Malicious PDF — malware analysis report

Static analysis result for SHA-256 60a3b72e7e958e75…

MALICIOUS

PDF

90.9 KB Created: 2021-07-21 21:54:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-15
MD5: 2bc914da1dcf2c8d80e1481ce5c93797 SHA-1: 14ec2303e90dc569373c94fbb51f28b48aa91c30 SHA-256: 60a3b72e7e958e756c070211cd06848a7a91cdb7a04a54dad35f9af25548794a
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains a link farm with numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to lure users to malicious content. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or redirection campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/f37ef0d842fffdd2fec0540dab61fc38/75789934626.pdf In PDF document text
    • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/bbd92dc6a083edcf478b6caf2333fe35/gijifodak.pdfIn PDF document text
    • https://djennebeads.com/nbloom/fckuploads/file/dogituturipafukeruruleri.pdfIn PDF document text
    • https://www.aceitedeoliva.com/wp-content/plugins/super-forms/uploads/php/files/90323e924cee22f9b463fdf2089834f1/45167284223.pdfIn PDF document text
    • http://aodaibooking.com/FileData/ckfinder/files/20210714_A7E1C90E51CE40AE.pdfIn PDF document text
    • http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/db9ccd0d7db28b563b88efc74e7c5842/motopuxo.pdfIn PDF document text
    • http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607269ff130a8---xofejopubipexen.pdfIn PDF document text
    • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ab940521063---livojojifusijugutir.pdfIn PDF document text
    • http://club-integra.ru/userfiles/file/janopaxiwijewujugezanasu.pdfIn PDF document text
    • http://sme1970reunion.com/clients/7/78/786f1e38e9ed540b4a7d4f5dbcc09398/File/25102702861.pdfIn PDF document text
    • https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/0a90a1060ee8eaf1c288d94a776240af/81950390029.pdfIn PDF document text
    • http://farmaciafoglia.eu/userfiles/files/77185828329.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a248b4bc44---39892063542.pdfIn PDF document text
    • http://cungcapluonech.com/upload/files/tubukibix.pdfIn PDF document text
    • http://theeultimatenetworker.com/ckfinder/userfiles/files/poseripirategijeviza.pdfIn PDF document text
    • http://dzbnf.com/upload/file///35943715023.pdfIn PDF document text
    • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1608f35a37f30d---kezajipazegam.pdfIn PDF document text
    • http://abpaluso.com/upload/file/povinowajavafurewulafo.pdfIn PDF document text
    • https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609b1108dd9ea---kotoxelojoregepunelimu.pdfIn PDF document text
    • http://ingatlantv.tv/userfiles/files/78892602230.pdfIn PDF document text
    • https://newtech-utm.pl/userfiles/file/mafogurujulumonetara.pdfIn PDF document text
    • https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/mh83cf3lasb46pluff2bksc1lo/30827708377.pdfIn PDF document text
    • http://floral-design-lindgens.de/userfiles/file/siriponiraxugekegunajebep.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=main+religion+in+ancient+egyptPDF 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_off00010231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10231 10488 bytes
SHA-256: f61f2b213b931ba639884d71365bd63dc30e803c3fcb6ede6b2e73feaf1a9f54
font_01_sfnt_off00011a25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A25 16656 bytes
SHA-256: 3ac423a87dd63d0f32da9e7de92f048b976594cc16163e1eac993a2ac1838927
font_02_sfnt_off00014558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14558 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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