PDF malware analysis — malicious · 68ca8fc03e00330b

MALICIOUS

PDF

67.6 KB Created: 2020-12-19 22:34:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a2e4245d243684d0f4f58487c9cc1c5a SHA-1: 96ba3a224a22a7679cf1729f4f9149d3fbfec9f4 SHA-256: 68ca8fc03e00330b8532afe134827992bdd3bf70c6b8b33c08efe23ed5999975

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which point to PDFs hosted on various platforms, suggesting a link farm or SEO poisoning tactic. One of the primary external links, 'https://traffset.ru/aws?utm_term=air+pollution+essay+pdf+file', is likely malicious. The ClamAV detection and ML classifier further support its malicious nature, indicating it's a phishing or trojanized PDF.

Machine Learning

Nyx PDF Classifier malicious score 0.5412

Heuristics 4

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://traffset.ru/aws?utm_term=air+pollution+essay+pdf+file
- https://cdn-cms.f-static.net/uploads/4478123/normal_5fa7ea00d72e1.pdf
- https://jajedasas.weebly.com/uploads/1/3/4/2/134234666/2396253.pdf
- https://xavixikani.weebly.com/uploads/1/3/4/5/134502132/7318809.pdf
- https://s3.amazonaws.com/jewizopukuni/belupabimanazafixewoban.pdf
- https://uploads.strikinglycdn.com/files/a3ea2abd-a9f4-4174-8d22-84e22d17741f/sisurodadekoxiga.pdf
- https://uploads.strikinglycdn.com/files/4ac2f892-625e-4126-9311-00b1fc94677f/2020_calendar_october_free_printable.pdf
- https://uploads.strikinglycdn.com/files/cbf8b7d2-cc63-4609-babc-f50ee15001c5/31397290139.pdf
- https://uploads.strikinglycdn.com/files/298687b8-1d60-494f-9408-d0e2cf7cb265/home_depot_core_competencies.pdf

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