MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs, many of which are hosted on seemingly legitimate domains but are part of a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of external URIs and a link farm heuristic points to an attempt to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9742
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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://www.woonsocketri.org/system/temporary/webform/kebadewanizokodijixupid.pdf
- http://www.pacificsportfraservalley.com/sites/default/files/webform/zasadavatemomafupe.pdf
- https://www.mainephilanthropy.org/sites/default/files/30695142459.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=logitech+k800+manual
- https://www.healthdata.org/sites/default/files/resumes/fanonexujezurexuli.pdf
- https://printandmail.princeton.edu/system/files/webform/85064040694.pdf
- https://printandmail.princeton.edu/system/files/webform/zupedofijemurak.pdf
- https://minorsoncampus.princeton.edu/system/files/webform/vogifowisawab.pdf
- https://ec.europa.eu/eip/agriculture/sites/default/files/webform/27560642257.pdf
- https://gradfutures.princeton.edu/system/files/webform/xafuzekimizitigemuseli.pdf
- https://www.healthdata.org/sites/default/files/resumes/58023923203.pdf
- https://minorsoncampus.princeton.edu/system/files/webform/fujixedapilevunagujos.pdf
- https://printandmail.princeton.edu/system/files/webform/67925993666.pdf
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e083.bin31bcd163fab96641908e91bc643be331fb24250b35a6e0536e0d190afda284c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE083 | 5280 bytes |
font_01_sfnt_off0000f25d.bin6a09635c7a08f643ac7ce70d2d642bb0a5a60b34ae0a4fa996cbbda5a52110f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF25D | 10984 bytes |
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