Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7ce26fed121966e…

MALICIOUS

PDF

91.4 KB Created: 2021-05-15 16:52:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 1731d256c9a0ab241548bba081273140 SHA-1: c6d7587f69e69914bbf651ee353fddad2c98bc6d SHA-256: d7ce26fed121966ee483b0484e1949a91ace16d8de4d0a5852b76e14f5b41865
126 Risk Score

Malware Insights

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

The file is a PDF that contains numerous embedded links, many pointing to disposable domains, suggesting a phishing or credential harvesting attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure for a "Meade autostar controller manual", likely to trick users into clicking the malicious links.

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 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://xezojetit.ru/strik?utm_term=meade+autostar+controller+manual PDF link annotation
    • http://lnstagramcopyrightcenter.com/sharepoint_2013_view_workflows_in_progressyvbu9.pdfIn PDF document text
    • http://tixshopclub.fun/witenefulaxavavdgewu.pdfIn PDF document text
    • http://ampinternational.org/vileluvepekeruduswh99z.pdfIn PDF document text
    • http://tesugujinarijag.mywebcommunity.org/nwn_ravenloft_module.pdfIn PDF document text
    • http://natur-bio.space/what_does_the_number_404_mean_in_the_biblea4omo.pdfIn PDF document text
    • http://kleomaften.online/jipavigaxujarofakopawy8d94.pdfIn PDF document text
    • http://trend-sales.fun/4273345881hkbxm.pdfIn PDF document text
    • http://zaparipajomigi.scienceontheweb.net/light_reflection_and_refraction_class_10_important_questions.pdfIn PDF document text
    • http://suxawid.iblogger.org/63035429163.pdfIn PDF document text
    • http://rogijowop.sportsontheweb.net/sibeneziziloviditare.pdfIn PDF document text
    • http://nupifijaw.getenjoyment.net/ahmedabad_tourist_map.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/40009212614.pdfIn PDF document text
    • http://prizinsta24.site/91827042771rou83.pdfIn PDF document text
    • http://axecheat8.xyz/fajiwifinagwau7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://995be609-08d3-41b1-a6c0-90e53670bcec.filesusr.com/ugd/9988e1_6e72ecf9c3a141c198fbdf8cf42b5071.pdf?index=trueIn PDF document text
    • https://1e438cd7-6f3b-42ac-a97b-d13a75fa135b.filesusr.com/ugd/0c268c_a73bc56696cf4d978dbde1508352f502.pdf?index=trueIn PDF document text
    • https://de2ee6d5-caaa-4265-b15c-40100ab77d99.filesusr.com/ugd/d43733_0909297185f0454db15480f5d789a0af.pdf?index=trueIn PDF document text
    • https://86cafecd-0af7-43e6-b578-14605c742a6c.filesusr.com/ugd/c4ddd0_5566749daf2d40fdb75aacac71e68234.pdf?index=trueIn PDF document text
    • https://e905a76e-7bc1-418c-be29-e8eda1603e86.filesusr.com/ugd/3fb32a_552e97223a994c5f860bb3d5f7fb7cf5.pdf?index=trueIn PDF document text
    • http://fivamoxopel.epizy.com/nkjv_study_bible_large_print_genuine_leather.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_off0001281d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1281D 5088 bytes
SHA-256: 6278792269faf66978ac048520c94e9bebecb30db28e9283e1555d85ef1aa4d3
font_01_sfnt_off0001395f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1395F 11500 bytes
SHA-256: 216938086f665881f495f5e2d5c145e445c30c7a12a6da228abdb08c77874f2a

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