MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links, many pointing to compromised WordPress sites hosting further PDF files, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via these linked resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 6
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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 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://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/cb34cdda076b657e5059e23bddcc860b/53163124335.pdf
- http://megat.pl/uploaded/fck_files/file/51778185576.pdf
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/ssmgv760231oe02nsov768ntmp/49919389770.pdf
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/ee5cb6c36fb8595ac4784d02d38609c5/zasubegemenozik.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0fd11b30bc---5121514192.pdf
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/cquf569dmu6aahuqipisbqn0gv/tiwewawonuxerokojavuxafe.pdf
- http://kppzp.pl/userfiles/file/nemowemuxeredajoluxivesaz.pdf
- http://yoron.net/up/files/17571791735.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607a403679407---numokotifa.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/5b516fb1317ff6e59aebc041c51d24e2/26102827316.pdf
- http://www.tokyomagic.jp/images/library/File/20043750343.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cf4fccf3ca---falonexo.pdf
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b1d54a1ed1---xogim.pdf
- http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/7163ddf394729595b207ac08d31db53c/43710806419.pdf
- http://loveperfectionschool.com/upload/file/gesatijamobedatiludog.pdf
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d68fbc0a186---wogotipasep.pdf
- http://stoewebdesign.no/userfiles/file/xewonavokojasopogunisid.pdf
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/7d4050031c9cbe8085e1cbebb9cc1e3c/43395578533.pdf
- http://almar-bus.pl/userfiles/file/76749782018.pdf
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8aae1f10ba---zumepufalurime.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b701ca0668---80234775040.pdf
- https://anakaygame.com/calisma2/files/uploads/76770678246.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=how+to+draw+elsa+crown
- 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_off0000da23.bin53f4a974cc3ddef344d0c9d5b25e0d94817417c631bba1ae650f8f6c944e3ae8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA23 | 10348 bytes |
font_01_sfnt_off0000f1a8.bin5208134a3f6a72ff4a2277eda8398d224c6b56930814c07883c7b1b57dbc9c42 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1A8 | 17596 bytes |
font_02_sfnt_off00011e0e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E0E | 16792 bytes |
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