Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0e5ec5c107108fb…

MALICIOUS

PDF

215.1 KB Created: 2021-06-27 15:49:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: debe55bab2bb5b5010b290fb2d2b1aa7 SHA-1: 1fb978c8848c994f27b7316dd2982fff5e990861 SHA-256: e0e5ec5c107108fbb88b530e57952ca8929e5fca1b4954aa5cd2d098efce8221
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The presence of a link farm pointing to compromised WordPress upload directories suggests an attempt to host and distribute further malicious content. While no scripts were directly extracted, the PDF structure and embedded URLs indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9685

Heuristics 5

  • 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.
  • 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://daimarconstrucciones.com/images/admin/file/32366568851.pdf In PDF document text
    • http://kangs78.com/clients/66216/File/metizome.pdfIn PDF document text
    • http://starlightcelebrates.ca/clients/4/43/43e9139217482d7666ce300faf566241/File/71406734910.pdfIn PDF document text
    • http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/a649696b60710a69dcfffa025e243c5c/pekonenad.pdfIn PDF document text
    • http://www.aportecnica.com/imagenes/editor/file/jejupanesawura.pdfIn PDF document text
    • http://classicalgardenstatues.com/uplds/file/95385206333.pdfIn PDF document text
    • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096848a0562d---losofifegufej.pdfIn PDF document text
    • https://feltshoe.com/userfiles/file/wuvoxopusasikibenofafafim.pdfIn PDF document text
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1609220337ce57---33455302221.pdfIn PDF document text
    • http://reicar.dk/userfiles/file/dewidositinojoxuwerun.pdfIn PDF document text
    • https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a6b595d05d---1445400800.pdfIn PDF document text
    • http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160815cb19a10c---23773538869.pdfIn PDF document text
    • http://transsnabstroy.com/userfiles/file/gofinatamalusapon.pdfIn PDF document text
    • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/160992fd273639---74908974932.pdfIn PDF document text
    • https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/b4155607dee247c233104bc68ed454c1/31214531686.pdfIn PDF document text
    • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c084cfbf563---53158975135.pdfIn PDF document text
    • http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160835467624fc---gubaxi.pdfIn PDF document text
    • http://cphs1970.net/clients/877309/File/48823750976.pdfIn PDF document text
    • https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/qn8hkkckfv5pc9b2sqcrrha90u/xekulimute.pdfIn PDF document text
    • https://blugarden.eu/file/fawonilozobajali.pdfIn PDF document text
    • https://publicbridge.pl/userfiles/file/xadokufuwi.pdfIn PDF document text
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/07947312a137d8ffff479f9f48c4f4b1/vosituvitufikatubok.pdfIn PDF document text
    • https://x-software.cz/data/file/fepimezima.pdfIn PDF document text
    • https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/inrfvv7tlth45qb9mj8r932npu/17060361834.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e95bf99cc4---5011017658.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=stephen+hayes+covenant+churchPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002d9a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D9A3 10688 bytes
SHA-256: eabde886339041bf543c094a3bedf8f1b1493139530574a0f49e571043c57b5d
font_01_sfnt_off0002f229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F229 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00030a3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30A3A 16192 bytes
SHA-256: 97e3f73a58ccdd4784c9ae1678d9f90717e6b6d0c87c36bf93adb8865ef65ebd
font_03_sfnt_off00031fc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FC2 17560 bytes
SHA-256: 885ed7232d9cacd949f81194b1b48bf84628d89dbed0b11882e93914b48e5c2f

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