MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the document functions as a link farm, directing users to numerous external URLs, many of which are hosted on compromised or disposable domains. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics strongly suggests a malicious intent to distribute malware or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 6
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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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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://mayxaydungthienlong.com/uploads/files/files/murugitug.pdf In PDF document text
- http://kxxbs.com/uploadfiles/file/a/wutel.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/161328a249a4bc---zugibobe.pdfIn PDF document text
- http://maroba-zirndorf.de/file/53618517747.pdfIn PDF document text
- http://phupmirpol.pl/userfiles/file/54916162104.pdfIn PDF document text
- http://friulanamarmi.it/images/file/pifolapivawutupebesas.pdfIn PDF document text
- http://freeware-software-download.de/uploads/editor/file/80317149176.pdfIn PDF document text
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/160dfb6d5c1a3b0feba2e5cfad35532d/kebiwanubakojo.pdfIn PDF document text
- https://thegioidongphuc.net/ckfinder/userfiles/files/jadisukazuxuj.pdfIn PDF document text
- http://revistaspontan.ro/assets/ckfinder/core/connector/php/uploads/files/29322524268.pdfIn PDF document text
- http://tecnoservizi.com/userfiles/files/dojibi.pdfIn PDF document text
- http://haithuanphat.com/uploads/files/penaxifolozax.pdfIn PDF document text
- http://www.wcd.com.tw/ezadmin/ckfinder/userfiles/files/tetuvaxavofegijowonereg.pdfIn PDF document text
- http://fioredda.com/userfiles/files/butonusisawuwawetozijepet.pdfIn PDF document text
- http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/sorapofazabapesesakepabol.pdfIn PDF document text
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/6392195f4e91ab7079227f71ff697754/dakesaxa.pdfIn PDF document text
- http://firstcuwire.com/file_media/file_image/file/26463772966.pdfIn PDF document text
- http://geomanteia.com/userfiles/files/35454002577.pdfIn PDF document text
- https://ytdrive.com/CKEdit/upload/files/zotivedi.pdfIn PDF document text
- http://canadianartistic.com/userfiles/file/27722852316.pdfIn PDF document text
- http://www.naraihillgolf.com/admin/userfiles/file/37085979750.pdfIn PDF document text
- https://jck.ro/userfiles/file/71799672053.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=complete+backup+androidPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e4ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4EE | 17692 bytes |
SHA-256: ac7a50b160361f2daaeffd065ee3e8e2de3202a96544cd38addbef562ed4c63d |
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font_01_sfnt_off00011315.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11315 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012b2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B2C | 10872 bytes |
SHA-256: 526478fb30336dedc2d42a105968cb6a748282e2935673830f78ffa303c5579c |
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