Malicious PDF — malware analysis report

Static analysis result for SHA-256 c75a0e573cc597e8…

MALICIOUS

PDF

92.2 KB Created: 2020-12-11 21:40:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 3309cec49ae9e1be9fa22db4d21d89df SHA-1: 1891a6273e6471c2d15394719666718fd5cd855b SHA-256: c75a0e573cc597e87bad87c11904fdf7ff083cbe96af4b8e03c019adfd05754b
156 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing document and hosts a large number of external links, likely for SEO manipulation or to host malicious content. The embedded URL points to a suspicious domain, suggesting an attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, contains text that appears to be a lure related to a popular media title.

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 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://traffnew.ru/strik?utm_term=battle+of+earth+part+2+halo PDF link annotation
    • https://jesokalatozu.weebly.com/uploads/1/3/4/5/134591365/43dd4d.pdfIn PDF document text
    • https://nudegono.weebly.com/uploads/1/3/4/6/134682657/sedevuwolakezenipoji.pdfIn PDF document text
    • https://nanarazoru.weebly.com/uploads/1/3/4/8/134859944/memoperiz.pdfIn PDF document text
    • https://lugagixoweliw.weebly.com/uploads/1/3/4/2/134234548/numuwufa-potagisufim-jixuwavewux.pdfIn PDF document text
    • https://gewujezugiwo.weebly.com/uploads/1/3/4/7/134754524/5179371.pdfIn PDF document text
    • https://peniwomafases.weebly.com/uploads/1/3/4/7/134705361/675113601fff4.pdfIn PDF document text
    • https://zosufolukariv.weebly.com/uploads/1/3/4/7/134755865/378213.pdfIn PDF document text
    • https://zodujojon.weebly.com/uploads/1/3/4/3/134321756/pimogigefedigiso.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wujodibu/central_florida_inshore_fishing_report.pdfIn PDF document text
    • https://s3.amazonaws.com/vatakefojunib/35862300624.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc30157c6d96458362fd63e/t/5fcaf30311c29807e6cfed99/1607136003532/netflix_account_cancel_subscription.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/14652772872.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/zotalofubejawaje.pdfIn PDF document text
    • https://s3.amazonaws.com/mejawiwomak/1950844066.pdfIn PDF document text
    • https://s3.amazonaws.com/varoximu/18072061561.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfeb4b7ee8e70759ede07/1606221492988/ms_office_2010_book_in_hindi_download.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_off00012da5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DA5 4992 bytes
SHA-256: 1cbe2252e72cfb8fe56b39884efc64dbbfacff38e9f53987be0bc59589b21009
font_01_sfnt_off00013ea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EA1 10920 bytes
SHA-256: 83440290865a9612fe2938d346e0b2d0832ebc1038a0f2121e1ff7f96c3aaddf