Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a697f45de6a3eba…

MALICIOUS

PDF

120.8 KB Created: 2021-09-03 04:20:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: adfce9408c1ca0b5ea661963cbe57c21 SHA-1: fdea842610671fa71af185aa45f781ee424f5d91 SHA-256: 2a697f45de6a3eba4c955dd0550c642402ccb02e4eb996259c9a2260b8e3b41b
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a ML classifier and ClamAV, indicating a phishing or trojan distribution attempt. The document contains a link farm pointing to numerous URLs, many hosted on compromised CMS upload directories, suggesting an effort to obscure the true malicious destination. The presence of these links and the overall structure strongly indicate an attempt to direct users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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 http://museeducuir.org/upload/files/9941392716.pdf In PDF document text
    • https://samarthanamparisara.org/apadmin/uploads/userfiles/files/57743794695.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/7gib64v9q0caj7827699hgq4m5/labivuked.pdfIn PDF document text
    • http://hoteldazegliotorino.com/userfiles/files/8192168240.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090bb6f1d333---90875382991.pdfIn PDF document text
    • http://baobianhkhang.com/upload/files/10300477143.pdfIn PDF document text
    • http://www.rotudavid.com/ckfinder/userfiles/files/98918539383.pdfIn PDF document text
    • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbc5afa8129---paxedorulabuvulol.pdfIn PDF document text
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16090df1d0b2e4---jejelikuvis.pdfIn PDF document text
    • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/379e389b0ab328fedb4895c8fc4c66c9/fulixudazupizod.pdfIn PDF document text
    • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/238b8b6245421d5094ab355d022447fd/48044101983.pdfIn PDF document text
    • https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/c58472b4eba69fd9a793b2a4db67eafc/15767742617.pdfIn PDF document text
    • http://edu-family72.ru/content/images/uploads/file/powamutaliduputikorigakot.pdfIn PDF document text
    • http://asiadomainstore.com/userfiles/file/wokifokokesajoruzeburuji.pdfIn PDF document text
    • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/dl8drnfmt6tj0s3nl6biqop3r1/37661938681.pdfIn PDF document text
    • http://clairerolo.com/userfiles/file/92087694750.pdfIn PDF document text
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1607aa3bf98447---36829760749.pdfIn PDF document text
    • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbb77825c3---fanojelesolejewuvoxasorum.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160921946b0176---42501568805.pdfIn PDF document text
    • http://eshop-kocicinadeje.cz/files/file/zifusewomelog.pdfIn PDF document text
    • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073b0ebcb04d---dukawetodake.pdfIn PDF document text
    • http://lenosada.sk/editor_uploads/files/34695210732.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=grease+30th+anniversary+conductor+score+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_off00016fd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16FD3 11284 bytes
SHA-256: 5ba246ca281b83752f4b1ce7e6f28d60844d88584a0d10c0e45ab6fdee2e800b
font_01_sfnt_off00018a67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18A67 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001a279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A279 19412 bytes
SHA-256: 9a695cd4dbead476e44ad96d3dd1cd6d899e08f874c75f31ebaaefc92e32ef0f

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