Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eea2d89cf9666c4…

MALICIOUS

PDF

88.7 KB Created: 2021-07-16 19:51:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 420a47c2cac1b4549933549a8c244202 SHA-1: 2ef51a15d865c5af6eedd73218be8101a9ca5b09 SHA-256: 0eea2d89cf9666c40f54d1ba2a511c39cae3b37498bb8fdd77d7245a9ca08ca0
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs that point to compromised WordPress sites and other hosting services, likely to distribute further malware or phishing content. The presence of multiple distinct hosts and the structure of the links suggest a coordinated effort to host malicious files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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 https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a45776aeae2---19761130915.pdf In PDF document text
    • http://montaze.org/democms/userfiles/file/jarel.pdfIn PDF document text
    • https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/1a75268a85eacc6811d2f84736e9d80d/kalefiw.pdfIn PDF document text
    • http://nowyhotelik.pl/userfiles/file/xakemusif.pdfIn PDF document text
    • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/f3c56f24c8044872c237cf28f6c33619/15771282160.pdfIn PDF document text
    • http://qytbearing.com/upfile/file/43332398350.pdfIn PDF document text
    • http://deurenhanger.nl/userfiles/file/54537902650.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/eb7ec40dc1839d5a25854d094b75bb35/nebelefitesafajo.pdfIn PDF document text
    • http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160c100b9b2aad---serirusovi.pdfIn PDF document text
    • http://bong-dem-long.org/upload/editor/files/zudokuvumomagen.pdfIn PDF document text
    • http://eia-edu.com/userfiles/file/fawalobiv.pdfIn PDF document text
    • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/3a562b8ddb7aefb540f8bb850c9d1228/dorewegewa.pdfIn PDF document text
    • https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/eb7eaf7ac00bf9acab5d8a2a7b94b7cf/67245950998.pdfIn PDF document text
    • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a87c51b062c---tosariguralijoviwanegir.pdfIn PDF document text
    • https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/l1rlv0mp65v4nb57qj5g9q6cr3/6766367605.pdfIn PDF document text
    • https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/ofrrqqconnl65iqr71nit61sp2/gegagifup.pdfIn PDF document text
    • http://hyunbulsa.org/~ewedd2/userfiles/file/gizewatarawe.pdfIn PDF document text
    • https://betenrealestate.com/sites/default/files/file/migiwejabon.pdfIn PDF document text
    • https://xn--arbeitskndigungsrecht-best-5zc.de/userfiles/file/32223380365.pdfIn PDF document text
    • http://vodnik48.ru/content/file/fexiru.pdfIn PDF document text
    • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/6bfaa5b43052632ea6d22b3c88c15ee4/nutarozonagosurifi.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8821cc62c---gopiridepiboxoxijab.pdfIn PDF document text
    • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eef1ecec55---pimewedijusazajobiw.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=irish+female+saints+names+for+confirmationPDF 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_off0000f840.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF840 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011057.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11057 10552 bytes
SHA-256: f86bfe7e43f4ca8b5d289dd22c983c52dbe3b4298ef07975dea8cbbe8e1d8252
font_02_sfnt_off00012833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12833 17564 bytes
SHA-256: 198240a0c135bc029574a3a69fe8bdb8bfeb90008064697e1214b650918420e9

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