PDF malware analysis — malicious · 3001db03211cd027

MALICIOUS

PDF

444.7 KB Created: 2021-09-07 10:29:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07

MD5: a31ff121fed42ac51c4920d5b9bc1b7a SHA-1: 15289a75549ca0cb0d2d16cbae9dc950c709854e SHA-256: 3001db03211cd0276379675c180bfa9378d7ce5affdc06df352ac0408299c340

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and exhibits characteristics of a phishing lure, as indicated by the PDF link farm pointing to compromised WordPress uploads. The embedded URLs, particularly those hosted on compromised sites, suggest an attempt to redirect the user to malicious content or download further payloads. No scripts were extracted, but the PDF structure and URL findings strongly suggest a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier suspicious score 0.4409

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.
External URI info PDF_URI

PDF contains an external URL action
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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://iphonerepairservice.nl/app/webroot/files/userfiles/files/ribisup.pdf In PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/1920ef047733977564cb6b7c9f145d6e/34894949288.pdfIn PDF document text
- http://gujaratbusinesspages.com/userfiles/file/lizotalepunu.pdfIn PDF document text
- http://vita24h.com/uploads/userfiles/file/jaturoxuzo.pdfIn PDF document text
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/809d05d2535546e2aadf514028c2cfeb/kivaxat.pdfIn PDF document text
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607e497724184---gobufi.pdfIn PDF document text
- https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/7aff7ffe9dd9721cfb16e585fc507c1c/digirifibo.pdfIn PDF document text
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1611694110c282---4672949012.pdfIn PDF document text
- https://mmszke.hu/files/file/81728279642.pdfIn PDF document text
- http://www.barbazan-debat.fr/ckfinder/userfiles/files/difupezoxog.pdfIn PDF document text
- http://riverhouse.at/pcms/content/file/jozep.pdfIn PDF document text
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/8dd0cc30fd61cad09d790c6f4152cc5f/75521037312.pdfIn PDF document text
- http://446888.top/userfiles/file/tupizuziminip.pdfIn PDF document text
- https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fb31e9d3fe2---gisegubojiruvuwujorunof.pdfIn PDF document text
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160a299ae44e81---41727651336.pdfIn PDF document text
- https://volandovia.it/public/fileeditor/file/notagolovimebi.pdfIn PDF document text
- http://bright-inter.com/file_media/file_image/file/78557041093.pdfIn PDF document text
- http://asorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/90782994123.pdfIn PDF document text
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611f6fe14c620---82452490446.pdfIn PDF document text
- http://insureavisitor.com/userfiles/file/11569359693.pdfIn PDF document text
- http://signauction.net/userfiles/file/nonire.pdfIn PDF document text
- http://pxmonastery.org/CKEdit/upload/files/16203450847.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160d8bedcec8cb---javikadov.pdfIn PDF document text
- http://hillcrestneighborhoods.com/userimages/74089175602.pdfIn PDF document text
- https://rubfila.in/files/file/wolekakadib.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=avaya+conference+phone+b179+manualPDF link annotation
- 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.

Filename	Kind	Source	Size
`font_00_sfnt_off00068a67.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68A67	11056 bytes
SHA-256: `7ac213d0e78945b02a4e20c77a440742ff8c525eda88aa5d0241a2c972a837c5`
`font_01_sfnt_off0006a3e8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A3E8	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off0006bbfa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6BBFA	21192 bytes
SHA-256: `945871b430fff3f62e3c6f6bc44d3dd0e99d59c058996efdf194c7f5a83a1c44`

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