MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. It contains numerous embedded URLs, with one prominent URL suggesting a lure related to textbook solutions. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports the malicious intent by identifying a link farm on disposable hosting, likely used to distribute malicious content or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://crophysi.ru/123?utm_term=mechanics+of+materials+beer+5th+edition+solutions
- https://cdn-cms.f-static.net/uploads/4381318/normal_5fe8129e7c2d9.pdf
- https://cdn-cms.f-static.net/uploads/4388407/normal_5fd64ef946f54.pdf
- https://cdn.sqhk.co/zusegekum/mhgheyF/adventure_capitalist_tips_ps4.pdf
- https://cdn.sqhk.co/nufesewepi/gfejhhd/pinballz_austin_vr.pdf
- http://tezuveripoxub.mypressonline.com/a_wifes_story_summary_by_bharati_mukherjee.pdf
- https://vekerarefatada.weebly.com/uploads/1/3/4/8/134868636/3507600.pdf
- https://netafipagugid.weebly.com/uploads/1/3/0/8/130814009/ea5870ee8.pdf
- https://tadonajates.weebly.com/uploads/1/3/4/3/134319020/rowomofamisoze.pdf
- https://cdn.sqhk.co/judixixelof/ieie1gi/tiger_shroff_song_2020_download.pdf
- https://static.s123-cdn-static.com/uploads/4378157/normal_5fe5b1c9b0c4f.pdf
- https://cdn.sqhk.co/zebenane/hcQz7np/tuzal.pdf
- http://ludirobus.getenjoyment.net/can_you_breed_dapple_dachshunds.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://kosezofejesuxef.atwebpages.com/70579324531.pdf
- http://xoxozuzupa.rf.gd/34262914009.pdf
- http://bitines.myartsonline.com/77921163280.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000da28.bin2158f49c86e38f4f36d5842e25c6f3a23f5515bd844ead240668fce3962feee0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA28 | 5528 bytes |
font_01_sfnt_off0000ecd7.bin4935575cdccf41aaf74a3c480eac1d5d3d2945deef59d7b90f86b45c58b72660 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECD7 | 11128 bytes |
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