Malicious PDF — malware analysis report

Static analysis result for SHA-256 9852e01c2f65884f…

MALICIOUS

PDF

102.4 KB Created: 2021-05-15 23:21:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: e69effa6adad1f28fe8bd9bac3010f3a SHA-1: 28b53b0b247178d2a281ae93f40fb770af357a82 SHA-256: 9852e01c2f65884fbf49ce73990ee8af4f17d0b9441f322c1f7e81a71f1118df
186 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and a machine learning classifier, indicating a high likelihood of malicious intent. The document contains a link farm with numerous external URLs, including one that appears to be a redirector for a search term, suggesting a phishing or scam attempt. The presence of embedded URLs and the overall structure point towards an attempt to trick users into visiting potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://druttle.ru/strik?utm_term=best+price+kitchenaid+stand+mixer+canada PDF link annotation
    • https://namavikevak.weebly.com/uploads/1/3/2/7/132740743/ace7ee1dd.pdfIn PDF document text
    • https://talipugetajizan.weebly.com/uploads/1/3/4/8/134862074/9f5ad728ab.pdfIn PDF document text
    • http://boledidezole.22web.org/fobafufegidinavijobe.pdfIn PDF document text
    • http://com-servers.online/27459538483c7vaa.pdfIn PDF document text
    • http://titoto.xyz/coleman_powermate_5000_maxa_er_plus_wont_startxr08w.pdfIn PDF document text
    • https://bawejitomu.weebly.com/uploads/1/3/1/4/131438353/ab9c1d93f7d3e9.pdfIn PDF document text
    • https://najafasow.weebly.com/uploads/1/3/4/3/134325135/a08b18195568e8.pdfIn PDF document text
    • http://de-bewertung-889562.icu/telugu_action_movies_2016alrma.pdfIn PDF document text
    • http://nosinoski.shop/sofewumezagadelipijugs08g.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://5a060084-92f5-4e09-b02e-bbac8bb45871.filesusr.com/ugd/05c943_25278d1257094096806dedad79112fed.pdf?index=trueIn PDF document text
    • http://taliwugoj.rf.gd/novemiloxipive.pdfIn PDF document text
    • https://cb8582fb-ab29-4f13-bfd4-623ca244ab52.filesusr.com/ugd/d61b30_8c23ccb526e14f309bf61dc3eaf23a4e.pdf?index=trueIn PDF document text
    • https://5f90d536-2a72-4461-adff-280afd3056cb.filesusr.com/ugd/27c394_cb6bdd27d32246b7a729a3b034385af0.pdf?index=trueIn PDF document text
    • https://d1ee23ee-9ccf-45b0-80ef-1e1ff1f657c4.filesusr.com/ugd/9ef0c3_7144bf3d94be460290fa15fc27c087e8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zedilegol/56262839583.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/vivisuse.pdfIn PDF document text
    • https://s3.amazonaws.com/dazutun/mdr_tb_guidelines_2018.pdfIn PDF document text
    • https://298c7861-702e-4dad-8e6b-798164301c36.filesusr.com/ugd/98adb1_3c8e578dad024dcf88b9198fa379fb52.pdf?index=trueIn PDF document text
    • http://goxozabakokivo.rf.gd/what_are_socially_disadvantaged_groups.pdfIn PDF document text
    • https://633ee4a5-ef7f-4c35-8c02-ac6c60bc6361.filesusr.com/ugd/0ab374_7022df84626f4b1786209dccda89cc3d.pdf?index=trueIn PDF document text
    • http://puzexexaniledow.epizy.com/pubg_mobile_release_date_in_android.pdfIn PDF document text
    • https://6c8027e1-9878-41b3-a9ef-32ba2b6bcd02.filesusr.com/ugd/185811_213410ab032544a5a0cca3a754c08dc5.pdf?index=trueIn PDF document text
    • https://d74058ad-8c31-4576-aeb4-582a73b10e1e.filesusr.com/ugd/666c83_34c1afb3a3ea45ceaca5b63645e50d71.pdf?index=trueIn PDF document text
    • http://jowemalawebabe.rf.gd/bioremediation_articles.pdfIn PDF document text
    • https://189c2d36-84ff-4b81-9465-96c33c1d3b91.filesusr.com/ugd/35ddae_15c4e97e2a0942bb8b86373cd5d11861.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15137 5464 bytes
SHA-256: 6cc2a7b2f994939f5ed33c34848735f5f05af158cc35c70936b360869e8c7e03
font_01_sfnt_off000163a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x163A9 11836 bytes
SHA-256: f7dc6d5e883e8e2db6ef19426735faeb95678e4e5a86196d5d3f464d977e325c

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