Malicious PDF — malware analysis report

Static analysis result for SHA-256 e694c701382ba4a5…

MALICIOUS

PDF

77.4 KB Created: 2021-09-21 14:28:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 9910ed0432afc9f431e88819e2750f7a SHA-1: adf59e9037bb55344a04616547755481222164ff SHA-256: e694c701382ba4a554a4cffa8d3f3925e2bdbeca7fcc31a0d0de6567850781ee
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites or disposable hosting. These links likely serve as a lure to redirect users to malicious content or download further payloads. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9963

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 https://garglob.ru/uplcv?utm_term=ppsspp+2020+file+download PDF link annotation
    • http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141a81d314fa---87213892541.pdfIn PDF document text
    • https://ferropula.hr/files/mewigiv.pdfIn PDF document text
    • http://cpk.by/ckfinder/userfiles/files/wurunorukifetobibomaxasi.pdfIn PDF document text
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/449aa15440d0acd26c9140178eac054c/74879441372.pdfIn PDF document text
    • https://fablab808.com/nbloom/fckuploads/file/99886919268.pdfIn PDF document text
    • https://www.cygnusdvlp.in/nitdurgapur/uploads/editorUploads/userfiles/files/41136513485.pdfIn PDF document text
    • http://napiarsaigh.com/images/1873914294.pdfIn PDF document text
    • https://receptabc.hu/images_banner/files/kolelujenowizav.pdfIn PDF document text
    • https://multimetrics.com/ckfinder/userfiles/files/86267529869.pdfIn PDF document text
    • http://nriloan.jctoursandtravels.in/files/pokujikapijozasijunu.pdfIn PDF document text
    • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/161392f54b536d---49568023101.pdfIn PDF document text
    • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/vuvatgphr669vltug07dfjcks7/xokikopewugorugewaj.pdfIn PDF document text
    • http://animationcoach.com/userfiles/file/95546827981.pdfIn PDF document text
    • https://www.pessin-location.fr/ckfinder/userfiles/files/53260787675.pdfIn PDF document text
    • http://factory-01.com/js/upload/files/faporezojesovipowu.pdfIn PDF document text
    • http://banghetretunhien.com/media/ftp/file/67294433554.pdfIn PDF document text
    • http://seoulmenu.com/uploads/files/zakunatibiluwo.pdfIn PDF document text
    • https://dp-engineers.com/admin/userfiles/file/89707419925.pdfIn PDF document text
    • http://panova-art.com/files/file/lexufakexawilezaxuri.pdfIn PDF document text
    • http://playoz.com/ckfinder/userfiles/files/92750040757.pdfIn PDF document text
    • http://ctm.it/userfiles/file/gituduboxorofuw.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b510b99322---79482183041.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_off0000cc32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC32 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e449.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE449 10624 bytes
SHA-256: 86d06719b53180350d29c8ad2123f2ef4166c3d78681cae042c8c8cc02503be6
font_02_sfnt_off0000fcc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC5 17216 bytes
SHA-256: 5c4fea674b0294cffe84403a7288f50c720cbbc3f366fa837bb078d4e7d93811

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