Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeeda24fda12c7da…

MALICIOUS

PDF

78.4 KB Created: 2021-08-30 20:21:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 9c7b0498e61e5f94fb21f44fcb7aa220 SHA-1: 1936a6d23c9f0cad8803f83530164403923b740e SHA-256: eeeda24fda12c7da0f947ca6ec5d1b62468ab58ec6a2f99191a4788337efafa3
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous external links, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious content. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to deliver a malicious payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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://crysiq.ru/uplcv?utm_term=how+to+convert+imovie+to+video PDF link annotation
    • https://travelstore.tn/userfiles/file/21685308843.pdfIn PDF document text
    • http://al-bandak.com/userfiles/file/49352442339.pdfIn PDF document text
    • http://taikenplan.jp/ckfinder/userfiles/files/kutuxuvivopimawegaripule.pdfIn PDF document text
    • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607416c9216fa---febuzotolanuwokiz.pdfIn PDF document text
    • http://hopkinshigh1988.com/clients/75739/File/64666819068.pdfIn PDF document text
    • https://b2cexpressdemo.com/userfiles/file/pirapanele.pdfIn PDF document text
    • http://sisparts.pl/zdjecia/fck/file/zotezepezixa.pdfIn PDF document text
    • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160914d3b6fd43---8364364853.pdfIn PDF document text
    • https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/b6bbb69c11e1e3050c1fd09aafa272d3/87295873718.pdfIn PDF document text
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160754cbe2d421---vibobolo.pdfIn PDF document text
    • http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16087d4c669350---mewojaduwejibikifojo.pdfIn PDF document text
    • http://africalegal.nl/userfiles/file/98900605543.pdfIn PDF document text
    • https://area34.info/wp-content/plugins/super-forms/uploads/php/files/avuo54nfji0mndf0vulf5gjjo2/fepitarutu.pdfIn PDF document text
    • http://bjeclinic.com/ckfinder/userfiles/files/wikok.pdfIn PDF document text
    • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609c3e83593fe---puwupexam.pdfIn PDF document text
    • http://skrabl.pl/www/rpbd/fck/file/31147914273.pdfIn PDF document text
    • https://sainaudit.mn/File/23971052073.pdfIn PDF document text
    • http://rajskiewakacje.pl/userfiles/file/99237867760.pdfIn PDF document text
    • https://www.nhabe.com.vn/ckfinder/userfiles/files/76939373022.pdfIn PDF document text
    • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16124a73feb84c---xidifesowagifid.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d98a549d2de---49260214435.pdfIn PDF document text
    • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/c28d0757d67087d995bb234afafaf7da/gojalufewudod.pdfIn PDF document text
    • 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_off0000d1e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1E2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e9f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F4 16708 bytes
SHA-256: acfec4e8a8e349989d849d792697d2a9d789da730504e94ab41d9f2f1101d394
font_02_sfnt_off000114fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114FC 10300 bytes
SHA-256: c52fe0c50bd39c4f78c43b77bc6f639dfea9befb4e2a27f8aa4d7247d795b987

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