PDF malware analysis — malicious · 423809d7aadee5ce

MALICIOUS

PDF

1.09 MB Created: 2021-08-07 02:21:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-25

MD5: 3928e6f3b343269f3f46b6ef74a06a85 SHA-1: 8d4eb992d87c6fb7b4869bdb18c0a88b84741f8b SHA-256: 423809d7aadee5ce25f7f53ca17b72310eaa7474dd05b1e513ec3915ba5a5d94

136 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file is detected as a phishing trojan by ClamAV and exhibits characteristics of a password-protected archive lure, a common tactic to bypass gateway scanning. Multiple URLs point to compromised CMS upload storage, suggesting a distribution mechanism. No scripts were extracted, but the PDF structure and embedded URLs indicate a phishing attempt.

Machine Learning

Nyx PDF Classifier suspicious score 0.3714

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
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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 https://allytemp.ru/uplcv?utm_term=sapataria+carocha+catalogo+de+cuentas PDF link annotation
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/iremscvggvvnvgd28s29icpuij/92188655272.pdfIn PDF document text
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607c29d372e16---vuxuwogotipiramurute.pdfIn PDF document text
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e8f79c1da---vabozazazovefopowo.pdfIn PDF document text
- http://wwstationery.com/files/file/marezasiweteza.pdfIn PDF document text
- http://hargrovefamilyreunions.com/clients/16272/File/44356043992.pdfIn PDF document text
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/lsl8no271283opg1ve7lecm65e/53269072834.pdfIn PDF document text
- http://firstcuwire.com/file_media/file_image/file/norataxofonu.pdfIn PDF document text
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/53343b384ac66d37a1c1a61cf822690b/labizejasadebutajudo.pdfIn PDF document text
- http://growlink.biz/userfiles/file/37950017469.pdfIn PDF document text
- https://pensionatiitalianiinportogallo.it/wp-content/plugins/super-forms/uploads/php/files/91b63300c3f5618cbea031b2c1588512/72204241120.pdfIn PDF document text
- http://www.verneteco.com/ckfinder/userfiles/files/wetagodudenok.pdfIn PDF document text
- http://dakmet.pl/upload/3933565108.pdfIn PDF document text
- https://nmg.lv/img/uploads/files/morixanusaf.pdfIn PDF document text
- http://www.octopus-quatuorvocal.com/ckfinder/userfiles/files/632729080.pdfIn PDF document text
- http://bethtikvahevents.ca/clients/2/20/20a91c0cb94b02964b0d1c5d980f1596/File/zopemed.pdfIn PDF document text
- http://pechati-piter.ru/userfiles/file/tunoda.pdfIn PDF document text
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c425178c7cf---kagupuwiraniwabububuro.pdfIn PDF document text
- http://www.maderas-navarro.com/ckfinder/userfiles/files/85888923772.pdfIn PDF document text
- https://vientangluc.com/upload/files/8655420589.pdfIn PDF document text
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/0042948116eb48d57550a3d374f384ea/62353270671.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f9ee506b5fa---1627660930.pdfIn PDF document text
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/914b4a92016bc3c7ac9ce4c16292b4f4/maduzinelikoxejegusog.pdfIn PDF document text
- http://sieuthihatgiong.vn/webroot/img/files/28832704105.pdfIn PDF document text
- http://manajrgvaaradhi.com/cms-uploads/files/56393914056.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0010e6f4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10E6F4	21008 bytes
SHA-256: `3affc91cbfa30c9442c5615a66001880f4abc0c64b6d768671c141c17585a77e`
`font_01_sfnt_off00111672.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x111672	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00112e95.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x112E95	10968 bytes
SHA-256: `da7351112e6d23d609c21de419bf6cecf8e4801ca884820fab1085481926b315`

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