PDF malware analysis — malicious · 4d80b2880f34cf5b

MALICIOUS

PDF

110.4 KB Created: 2020-11-09 05:04:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a42d52bb623b275c6d752b37fca0730d SHA-1: db944f088bdcd6b83e1874fe91c10c469004a0bb SHA-256: 4d80b2880f34cf5b016f1cfd3ab9b0167c28608d274d7561463a93b50ef77562

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains a mass of external links, many of which point to redirector infrastructure. The primary malicious URL identified is https://cctraff.ru/aws?keyword=keowee+elementary+school+facebook, which is flagged as a known malicious redirector. The document body appears to be obfuscated or corrupted, but the presence of numerous links suggests an attempt to drive traffic to potentially malicious sites, possibly for SEO manipulation or to host further malware. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 0.9948

Heuristics 3

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.
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://cctraff.ru/aws?keyword=keowee+elementary+school+facebook
- https://joluduloj.weebly.com/uploads/1/3/4/2/134266967/lijifevupelokox.pdf
- https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/sagexepad-zaxiruwej-gilata-kolita.pdf
- https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/5648329.pdf
- https://pupirod.files.wordpress.com/2020/11/sagob.pdf
- https://wakijixebe.files.wordpress.com/2020/11/50747471133.pdf
- https://uploads.strikinglycdn.com/files/87a537c0-1e92-4e5d-9c80-fd494d2cd7c9/9305952373.pdf
- https://s3.amazonaws.com/jeduzizonox/windows_8.1_professional_build_9600_key.pdf
- https://botebofeji.files.wordpress.com/2020/11/15963812645.pdf
- https://zetitomaguzo.files.wordpress.com/2020/11/gartner_magic_quadrant_endpoint_protection_2020.pdf
- https://sizixef.files.wordpress.com/2020/11/90261814298.pdf
- https://uploads.strikinglycdn.com/files/a076be15-6360-417e-82cd-3f676cc19fec/fotigodesabodib.pdf
- https://miloxujakube.files.wordpress.com/2020/11/dezuxigeloj.pdf
- https://s3.amazonaws.com/mejawiwomak/aislantes_y_conductores.pdf
- https://s3.amazonaws.com/gafedupeba/fasijolif.pdf
- https://s3.amazonaws.com/dojonuta/call_of_duty_black_ops_2_zombies_buried_guide.pdf

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