MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a large number of embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, suggesting a phishing or malware distribution campaign. The presence of multiple external URIs and link farms indicates an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://medvor.ru/uplcv?utm_term=olamide+new+song+2020
- https://fisheaglesafaris.net/pics/user/file/85877236205.pdf
- http://liavanhaeringen.nl/userfiles/files/biwepugakuregexudakeraz.pdf
- http://mariancozma.com/_user/file/puwuvogederigulutewekab.pdf
- https://groupburuemas1.com/contents/files/vawizidiwujuguvitapaxopom.pdf
- http://www.omt.ntou.edu.tw/ckfinder/userfiles/files/xefopebisesalajenon.pdf
- https://shreenatharcade.com/userfiles/file/towalomanogibiwavesijun.pdf
- http://cicm2015.mist.ac.bd/app/webroot/ckfinder/userfiles/files/58951241546.pdf
- https://ooobelkom.ru/ckfinder/userfiles/files/52851029210.pdf
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141396337bba---jisavanemikaminodaf.pdf
- http://hawaiisushi.iorderfoods.com/uploads/files/8433788662.pdf
- http://cheniou.handysociality.com/upload/files/zaziveliwofinek.pdf
- https://brtim.com/uploads/wysiwyg/files/sokapumitopolitafi.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/jfe8u2lbkg71h7ngldesuvtth6/27450004092.pdf
- https://granitabrasive.hu/editor_up/10060304694.pdf
- http://retrofotr.cz/files/file/jitavisoragijedob.pdf
- http://2013.letnifestiwal.pl/ckfinder/userfiles/files/76855607423.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16144b8fd34b68---60284432162.pdf
- https://garnizone.com/userfiles/file/60510194294.pdf
- http://jeyadhurgatemple.com/userfiles/file/42390259856.pdf
- https://groupburuemas2.com/contents/files/52986354940.pdf
- http://sea-cruise.ru/ckfinder/userfiles/files/80047366516.pdf
- http://svsteinfurth.de/radsportfiles/file/44693323770.pdf
- https://rugsdirect4u.com/uploadedfiles/file/93070002127.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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e5ac.bin06e0693d13b30e79f9d97f94d84df494167f7dbc259b2e71f94aa984c837d01e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5AC | 10748 bytes |
font_01_sfnt_off0000fe33.binb9dc12f3a3b669ca539a28446a7ecd8e22299ce9b6d1f549f5f9a8ac9a6f543e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE33 | 17200 bytes |
font_02_sfnt_off00012aa7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AA7 | 16792 bytes |
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