Malicious PDF — malware analysis report

Static analysis result for SHA-256 32634bb0b7005a2e…

MALICIOUS

PDF

73.7 KB Created: 2021-05-25 18:37:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 5083432cb4167806c70fbf8a88c9db0d SHA-1: 98c241aace7896de9b6df750763c76920de04e5d SHA-256: 32634bb0b7005a2e64b329e59a131e7a4393b9ed9f5f687655abfbb74eb72cde
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 0.9999

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://vilenefex.ru/strik?utm_term=all%25C3%25A9luia+magnificat+emmanuel+partition PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4500882/normal_60130c86dce6f.pdfIn PDF document text
    • https://zoxogonufi.weebly.com/uploads/1/3/4/9/134900606/9963916.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470552/normal_600f48e127439.pdfIn PDF document text
    • https://zelejipez.weebly.com/uploads/1/3/4/3/134353750/474f77b58a5.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/59153e02-525b-4b5a-b037-504d878178e6/58083495430.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/16712222141.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/38442390757.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de205118-aed7-42ab-9a52-10957d2b4545/dish_network_losing_channels_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/030c3426-80ed-4253-8c5d-479f9de684ff/clean_bulking_diet_plan.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/28154572424.pdfIn PDF document text
    • https://s3.amazonaws.com/legobegutulo/final_fantasy_7_remake_part_2_release.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/spotify_apk_premium_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/skype_for_android_2._2_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f51ab76f-2e1a-42fe-a5dd-8cea8af34d60/kotor_2_dantooine_zherron_quest.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbb139ca-7501-4248-a23f-d34600dfb2f1/satekuralebabu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bec1ef5-324a-438d-ac4e-19306b589fa5/dbt_workbook_for_anxiety.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/fovoberibepurusolewixelad.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/what_is_centripetal_force_formula.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_off0000e2e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E2 5288 bytes
SHA-256: 10fdb7dcbf9f9621ed8dea3619843e28000717b9e2176df3e4b2a136636a6415
font_01_sfnt_off0000f48f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF48F 10192 bytes
SHA-256: 2bced20f307dc78fb5f4d1a8bad1549be69ab7e148dba967fa080b06ce0cfc96

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