Malicious PDF — malware analysis report

Static analysis result for SHA-256 de0e6e2d01704eae…

MALICIOUS

PDF

79.8 KB Created: 2021-09-22 13:05:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 658dabbe3ba4b05d59ccdec16edfeb2b SHA-1: c4a491d44f3a7bab631e40ab69e282d8be7d025a SHA-256: de0e6e2d01704eaef1fecc736cccd8ba8f1c9375689cea3518bc4604403545af
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded JavaScript and multiple external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery. No specific document body content was readable, but the presence of a link farm and embedded JavaScript points to a malicious redirection or download attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://flixgolf.com/ckeditor/ckfinder/userfiles/files/10032110205.pdf In PDF document text
    • http://medicapoland.pl/uploaded/file/76717286776.pdfIn PDF document text
    • http://iccjsc.vn/images/uploads/files/36397195598.pdfIn PDF document text
    • https://adlinefor.com/home/webagen/public_html/korn/data/file/mizagijiwizet.pdfIn PDF document text
    • http://arcomproltd.com/userfiles/file/83615001762.pdfIn PDF document text
    • http://objets.immoweiss.lu/userfiles/files/sonisobekupenov.pdfIn PDF document text
    • http://dragoniresorts.com/userfiles/domiwisanog.pdfIn PDF document text
    • http://speckrepej.com/upload/file/21742179016.pdfIn PDF document text
    • https://sportsslife.net/upload/ckfinder/files/31651554646.pdfIn PDF document text
    • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/161493c369e54c---40327512382.pdfIn PDF document text
    • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16140e4ab9247e---vuzakovefovomumu.pdfIn PDF document text
    • http://topliving.sk/userfiles/file/logamegon.pdfIn PDF document text
    • http://aybar-gallery.com/userfiles/files/powexiwe.pdfIn PDF document text
    • http://mcenterdk.ru/fck_editor_files/files/fadexujomafodujisepo.pdfIn PDF document text
    • http://cosmikkino.ru/sadm_files/85947212473.pdfIn PDF document text
    • http://museodegliarazzimarsala.com/userfiles/files/maponolukogeme.pdfIn PDF document text
    • http://burningspearmarketplace.com/js/ckfinder/userfiles/files/fuzufanatasuwop.pdfIn PDF document text
    • https://yumasri.com/assets/ckfinder/userfiles/files/94888283345.pdfIn PDF document text
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1613c0dd49a069---44478764977.pdfIn PDF document text
    • https://sieuviet.net/webroot/img/files/44176677653.pdfIn PDF document text
    • http://khocabien.com/uploads/files/xajiwifijuruzuv.pdfIn PDF document text
    • http://vuoncotichdep.com/upload/files/66595604894.pdfIn PDF document text
    • http://susutour.com/userfile/file/fomutunuvukajik.pdfIn PDF document text
    • http://nickels.design/ckfinder/userfiles/files/10756248695.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=chhota+bheem+apk+downloadPDF 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_off0000d5a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000edb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB8 16936 bytes
SHA-256: 6cb8f812301b20213378f5ca175762664deb4ea9909c15e7dfcacd9ad64bed5e
font_02_sfnt_off000119de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119DE 10648 bytes
SHA-256: 79f24a6bf3c631f99fdc6d502fcb68b93933ebe87c3195572ef2088edd15b5db

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