PDF malware analysis — malicious · 26848708da6a0315

MALICIOUS

PDF

42.2 KB Created: 2020-12-28 20:49:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b09dc9ae39c8172cc42cd9fdf04b6edf SHA-1: 9973a1752323103b2f2a877efc2eda0f3086e1ae SHA-256: 26848708da6a0315ef8a7140e7c5cb043bb667549362532ceab690e0f8acbf59

144 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its small size, image-only content, and embedded action trigger. It contains multiple external URIs, including one pointing to 'trafffe.ru', suggesting a redirection to a malicious site. The ClamAV detection and ML classifier further support its malicious nature, indicating it's likely a trojan designed for phishing or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.6525

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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 42 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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://trafffe.ru/strik?utm_term=precious+metals+international%2528+singapore+pte+ltd
- https://sosegesidor.weebly.com/uploads/1/3/4/4/134465043/tufedijusu-zasawu.pdf
- https://gatixitawenubik.weebly.com/uploads/1/3/4/6/134643062/dabodomenusavu.pdf
- https://pidadilux.weebly.com/uploads/1/3/4/6/134666204/lafomu-fowesutom-dabikituduxun.pdf
- https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/40aae838.pdf
- https://static.s123-cdn-static.com/uploads/4367650/normal_5fc97ea2b3421.pdf
- https://cdn-cms.f-static.net/uploads/4427501/normal_5fb537fa7c204.pdf
- https://bonifivudinuf.weebly.com/uploads/1/3/4/3/134305406/nutigujiwabuk.pdf
- https://s3.amazonaws.com/dibedamoka/rojulokenasoripowi.pdf
- https://s3.amazonaws.com/metakibeme/blackberry_os_vs_android_security.pdf
- https://s3.amazonaws.com/kizugokofo/91008930492.pdf
- https://s3.amazonaws.com/gedexim/fegopevomejafokipinuruj.pdf
- https://s3.amazonaws.com/fobupojowojon/81282512079.pdf

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