PDF malware analysis — malicious · 60add78832d140af

MALICIOUS

PDF

100.6 KB Created: 2021-03-20 22:59:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 07f2fa6a1b8c6687c17aacb8d7b31954 SHA-1: 492abd6717e3a10286120902479f4c61cbca54c3 SHA-256: 60add78832d140af16be4e201a8f05a75c7f352eb300c9c1a43533565c9e1fac

184 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

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 0.9563

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
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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://xajibur.ru/aws?utm_term=molecular+biology+of+the+cell+watson+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4486965/normal_5fe9f08d2baaa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4419205/normal_603306eeb18ef.pdfIn PDF document text
- https://lalidusuferub.weebly.com/uploads/1/3/4/4/134440540/9100652.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4456376/normal_5ff40a154c241.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476952/normal_60381f2d06ceb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4486758/normal_5fcc4efd96081.pdfIn PDF document text
- https://ruwotepileta.weebly.com/uploads/1/3/4/4/134493455/bavugewudinivobuloge.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4494429/normal_60500f623157d.pdfIn PDF document text
- https://gonuxatokudegi.weebly.com/uploads/1/3/2/6/132695329/xowesivopav.pdfIn PDF document text
- https://desalova.weebly.com/uploads/1/3/0/8/130814935/pomakemogaxononilu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410222/normal_6018a2a8b2c37.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4374986/normal_6007e2ce4ad5c.pdfIn PDF document text
- http://posiximuteg.sportsontheweb.net/22606667182.pdfIn PDF document text
- https://lowaribopuvege.weebly.com/uploads/1/3/2/8/132814272/mipererogetilogita.pdfIn PDF document text
- https://nirasiban.weebly.com/uploads/1/3/4/3/134344158/5153894.pdfIn PDF document text
- https://gariwadol.weebly.com/uploads/1/3/1/3/131380788/verisosarod.pdfIn PDF document text
- http://lonesopuw.onlinewebshop.net/haloalkanes_and_haloarenes_conversions.pdfIn PDF document text
- http://molujafit.atwebpages.com/46802380173.pdfIn PDF document text

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