Malicious PDF — malware analysis report

Static analysis result for SHA-256 00202e06aa24e000…

MALICIOUS

PDF

71.5 KB Created: 2021-09-04 21:27:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: d02c304b2abbb12c520fa533eafd1a2f SHA-1: 0cfce5f13952d12b12c0c8b0d068a1dec3dca79d SHA-256: 00202e06aa24e0007451f32fb697aed45cc9589a7e4dcc347b0cdf626e2e0c78
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous external links, many pointing to PDF files hosted on various domains, some of which are identified as compromised CMS uploads or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or distributing further malware through these links. No scripts were extracted, and the document body was unreadable, but the link farm structure and heuristic firings are sufficient to assess the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 http://villacappuccina.com/userfiles/files/63771744701.pdf In PDF document text
    • http://holzweiss.at/xolufevu.pdfIn PDF document text
    • http://hanboo.cn/Uploads/file/2021080713044170554.pdfIn PDF document text
    • http://lamachine.nl/userfiles/file/81608730117.pdfIn PDF document text
    • http://detikakdeti.ru/img/file/83912467171.pdfIn PDF document text
    • http://dotacjedlaoze.pl/userfiles/file/nuvuwenuk.pdfIn PDF document text
    • https://himarco.ir/basefile/himarcoir/files/39473160558.pdfIn PDF document text
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b53c741f6b2---rakif.pdfIn PDF document text
    • http://www.village-gaulois.org/gestion/ckfinder/userfiles/files/12687330108.pdfIn PDF document text
    • http://elyriacatholic1970.com/clients/7/79/79c6984f8945646ae1b55d50a6b4dbab/File/9173302305.pdfIn PDF document text
    • https://wroclawmodelshow.pl/ckfinder/userfiles/files/83401107411.pdfIn PDF document text
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8c22be06a---21642886981.pdfIn PDF document text
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/bb9c0ecadebdf0bb7fd1ea72d4d2d5ee/vupegakibubi.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077b767c553e---61960619997.pdfIn PDF document text
    • http://ourjamesfamilyhistory.com/clients/1/14/146a9f92d0a296c7c29e793db058bb30/File/68415366674.pdfIn PDF document text
    • http://banghetretunhien.com/media/ftp/file/87367010725.pdfIn PDF document text
    • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077dea80e205---golexibavixepugitidasalov.pdfIn PDF document text
    • http://mextro.de/upload/files/liboxutotidivefudokewol.pdfIn PDF document text
    • http://oryginalnedekoracje.pl/userfiles/file/puluz.pdfIn PDF document text
    • https://amadesafar.ir/basefile/amadesafarir/files/biwawitivabawanerakisus.pdfIn PDF document text
    • http://orderleesushi.com/uploads/files/morebufavirem.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=ioptron+skytracker+pro+camera+mount+with+polar+scope+manualPDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b531.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB531 16228 bytes
SHA-256: dc0f748facb322983b0577193570adc141263de86ec146b538b2ff967e609295
font_01_sfnt_off0000df14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF14 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f72b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF72B 10984 bytes
SHA-256: 1bb75af0b133b7f3c9c66f6ada951460ea41d52795de5410b86954e4e62c81c1

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