PDF malware analysis — malicious · 855e6db0869ba5b7

MALICIOUS

PDF

84.6 KB Created: 2020-11-12 21:33:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bcbdf7b99e0dec11720790ddc557877b SHA-1: 11a75f16e33909cd18de8369d8527f1900e19d50 SHA-256: 855e6db0869ba5b7c23e0da5d936dfc3f80c562927c4a17d7880031505595053

212 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with at least one pointing to known malicious redirector infrastructure. The ClamAV detection and ML classifier further indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest it is designed to redirect users to malicious sites, likely as part of a phishing or malware distribution campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.8810

Heuristics 4

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
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://traffmen.ru/aws?utm_term=importance+of+studying+biogeography+pdf
- https://vovejurumek.weebly.com/uploads/1/3/4/6/134644047/1502376.pdf
- https://romemigevowuf.weebly.com/uploads/1/3/4/3/134335991/39886685aea.pdf
- https://lupigufenof.weebly.com/uploads/1/3/4/5/134509144/febaji.pdf
- https://s3.amazonaws.com/nagev/dapabomofalidajobo.pdf
- https://uploads.strikinglycdn.com/files/538a805e-f026-4b75-b548-ce0a07ccbffc/36893671342.pdf
- https://s3.amazonaws.com/pewibim/auditorium_design_case_study.pdf
- https://s3.amazonaws.com/wikurixobelu/the_adventures_of_tom_sawyer_questions.pdf
- https://uploads.strikinglycdn.com/files/7a4cff9c-bcf5-4342-970d-b19f7e3d9f27/dr_khader_books_in_telugu.pdf
- https://s3.amazonaws.com/mafavuzenoliki/gamestop_website_games.pdf
- https://uploads.strikinglycdn.com/files/171c74a1-ed45-4c74-a3a0-0d484c4b9714/23726681759.pdf
- https://uploads.strikinglycdn.com/files/9943d03f-6000-42e1-9dfc-ef60e04cf549/mujiliwete.pdf
- https://uploads.strikinglycdn.com/files/1a9c2355-e262-405a-bac2-b73dd0e9d1aa/kilozazedinatijo.pdf
- https://uploads.strikinglycdn.com/files/315e3e71-9b14-4ee8-9774-8cf9819c23eb/tcp_ip_illustrated_volume_3_2nd_edition.pdf

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