Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ebaddfd73f51db1…

MALICIOUS

PDF

59.5 KB Created: 2021-09-02 21:05:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: aefcbcdeb9b0d46e76c51fd5ce432761 SHA-1: a3bdbc160c301a3bee8c09772b260e9057539a0d SHA-256: 4ebaddfd73f51db1726aa72d35bc907e4aaefe86718da9012511bee526d9a29c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains a link farm pointing to multiple compromised WordPress sites, likely serving as a distribution point for malicious content. The presence of external URIs and the nature of the heuristics suggest this document is part of a phishing campaign, potentially using embedded scripts to facilitate further malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7265

Heuristics 5

  • 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
  • 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.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cf2165572c---64822218563.pdf In PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/o4ickvkv6psdf9q2ccpnt63o85/29114907657.pdfIn PDF document text
    • http://aftckwt.com/uploads/file/66604082322.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a3663e872ba---liferobunefo.pdfIn PDF document text
    • https://farmaciasacoor.com/site/upload/file/88060769391.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160c30d1dd4b17---lidademerugupatutijebuve.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/49c8bd69c540b8a48ea77e59daa8a551/toxepisidivejobufegesudi.pdfIn PDF document text
    • http://agavietnam.com/img/files/27559128915.pdfIn PDF document text
    • http://www.barbazan-debat.fr/ckfinder/userfiles/files/sodudumibimixufokifunujab.pdfIn PDF document text
    • http://jewfri.kr/files/image/files/69311204008.pdfIn PDF document text
    • http://proreferee.ru/uploads/ckfinder/files/42899575958.pdfIn PDF document text
    • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072c97ea6b85---fobedi.pdfIn PDF document text
    • http://bigyikesmedia.com/home/xtremweb/public_html/consultinstitute/web/upload/files/64903283800.pdfIn PDF document text
    • https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/dsqlif0834rv163783hc9d1ftg/dimoleloxoxeresarawelib.pdfIn PDF document text
    • https://samsungvrvklima.com/upload/ckfinder/files/tevukizomebapezu.pdfIn PDF document text
    • http://ever0036.com/assets/uploads/ckedit/files/20210728174136.pdfIn PDF document text
    • http://szentistvanpatika.hu/upload/file/27035926000.pdfIn PDF document text
    • http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16128cb5e2a3c6---wowudamaji.pdfIn PDF document text
    • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/d5098279d95fa3974a44fdb05cfb4106/43073679344.pdfIn PDF document text
    • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a37b0085d7e---tamemozoxuz.pdfIn PDF document text
    • http://bitite.lv/media/txt/122/file/59097765121.pdfIn PDF document text
    • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/16100dd6414edd---97384711371.pdfIn PDF document text
    • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc13137453---zuvefusewopawujug.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=definisi+limbah+b3+pdfPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3F4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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