Malicious PDF — malware analysis report

Static analysis result for SHA-256 336360111fe4f94b…

MALICIOUS

PDF

356.9 KB Created: 2021-06-30 04:17:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 52db5dfdfd1c3213050d946f8fe215d9 SHA-1: 6364f8b1b7fcacb0d0623fdd761ba2efb14d82a6 SHA-256: 336360111fe4f94b65e56e5259484699730364430b27b4584635f6e68dd4076c
166 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of an advance-fee scam lure. It contains multiple links to compromised WordPress upload directories, suggesting it is part of a campaign to distribute malicious documents. The document body is heavily obfuscated and unreadable, but the heuristics strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8483

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.
  • 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://nanumed.ro/uploads/files/soxanaremumipomit.pdf In PDF document text
    • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abb2f064137---93629468686.pdfIn PDF document text
    • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/3030c426ec2a50da5b7e6955fc289826/75094066061.pdfIn PDF document text
    • http://j1medical.com/uploaded/file/66727675398.pdfIn PDF document text
    • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1f10e677f---givetopimije.pdfIn PDF document text
    • http://aaaexpressac.com/userfiles/file/94776643808.pdfIn PDF document text
    • http://isvpro.com/custom/files/somezakiwikakubodo.pdfIn PDF document text
    • https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/d230bc5c3010a21ee224b76f81524dd5/28992615978.pdfIn PDF document text
    • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/535271213016e799493668b2f28caa62/xawuzuso.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e49c658802---rumelijid.pdfIn PDF document text
    • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a03333c5961---9177770402.pdfIn PDF document text
    • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a4bf46524---91597370495.pdfIn PDF document text
    • http://www.bordadoindustrial.com/ckfinder/userfiles/files/jagisewokanebakukizirekow.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/11b3bb5a196856d0eabe6e2a8d008f20/kesekololububuxojefoxikap.pdfIn PDF document text
    • https://xaydungdonggia.com/app/webroot/files/images/pages/files/zizuvaxakadokisajalaj.pdfIn PDF document text
    • https://drsaman.com/files/36904022493.pdfIn PDF document text
    • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160b8508c533c1---48058521630.pdfIn PDF document text
    • http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/17kqm22mgh5m6hotelj0m6nvk5/titipizudobenewef.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1606f58f2355ea---zopuxonus.pdfIn PDF document text
    • http://grupopiscis.com/upload/files/46218135895.pdfIn PDF document text
    • http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/da6f72fda8fa8d19d2af3397455f4020/96228066785.pdfIn PDF document text
    • http://pinzimoniofiumicino.eu/userfiles/files/29335883215.pdfIn PDF document text
    • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16070f8024f82b---64172907547.pdfIn PDF document text
    • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac057ad99ff---nusavozidepawedako.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=sentence+about+effectPDF 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_off00052539.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52539 10240 bytes
SHA-256: 27a69472499a33ddcc6f2060de515a43fdee5dc4ee33540846e2e97a9a30d99d
font_01_sfnt_off00053c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53C70 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00055482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55482 18840 bytes
SHA-256: f222f80a6188832fe18a5cabd9e413ea502216ecef16d61834529a6939eee8c6

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