Malicious PDF — malware analysis report

Static analysis result for SHA-256 002b10313f8618a8…

MALICIOUS

PDF

84.9 KB Created: 2021-08-01 23:46:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: c9d7a874a2d8c52c4e206414aeed1d28 SHA-1: 864644077f307751cc1b9795057d8f37639a4056 SHA-256: 002b10313f8618a8bd4c823c54c741b1771c4d71db3d37ad8bc6512e47ce68b6
156 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains a link farm pointing to multiple compromised CMS upload storage locations, suggesting an attempt to distribute malicious content or redirect users to phishing sites. The presence of a 'driver easy pro license key reddit' UTM term in one URL suggests a lure for pirated software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/5aa2f2e837346d257a7601c4e7d659b1/wosujodibaxivoletas.pdf In PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160826f9f6be6d---zadupimojobusogarojokip.pdfIn PDF document text
    • http://wahibluedevils76.com/clients/5/55/55d7338a7abcce318bc847d7f34994f5/File/vorebuladamodapuwog.pdfIn PDF document text
    • http://mevlanaasm.com/resimler/files/gutobupibawovekagerapid.pdfIn PDF document text
    • http://hagelkonzept.de/userfiles/file/88535274263.pdfIn PDF document text
    • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0a0bd5a47f---87255950431.pdfIn PDF document text
    • https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa98e17c892---52756764760.pdfIn PDF document text
    • http://futurepoolandspa.com/ckfinder/userfiles/files/gekosetowa.pdfIn PDF document text
    • http://china-hold.com/UploadFile/file/20210518134538463.pdfIn PDF document text
    • https://vietfun.com.vn/wp-content/plugins/super-forms/uploads/php/files/7q9ho2tfvlupqpjr7q04iajlpd/67848339586.pdfIn PDF document text
    • http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160cf7873ad662---29609566274.pdfIn PDF document text
    • http://3e-machinery.ru/app/webroot/filesfiles/pulutanabukosutanipil.pdfIn PDF document text
    • https://leganordavigliana.it/uploads/file/6524564537.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094d63f40bec---22252685811.pdfIn PDF document text
    • https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/g5ldhu2ap85pd4jvb4na6nv7de/begujet.pdfIn PDF document text
    • https://ficsllc.com/wp-content/plugins/super-forms/uploads/php/files/d36cdpnf6r15sgd6bl5sogbv82/40157975084.pdfIn PDF document text
    • http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/7csgv6drgmeqlrksh3ihobutgi/nuluwewobikimolad.pdfIn PDF document text
    • http://muzeumostrowiec.pl/obrazy/file/jexuxoximajaboma.pdfIn PDF document text
    • https://mmszke.hu/files/file/pumirovorobifat.pdfIn PDF document text
    • http://crisismobile.com/ckfinder/userfiles/files/55936224754.pdfIn PDF document text
    • https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/e5013d55fad711e86aa0f4fe8aba5f78/70002622068.pdfIn PDF document text
    • http://kimhoatra.com/upload/fckimagesfile/49554737824.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=driver+easy+pro+license+key+redditPDF 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_off0000e766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE766 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ff7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF7D 10780 bytes
SHA-256: 0eae95cb08b055cf2aab641ba3ead5c8d8c99db2dd56f5ee6c52d94e08d9f384
font_02_sfnt_off00011878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11878 17516 bytes
SHA-256: a637900017774f1067c03e6e4d40fae27ae69ec13fe18b0ecf036c2019577249

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