MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to potentially compromised websites or disposable hosting, suggesting a phishing or malware distribution scheme. The presence of external URIs and link farms strongly supports the classification as a malicious PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9923
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://coretry.ru/uplcv?utm_term=batman+arkham+city+lockdown+apk+data+revdl
- https://www.avantagesapp.com/uploads/files/72119378956.pdf
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c68f6c3990f---4086964464.pdf
- https://thietbivesinhanhhuy.com/asset/files/baradigi.pdf
- http://uniradioweb.info/userfiles/files/kewubapakenebifizomeribu.pdf
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ddd65ae28e2---dozevineki.pdf
- https://coherence.cz/userfiles/file/23258490669.pdf
- http://yossy.biz/userfiles/file/dofodutupugaxuwijojoxip.pdf
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b999f16ed0b---monasewodaradodebixol.pdf
- http://peaceinsrilanka.lk/userfiles/file/67607114162.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/pbdm2i2gebn787btf6cucl7hka/fevadudakagalogozodowuxif.pdf
- http://aelma.com/sites/default/userfiles/file/46139412156.pdf
- http://klpa.net/userData/board/file/raxodorapedumadiwusafa.pdf
- http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094410a7fe8a---kubeturexuxajilebolekak.pdf
- https://topaldanang.vn/uploads/image/files/15501155675.pdf
- http://galgalesh.com/userfiles/file/zalekazunusolo.pdf
- http://darstin.com/userfiles/files/vukigubabebokevib.pdf
- http://newcastlehigh1967-50threunion.com/clients/43248/File/58296186525.pdf
- http://carzip.biz/files/uploads/files/jafizijevelomat.pdf
- http://divorce-difficile.fr/userfiles/file/24511025031.pdf
- https://viceda.com/userfiles/file/munemuvopofasiratugi.pdf
- http://poultech.net/d/files/fedofazobisolirawi.pdf
- https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/ed9fa1871fca4655ecb6a33d95b9f6a5/90074731426.pdf
- http://bukvoznaika.ru/ckfinder/userfiles/files/fanemazetixozimasotelufo.pdf
- https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ea5a6ac070---takuzavibedunezukit.pdf
- https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/a4b5ba913d1cb5a996a9518819eb4c36/kinudivunuxu.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_003_off0000e63b.bind3091945cc80f1466ccacb03cae33eabf7bb5c1874736c8cde7edf1773a22f89 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xE63B | 19908 bytes |
font_01_sfnt_off0001077e.binbcc24097af2b048876047dd4c25db8585abc60f4826ba87421f222944f0e4a5a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1077E | 11024 bytes |
font_02_sfnt_off000120ff.bin48faa3146a0bea4f86635b0b4edac3080d9b7800bcb60cd7f37dd07290dafa9c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120FF | 19876 bytes |
font_03_sfnt_off00015024.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15024 | 16792 bytes |
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