PDF malware analysis — malicious · e117413e53d5edac

MALICIOUS

PDF

67.7 KB Created: 2021-04-17 16:44:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23

MD5: f0d07ebf33af2d632d5ca74f4b172d25 SHA-1: 2cb4bb8f80a55eb0d4f6df5e3250313d86d4911c SHA-256: e117413e53d5edaca7482a9c755bc97945574e304de374e6c8042b3bada86fe7

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.7388

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://extranet.blanchisserie-toulousaine-de-sante.com/sites/extranet.blanchisserie-toulousaine-de-sante.com/files/documents/justificatifs/ziseriwutekezarog.pdf In PDF document text
- https://www.natsihwa.org.au/sites/default/files/webform/81826716543.pdfIn PDF document text
- http://www.muttypawsacademy.com/sites/default/files/webform/vaccines/37570077738.pdfIn PDF document text
- http://www.muttypawsacademy.com/sites/default/files/webform/vaccines/30199048500.pdfIn PDF document text
- http://www.sumnercountyhospital.org/sites/default/files/webform/vetasitumuwogemukuruv.pdfIn PDF document text
- https://www.natsihwa.org.au/sites/default/files/webform/zolevijovexoneda.pdfIn PDF document text
- https://extranet.blanchisserie-toulousaine-de-sante.com/sites/extranet.blanchisserie-toulousaine-de-sante.com/files/documents/justificatifs/vinoku.pdfIn PDF document text
- http://spotlight-sites.com/sites/default/files/webform/4279473489.pdfIn PDF document text
- http://www.pbttphtk.gov.my/sites/default/files/webform/vojazasazobixupolaxi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=fresh+off+the+boat+cast+allisonPDF link annotation
- https://lib.asu.edu/system/files/webform/dilitopuwivane.pdfIn PDF document text
- https://campusrec.princeton.edu/system/files/webform/xapedejezorim.pdfIn PDF document text
- https://lib.asu.edu/system/files/webform/53252105934.pdfIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000de42.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDE42	4852 bytes
SHA-256: `31e7c28893df64a0fe7ce697b6a1ad8eaf56b98fc999bdaf6295736703e68dbc`
`font_01_sfnt_off0000eeb5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEEB5	10800 bytes
SHA-256: `73dd8ed36b0ca55a42ad86851b6a2b73cad4b2447651ae23dc832311623e708d`

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