pdfIn PDF document text
    • https://zaxalaxixu.weebly.com/uploads/1/3/1/6/131606365/fopofejeku_fixijutu.pdfIn PDF document text
    • http://exampl1214.com/73466086648tk88h.pdfIn PDF document text
    • https://nakoliveb.weebly.com/uploads/1/3/4/5/134503524/1630778.pdfIn PDF document text
    • https://pobipumobixox.weebly.com/uploads/1/3/1/0/131070364/jojatomevoponabi.pdfIn PDF document text
    • https://buxijabis.weebly.com/uploads/1/3/5/3/135329720/4a34cc792.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/d3c568f7-38de-43f9-8eb1-915479825b17/matter_and_interactions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20dc6157-21be-463c-a784-144458906473/portrait_photography_poses_cards_bundle.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef14c745-80cd-4380-adfb-2bf784d42d07/north_carolina_health_education_standards.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fd18a90-12dc-4fbc-bd8e-4ec7793c9a30/best_palmistry_app.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42892b67-cf27-449b-8cb4-c9b125adb9cb/xutugedego.pdfIn PDF document text
    • http://romipozaxijida.rf.gd/zizofufepexuka.pdfIn PDF document text
    • http://xapipulasojogod.epizy.com/bozonam.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_off0000e2b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2B1 5744 bytes
SHA-256: 69d57c10f296e4b0977f60703afa1b1585179f7b455f6442726bf62012582a4f
font_01_sfnt_off0000f62e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF62E 11860 bytes
SHA-256: d50a9d41d70c32aa6eb3901e2cbd2cb3b11dad3b6c371f6abace1bb3b401ebd1

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