Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e0acc843a67b0a6…

MALICIOUS

PDF

91.5 KB Created: 2021-07-05 09:58:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-20
MD5: 249054a4b40b525795ef1180f2d42e6c SHA-1: 591737b3a4f315f601164665c83b6ed78860d57a SHA-256: 3e0acc843a67b0a65556bb32170ef48925aac2d4f3207a6204d4e14789424b9d
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one pointing to a raw IP address, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a common technique of luring users to download further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://perfekttorun.pl/pliki/sexibiramarotabap.pdf In PDF document text
    • http://summitremodelinginc.com/userfiles/files/binek.pdfIn PDF document text
    • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/53aad073ebecff6d3e3f22be61620923/xirudegina.pdfIn PDF document text
    • http://orourkelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jurirekabir.pdfIn PDF document text
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160842fc13e3c8---6602903780.pdfPDF link annotation
    • http://2440027.ru/upload/file/4312098766.pdfIn PDF document text
    • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078c04980f92---22146706948.pdfIn PDF document text
    • http://hillcountryawningsandsunscreens.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080370e76d3c---tizutotolaxolepixamute.pdfIn PDF document text
    • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/8d7955216c2136726579a2a7d5d9d091/28330195989.pdfIn PDF document text
    • https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/fdr6e9fisusolk4fnropfdl87b/kafitenerifev.pdfIn PDF document text
    • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/prc89gq4o6673gnk3bjinlh3nf/numofidofizigomup.pdfIn PDF document text
    • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/f686249197d59815f1727e74dd1b7821/90519577493.pdfIn PDF document text
    • http://aqbnb.com/uploadfile/file/88314616055.pdfIn PDF document text
    • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a7c52ece8ee---womuladodujefinujasubusol.pdfIn PDF document text
    • https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/a61e53c9626e2d11de1f5039a4b770ca/40244749005.pdfIn PDF document text
    • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/3b01437e11607dd6d6d2cec4b2ead9b3/97684416116.pdfIn PDF document text
    • http://www.bufolari.com/public/immagini/file/14166290783.pdfIn PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/390qdivjh4qfsrveo7nqh4bg82/fovigesenerelanixo.pdfIn PDF document text
    • https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/acbd2eaff7d1248eeb74a3bf33702efa/kupomosarumupozabi.pdfIn PDF document text
    • http://assistance.uz/images/shared/file/80757143434.pdfIn PDF document text
    • https://freebcard.com/ckfinder/userfiles/files/bidolivadisozoluxafowirex.pdfIn PDF document text
    • https://balaji-technology.com/userfiles/file/tuzazitebimosumewivalekex.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=grade+9+science+textbook+free+downloadPDF link annotation
    • https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/fa9378a0516a9b23936a16062d16b3ac/70915333113.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://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_off0000ff34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF34 11096 bytes
SHA-256: 7882b1d9f4faa4a477b07bff79096b9bc64075ca165b954ea13e59f98110ef04
font_01_sfnt_off00011944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11944 17868 bytes
SHA-256: 85f580c92b763a9b9f82d656cbcfe8ef563e3914389995f86a1d630a4159fe76
font_02_sfnt_off000148af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x148AF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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