PDF malware analysis — malicious · c7b32079de24414e

MALICIOUS

PDF

78.0 KB Created: 2021-08-30 21:36:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-22

MD5: 1153a86b4ef4a87eee99262080837cd6 SHA-1: 673807d8d0a95e4e9600562fdae1092d3c37a564 SHA-256: c7b32079de24414e1da170eb4823191b56815362fcd6cef18959c074886a627b

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links pointing to compromised websites, many of which appear to be WordPress installations using the 'formcraft' plugin for file uploads. The presence of these links suggests the document is intended to redirect users to malicious content, likely for phishing or to download further malware. No scripts were extracted, but the PDF structure and URL patterns are indicative of a malicious lure.

Machine Learning

Nyx PDF Classifier malicious score 0.5017

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 https://drafthe.ru/uplcv?utm_term=seven+collection+salema PDF link annotation
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b0415d14531---nemipabaxitorinidolix.pdfIn PDF document text
- https://fanaf.com/article_ressources/file/78732388771.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160e11211883a0---94521915467.pdfIn PDF document text
- http://leaguengn.com/userfiles/file///91842974003.pdfIn PDF document text
- http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/c136c39f469fc4158f2459b1e9044a61/nevegor.pdfIn PDF document text
- http://aquitaine.annuaire-regional.com/ckfinder/userfiles/files/jusivebudelubun.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc2fc5c3c5e---87798505798.pdfIn PDF document text
- http://2017.letnifestiwal.pl/ckfinder/userfiles/files/gixefizakufirutopixe.pdfIn PDF document text
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/73dda46e3652dc62bdd3eec0c0ef67a5/83185520748.pdfIn PDF document text
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c6c4b39e04---bexobamode.pdfIn PDF document text
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160e1c93e0a689---tojizunozagexumegep.pdfIn PDF document text
- http://kperrylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/desivexubijotipisajurel.pdfIn PDF document text
- http://hudsonohiohighschoolclassof1980.net/clients/7/7d/7d4b1ad73701457990394555a34ab01f/File/fimowobor.pdfIn PDF document text
- http://domplus.su/userfiles/files/misedavikixuvuwis.pdfIn PDF document text
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/52483b093ca13bca1ebb042c7589a25c/panoxuj.pdfIn PDF document text
- http://fecoil.com/userfiles/file/dujeju.pdfIn PDF document text
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/c6cb3c0276f762f8c4048155498299e0/bapadojezolatabopoluvare.pdfIn PDF document text
- http://aivieksteslaivas.lv/userfiles/file/gunesexesufokifegawegufod.pdfIn PDF document text
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/160750a0402a02---23119216334.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1610d27880e1de---37635620215.pdfIn PDF document text
- https://vildmarksjagt.dk/userfiles/file/49432948964.pdfIn PDF document text
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160871acaa5b2b---77622636250.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ed72.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED72	10432 bytes
SHA-256: `14aba57d1cf8396cdc5d24378dfd99790cee534818f312c6935eb734f81877d5`
`font_01_sfnt_off0001051a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1051A	19552 bytes
SHA-256: `2c8be403de436b476c12e348a4830bf6ab0dbc2082f4a97acfc801becfe00c69`

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