MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ML classifiers and ClamAV, and exhibits characteristics of a link farm. It contains numerous embedded URLs pointing to various websites, some of which are hosted on compromised or disposable domains, suggesting a phishing or malware distribution attempt. The PDF structure and the presence of multiple external links strongly indicate an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 http://www.herbertvanderbrugghen.nl/draft/65617998527.pdf
- http://noahmission.org/dataroom/file/xavududobomegu.pdf
- http://getrade.net/uploadfiles/file/pimad.pdf
- http://strojsteel.cz/webpagebuilder/ckfinder/userfiles/files/wuwowagede.pdf
- http://gimnazjum-krasiczyn.pl/img/userfiles/file/97540345517.pdf
- http://niengrangchuyensau.com/upload/contentFile/file/tujeluz.pdf
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/e1c417b4980295189feb27d0e462c6bc/nelejiligozuw.pdf
- https://dadrarad.ro/userfiles/file/selaragovaretamelakuwe.pdf
- http://studiocinti.eu/userfiles/files/loxufodefanoboke.pdf
- http://elandtour.com/FileData/ckfinder/files/20210904_8E0A6A8B40122A84.pdf
- http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/0bdd9e39940f48cc09888a619b624c88/danowa.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/161469dd764fb1---15103568289.pdf
- http://cokhiminhhien.com/media/ftp/file/39283018480.pdf
- http://bienchidan.org/uploads/files/55281492022.pdf
- https://oncallanatomist.com/ckfinder/userfiles/files/88271128237.pdf
- http://gmkms.net/upfile_editor/2021/files/23958089443.pdf
- http://fluorescent-training.com/file/jofobesumunokifuta.pdf
- http://jiendurancecoaching.com/ckfinder/userfiles/files/bawewimodu.pdf
- http://distant-property.ru/fck_editor_files/files/xesokulimuxilefew.pdf
- http://fszhenjia.com/upfolder/e/files/20210917195007.pdf
- https://skyzoan.com/cake/beta/userfiles/file/jokuwuvoz.pdf
- http://ahcxdq.com/uploads/file/131843009864.pdf
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161536aa60a85e---1813107313.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=friv+moto+3xm
- 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_off0000b690.bin580d9fec8888b823d509dc9e2fa20ede43accbe026969bb9f946f2f2cefd4679 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB690 | 19688 bytes |
font_01_sfnt_off0000e9d7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9D7 | 16792 bytes |
font_02_sfnt_off000101ed.bin32983decb69f2a32b7606c99c91cd3a0f38ecfa28ff5dc437bb02786b3752b15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101ED | 9972 bytes |
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