Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f95fdf9751ea4ee…

MALICIOUS

PDF

85.7 KB Created: 2021-09-06 21:48:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: ede15bdaa3f3b06e9107d0bb8e611ae3 SHA-1: 734bc41a567f3def77bc759aad0d25e8abe443ad SHA-256: 6f95fdf9751ea4ee83a5159d63b98387ea59c33967ca94b618fbe14d1e2b8fda
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external sites, many of which are hosted on compromised or disposable domains, suggesting a phishing or malware distribution attempt. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely provides a password to decrypt a malicious archive, a common tactic to evade security filters. While no scripts were directly extracted, the presence of embedded URLs and the overall structure strongly suggest malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://gzlmjx.com/data/home/bxu2343160066/htdocs/uploadfile/files/rujuweliwagowe.pdf In PDF document text
    • http://gorisum.net/fckeditor/upload_file/file/97922471292.pdfIn PDF document text
    • http://www.minaakshimajumdar.com/fckimages/file/6080675804.pdfIn PDF document text
    • http://dalnoboy.net/data/filestorage/upload/files/nazuz.pdfIn PDF document text
    • http://www.deopendeur.org/imgUser/file/35738436487.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160e6b197961de---nututibekepatatiboku.pdfIn PDF document text
    • http://cephedanismani.com/images/pages/file/80032638703.pdfIn PDF document text
    • http://studio-castiglioni.com/userfiles/files/pujilafujupedenolazofuve.pdfIn PDF document text
    • https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160b296efcc6b2---52814577094.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aaa7f0a58bf---kulat.pdfIn PDF document text
    • http://allg-gyn.ch/userfiles/file/72374780548.pdfIn PDF document text
    • https://kawanmto.net/contents//files/letawirulodesop.pdfIn PDF document text
    • http://assotechne.eu/userfiles/files/12724846146.pdfIn PDF document text
    • http://xn--365-pn7mwb654m2qn.com/ckupload/files/gezisujikil.pdfIn PDF document text
    • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acc139455c4---pesevekudesafek.pdfIn PDF document text
    • http://tehnicgaz.eu/files/file/funomunorujuxagu.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/36d59a7627a68886282f7f228b8e4514/repiwunisalilukemukabeno.pdfIn PDF document text
    • http://cuacuonanbinh.com/userfiles/file/jatus.pdfIn PDF document text
    • https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/2fa7f03f6827fa6c160cc223fe8c1ed9/lunogevajetifonekek.pdfIn PDF document text
    • http://ricoconsultingattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/68404931290.pdfIn PDF document text
    • http://sprostredkovanieuverov.sk/res/file/sebikutadivapugasisesi.pdfIn PDF document text
    • https://eatorhours.org/e-bussiness/fckimages/file/29135534436.pdfIn PDF document text
    • https://agatanorek.com/files/file/vuwuvetexunaruvidasunaf.pdfIn PDF document text
    • http://homelife-superstars.com/image/files/41866581547.pdfIn PDF document text
    • http://abacusnancy.com/userfiles/file/xigisuteramelagutiniw.pdfIn PDF document text
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16081ef0ca936e---lajidobikexafado.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=proteger+pdf+sin+contrase%C3%B1a+onlinePDF 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_off0000e49b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE49B 11004 bytes
SHA-256: 0cbdfad9cb861a3dcb14f69b5a2c6213cc1b63e2b09389957b436a81b0ae6a15
font_01_sfnt_off0000fdd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDD0 19108 bytes
SHA-256: 4ccc10d09467ca9e645872f0f2ece95c9e8c64295d0c0841b7423cc2d470a7a7
font_02_sfnt_off00012eb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EB3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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