PDF malware analysis — malicious · a9b03993f90aad0b

MALICIOUS

PDF

18.6 KB Created: 2020-11-01 07:45:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 835ed8a45246172e5187de119c361660 SHA-1: f58f8c11cc9f503c4ba4e447eda6907fc993a69f SHA-256: a9b03993f90aad0b82b0b48754fd2e4306536eb081867da0a8af423d0bbab333

92 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://cctraff.ru/aws?keyword=apex+friendship+middle+school+greatschools'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the redirector link suggest an attempt to lure the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9960

Heuristics 2

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.
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=apex+friendship+middle+school+greatschools
- https://cdn-cms.f-static.net/uploads/4375705/normal_5f8a74e8ca01e.pdf
- https://cdn-cms.f-static.net/uploads/4393363/normal_5f9c271317e6b.pdf
- https://fokakumunimu.weebly.com/uploads/1/3/4/2/134266115/7656960.pdf
- https://tavumake.weebly.com/uploads/1/3/2/7/132740551/4ce065df.pdf
- https://s3.amazonaws.com/fekazudabo/voworedetipomepasewija.pdf
- https://s3.amazonaws.com/jupevuxirapi/nakidiguvefapelamub.pdf
- https://s3.amazonaws.com/zoromexemuzid/carcinoma_esophagus.pdf
- https://uploads.strikinglycdn.com/files/588b54e2-9bef-47c2-9146-933bf94f98f5/40850504764.pdf
- https://uploads.strikinglycdn.com/files/ace13497-2639-4814-857c-05fc7017c693/58749382415.pdf
- https://uploads.strikinglycdn.com/files/30f13344-6ce5-4be4-a90c-126e920a7b0c/diruwixomizuzexexagavom.pdf
- https://uploads.strikinglycdn.com/files/b4144fcf-49b7-4af7-b452-e1d5d120d0ce/55094666794.pdf
- https://uploads.strikinglycdn.com/files/3805c463-8fa1-4030-ad5c-f496ec53a630/40173443166.pdf

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