Malicious PDF — malware analysis report

Static analysis result for SHA-256 e96e56c102e04d2f…

MALICIOUS

PDF

80.5 KB Created: 2021-08-23 11:26:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: e03571b5268d0e8799e1075c58eddf6c SHA-1: 8d2c078eb5699a0706da998c397832c15d09ecee SHA-256: e96e56c102e04d2f484bb0d06ef3d2378dc2235fc2bb9c15d2d5630501715e14
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a link farm, with numerous embedded URLs pointing to various domains, many of which are hosted on disposable or compromised infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were directly extracted, the PDF structure and embedded links suggest it's designed to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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 https://ville-saintleonard.fr/pdf/63858725216.pdf In PDF document text
    • http://jmdfhjl.com/fckeditor/userimages/file/31651886976.pdfIn PDF document text
    • http://agavietnam.com/img/files/54037460277.pdfIn PDF document text
    • http://lamachine.nl/userfiles/file/fudapalewafukakibiku.pdfIn PDF document text
    • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/jto2ha1svo7eq3bc0t247cdvp1/68322494688.pdfIn PDF document text
    • http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/58084455074.pdfIn PDF document text
    • http://dansungsala.com/uploads/files/rexexalatawidawamazij.pdfIn PDF document text
    • http://caryhigh1987.com/clients/41333/File/98574239990.pdfIn PDF document text
    • http://thunderstar.cn/userfiles/file/20210520044722765091732.pdfIn PDF document text
    • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb2e3c8cba---8770098970.pdfIn PDF document text
    • http://ahxxzx.com/userfiles/202107/file/77233737369.pdfIn PDF document text
    • https://webtechnocrats.com/upload/file/pazuzare.pdfIn PDF document text
    • http://sbstroy53.ru/img/files/zikikurodikaxije.pdfIn PDF document text
    • http://videofilm-tv.ru/content/File/31343698205.pdfIn PDF document text
    • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608eff5c013e6---lanuludojusunasi.pdfIn PDF document text
    • http://grodgolf.com/clients/f/fd/fd83fa7079552abb47853a85229f74c1/File/56590880020.pdfIn PDF document text
    • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/160f7943c44f49---17627199431.pdfIn PDF document text
    • http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/74010481893.pdfIn PDF document text
    • https://fcksa.com/ckfinder/userfiles/files/89321193542.pdfIn PDF document text
    • https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/edf471959ab40993e71554b5949beee0/96814184608.pdfIn PDF document text
    • http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/88cfc53659f21a2555c9b31e370e45f6/galipizidasopipukike.pdfIn PDF document text
    • http://rajeshjshahani.com/clients/d/de/defaee86e9f1fedea086b53a5072ac2c/File/8568700881.pdfIn PDF document text
    • https://intrigantka.ru/images/userfiles/file/wamege.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=pruning+lilly+pillyPDF 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_off0000dc11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC11 9960 bytes
SHA-256: 8959e21ce293409ba1023cf3d2bf00ee595d60d53f93af99483114b3b2925e91
font_01_sfnt_off0000f213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF213 16524 bytes
SHA-256: 53f426d16dcb3272f0f4f03c644fa0d24096e2584270b120e6a90d15fda8717b
font_02_sfnt_off00011d06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D06 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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