MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS uploads and disposable hosting, suggesting a link farm or redirection mechanism. The presence of an IP address literal in a URI further supports a suspicious network interaction pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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 http://bulgankhangai.mn/userfiles/files/21584889559.pdf
- https://www.koreayokogawa.com/ckfinder/userfiles/files/41275553508.pdf
- https://xtremefitness.com.au/application/third_party/ckfinder/userfiles/files/gedijebenudekixaja.pdf
- http://eros-arena-reutlingen.de/eros/userfiles/file/lojedukejuxev.pdf
- http://acudrved.com/ckfinder/userfiles/files/53718960439.pdf
- http://househouse.it/userfiles/files/konewol.pdf
- https://hazeloyun.com/calisma2/files/uploads/baguwezikuradiwekel.pdf
- https://www.asoriofrio.org/ckfinder/userfiles/files/figamiwaxojisolerekumur.pdf
- http://ouhkpthaa.org/userfiles/84865889103.pdf
- https://essuances.com/ckfinder/userfiles/files/49354899745.pdf
- http://gelikonline.ru/content/Files/terexefowekug.pdf
- http://211.129.1.225/system/ckfinder/userfiles/files/79065627793.pdf
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/b05f72ae0b25fb08f92d86f7b1ce59ee/3280535252.pdf
- http://www.elmundodelapiscina.com/ckfinder/userfiles/files/71574480482.pdf
- https://www.frontiermea.com/sites/all/libraries/ckfinder/userfiles/files/dekezitejewikuw.pdf
- http://pro-group.ru/userfiles/files/62156094661.pdf
- http://captainkillmite.com/uploads/files/202109070151211788.pdf
- https://burragebrothers.com/demo/jolie/beta/userfiles/files/80735649128.pdf
- http://erfansari.ir/ckeditor/files/files/kuzin.pdf
- http://konberdbio.com/upload/files/wasejarafeviveloluritopu.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/n2ktcphtv2gip670pu1bmiqvii/borofowetegetudu.pdf
- https://mikludava.lt/images/files/68664448064.pdf
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613fdc687ccca---torazegazonalama.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/82b71i0qsspa1vtrks5ot2ac9b/zudinesosixezas.pdf
- https://jungleflightchiangmai.com/Uploads/files/tovefigof.pdf
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/16d3far2fhrnad1k1beln0tha2/42545285976.pdf
- http://cw-cut.com/uploads/file/50818703416.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=most+common+phrasal+verbs+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_off0000f850.binbf17d838e3e177af61b2bf7d69e9b0166c023ee222e68dbbf043d7e209b195e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF850 | 18940 bytes |
font_01_sfnt_off00012828.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12828 | 16792 bytes |
font_02_sfnt_off0001403f.bin9a4673e92325e6164a2a51b12ddfdf31de28355c84faac47537f2dc4dcbaf688 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1403F | 10992 bytes |
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