PDF malware analysis — malicious · ac1255ebac2997db

MALICIOUS

PDF

79.5 KB Created: 2021-09-22 10:45:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16

MD5: 57133a1e075659a31d1422548e43bcb7 SHA-1: b6ea670f3e516300f7164b24d11389263945c03d SHA-256: ac1255ebac2997db1fa0e16cf04a06d8144f6e369b909bcb3bbaff3fb7f0f03d

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which are structured as link farms pointing to other PDF files, suggesting a phishing or redirection scheme. Heuristics indicate it's a link farm on disposable hosting, and ClamAV detection confirms it as a phishing trojan. The presence of external URIs and embedded URLs strongly suggests the intent is to direct the user to malicious websites.

Machine Learning

Nyx PDF Classifier malicious score 0.5563

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://archism.ru/uplcv?utm_term=watch+two+weeks+to+live+online+free PDF link annotation
- https://aznamaste.com/ckfinder/userfiles/files/debefudijezawisetovejuki.pdfIn PDF document text
- https://egokituz.org/files/galeria/files/98130924815.pdfIn PDF document text
- http://naturalmis.com/userfiles/file/pijex.pdfIn PDF document text
- https://dom4m.by/userfiles/files/bufosogelibaxuj.pdfIn PDF document text
- https://8cj2aja7-8mxb.com/contents/files/rapegowalegekilomejeru.pdfIn PDF document text
- http://ikra-ekb.ru/files/fckeditor/file/balotavujirafafuzikifat.pdfIn PDF document text
- http://toitureetfacade.fr/data/Files/nulovolijuta.pdfIn PDF document text
- https://nepaltrekkinginhimalaya.com/assets/userfiles/files/62428175652.pdfIn PDF document text
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/60a3312f80189bd5e115599a491b4be7/15183082753.pdfIn PDF document text
- http://engroupe.ca/aym_image/files/1581985312.pdfIn PDF document text
- https://drgcode.managenet.ro/images/file/81143555483.pdfIn PDF document text
- https://tainandentist.com/uploads/files/202109082015428933.pdfIn PDF document text
- http://jualumnitoronto.com/editor/uploadfiles/50992467180.pdfIn PDF document text
- http://patrick-vallot.com/upload/files/24620767735.pdfIn PDF document text
- https://aptitudeclass.com/ckfinder/userfiles/files/suzekabigerorikowi.pdfIn PDF document text
- https://miaousland.fr/ckfinder/userfiles/files/81157208287.pdfIn PDF document text
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/2uuaqii22fkc8vhgvi78c310mg/zabusiga.pdfIn PDF document text
- http://uzmansporzeminkaplama.com/resimler/files/80537088609.pdfIn PDF document text
- http://cyuanmei.com/userfiles/file/94826522534.pdfIn PDF document text
- https://protrialse.eu/files/files/1375552273.pdfIn PDF document text
- http://baoveantam.org/upload/files/fexejoxuxevobep.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_off0000ed1c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED1C	18260 bytes
SHA-256: `5d536669074c1692cbaf560edf7e82f2a8e6cf3623f5b2c1aebea203febc37af`
`font_01_sfnt_off00011ca6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11CA6	10672 bytes
SHA-256: `4755d85eb0f9457fb2cdf3767fc8c0fbba0b9ab7e5f60a96bc5e1b615b95d884`

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