PDF malware analysis — malicious · 9728585ad13e9a02

MALICIOUS

PDF

50.6 KB Created: 2020-12-28 09:13:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c4c90696d1b652a1dd73ec2d977b8731 SHA-1: a48c9edd413f313dd31ecd8f271f0c4f56bbc4aa SHA-256: 9728585ad13e9a02f54c007294c91ba2159c9025062b49f77a089e89b42c81dd

232 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF is designed as a lure, presenting itself as educational material to entice users to click on embedded links. It contains a high number of links to external PDFs, many of which point to potentially malicious redirector infrastructure. The ClamAV detection and heuristic firings strongly indicate a phishing or trojan distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.6098

Heuristics 5

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE

PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 50 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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://ggtraff.ru/aws?utm_term=geometric+sequence+practice+pdf
- https://repafajekojila.weebly.com/uploads/1/3/4/3/134305679/febifunosogosej.pdf
- https://static.s123-cdn-static.com/uploads/4418566/normal_5fdd416db4d3e.pdf
- https://s3.amazonaws.com/jozaponi/vekoxakivupojuze.pdf
- https://s3.amazonaws.com/topipovikapari/turar.pdf
- https://s3.amazonaws.com/bufexa/astm_bolt_torque_chart.pdf
- https://s3.amazonaws.com/vufupu/88525750541.pdf
- https://uploads.strikinglycdn.com/files/12c726bc-d05b-4075-8d4b-8db21f859db0/subavebozifu.pdf
- https://s3.amazonaws.com/xipavir/caller_id_android_app.pdf
- https://uploads.strikinglycdn.com/files/213d366a-9905-46ba-9550-ade8a27362f9/83266310563.pdf
- https://s3.amazonaws.com/jirebonudur/tuxisi.pdf

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