Malicious PDF — malware analysis report

Static analysis result for SHA-256 fee624467b56bbf6…

MALICIOUS

PDF

89.4 KB Created: 2021-03-22 10:59:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 06e26777501ab4d98b036829889902f8 SHA-1: a11e953ada8247270778219e3df59ed81a40a1f5 SHA-256: fee624467b56bbf65921f8e4bb5fa47adfe6ae50a9fca6a0a29cef3f5427bfcc
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic, pointing to various domains. One prominent URL, 'https://midufefew.ru/wix?keyword=porunga+dragon+balls+dokkan+battle+2020', is directly associated with the document's content and is flagged as suspicious. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://midufefew.ru/wix?keyword=porunga+dragon+balls+dokkan+battle+2020 PDF link annotation
    • http://info-pages.ru/30766325663ml1qq.pdfIn PDF document text
    • http://tozofuji.scienceontheweb.net/ethan_hawke_book_rules_for_a_knight.pdfIn PDF document text
    • http://muzhskoizhurnal.ru/mivenog3z5x9.pdfIn PDF document text
    • http://qrettalq.online/civic_2009_manual_fipez8dcc.pdfIn PDF document text
    • http://instapriz24.online/35949324723mj6m7.pdfIn PDF document text
    • http://vexezujuzas.scienceontheweb.net/dazutotunu.pdfIn PDF document text
    • http://kafidovomiguvo.mywebcommunity.org/arabsat_frequency.pdfIn PDF document text
    • http://gedatidigog.sportsontheweb.net/ryobi_airstrike_nail_gun_not_firing.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://bogalibamadom.myartsonline.com/desde_que_edad_un_perro_es_adulto.pdfIn PDF document text
    • https://s3.amazonaws.com/gimufesajo/33269991315.pdfIn PDF document text
    • https://f07eb630-23ff-4298-a1df-d7940f1ba2dc.filesusr.com/ugd/097a5b_62a429b2f8d045a797784c940cefa9a7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/98253778038.pdfIn PDF document text
    • https://6d4cd3b7-91e9-43ac-92b9-205473f1e50d.filesusr.com/ugd/28146e_c4d4b7709bc1407891aa80cd8eaad0ae.pdf?index=trueIn PDF document text
    • https://4e33067b-0f13-4bed-bb9c-ea95f768fd7c.filesusr.com/ugd/23924c_59db8d2354f84f649d32f234988cd6d7.pdf?index=trueIn PDF document text
    • https://451cdc1f-766e-44a1-8a9d-f9db2ecad5ed.filesusr.com/ugd/0f0d48_398c91df42b140efbd70f7142cd803b0.pdf?index=trueIn PDF document text
    • http://nopawalaxuwaw.onlinewebshop.net/64004798519.pdfIn PDF document text
    • https://4993f9ff-345c-4c03-a8ec-d4f8dac664d6.filesusr.com/ugd/debbe1_1ca20ee57f59481eb2318a7493cc4801.pdf?index=trueIn PDF document text
    • http://tapoloferazuziw.atwebpages.com/25270727159.pdfIn PDF document text
    • https://s3.amazonaws.com/savifin/indian_wedding_invitation_video_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/65902190783.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/cursive_worksheets_free_printable.pdfIn PDF document text
    • https://4ad55601-b8ab-4ae0-bc0e-e90069072326.filesusr.com/ugd/3aca14_7adcc5e9e2d3449bab39f9a6e2c28d1f.pdf?index=trueIn PDF document text
    • https://171e2b11-24ea-4535-acac-f971ec821c4b.filesusr.com/ugd/a07927_949d1cb5a2574573a7e23422416bcc5b.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000113d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113D9 5308 bytes
SHA-256: 6ef34e01a9104057badc7b02f04d2db643f24f591de59eb0a988893ac8b8b2f8
font_01_sfnt_off000125e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125E6 10480 bytes
SHA-256: e50613d44316233e1497954a4ca127856a898047a62e4c16712101750bfa1492
font_02_sfnt_off000149b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x149B1 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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