Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d2e6cb6db05b0eb…

MALICIOUS

PDF

87.3 KB Created: 2021-09-06 05:25:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: b3ce13168238248ae46cbe5e23032870 SHA-1: b6c85096d5484dcc466e0eed196a703d6773306c SHA-256: 0d2e6cb6db05b0eb7636854bb1eec274fc8eed8176b169da410491da36d8a4ca
156 Risk Score

Malware Insights

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

The PDF contains a large number of links, many of which point to compromised CMS upload storage. This suggests the document is designed to lure users to malicious websites, likely for phishing or to download further malware. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/c9727f4f81f9c8b7f26b6481adf0dba5/dibokivufojiniditip.pdf In PDF document text
    • http://25630638.kad.tw/kads/ckfinder/userfiles/files/buxenowakerakig.pdfIn PDF document text
    • http://mdbim.pl/ubezpiecz/obrazy/file/ratibakupatej.pdfIn PDF document text
    • http://escuelasfutbol8.com/docs/files/19665329119.pdfIn PDF document text
    • https://foxtailmag.net/wp-content/plugins/super-forms/uploads/php/files/394ab14ae5d6fb1e1a5117a0426821c3/82534987008.pdfIn PDF document text
    • https://indoshaolinkungfusociety.com/ckfinder/userfiles/files/84938943457.pdfIn PDF document text
    • http://tpokebar.com/uploads/files/38413296029.pdfIn PDF document text
    • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160e81c0d88c73---pazefavekamupox.pdfIn PDF document text
    • https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/2c573b6791a819babcc0277921fab8c4/91762807780.pdfIn PDF document text
    • http://motopujcovnateplice.cz/userfiles/file/24159870786.pdfIn PDF document text
    • http://chanakol.com/ckfinder/userfiles/files/95636897947.pdfIn PDF document text
    • https://rotterdampools.com/contents/files/tidixifov.pdfIn PDF document text
    • https://faguaflowers.com/images/admin/file/76667470950.pdfIn PDF document text
    • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a77e70b014e---noxurelofuwajuked.pdfIn PDF document text
    • http://godswaynehemiahmbc.com/clients/878002/File/durapuneba.pdfIn PDF document text
    • http://cristal-in.fr/userfiles/file/66495851026.pdfIn PDF document text
    • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073ee4747846---kodiliwumed.pdfIn PDF document text
    • http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/160f544f3b471d---rafesuzabab.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16071355542c37---dezosofogekerepiwuwujo.pdfIn PDF document text
    • http://zangerlelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/luwuvipigurizinap.pdfIn PDF document text
    • http://onnetsolution.in/userfiles/file/kebuwakive.pdfIn PDF document text
    • http://forter.vn/hinhanh/file/98855267514.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=what+is+social+media+strategy+pdfPDF 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_off0000ed45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED45 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001055c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1055C 11068 bytes
SHA-256: 3df93d8fbf60087bbee590073fcbb11ad6989f03bcb58b889cf38ae04f68be25
font_02_sfnt_off00011ef5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EF5 18508 bytes
SHA-256: 690f95b632bbb68b1106eeb98a6ea16e7d9170933597f0b92d4e615971370267

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