MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a large number of external URIs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the nature of the URLs and the PDF's structure indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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://oniceh.ru/uplcv?utm_term=principles+of+sequence+stratigraphy+catuneanu+pdf
- http://locktactyuma.com/userfiles/file/tivexoralugimixekurubu.pdf
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/b36d425d1880f84122492c30197da8b1/sodigaguwelig.pdf
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/d90a5b8c9eaef3ea776a299a23517355/90297754515.pdf
- http://emeat.ru/var/files/34400134036.pdf
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/44ceea7567027cdc4ae6fe2297542cf2/90168764186.pdf
- http://qytbearing.com/upfile/file/kofixu.pdf
- https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/kofp9aq89dqbpku3ceq77bh428/21361730685.pdf
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/32180d939c431438376422e68941a240/litizorulupajizerani.pdf
- http://ccspatti.org/userfiles/file/jomoke.pdf
- http://rmgoals.com/userfiles/files/zulevubijetenavilefemamav.pdf
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160847e6374078---dejukawux.pdf
- http://www.deopendeur.org/imgUser/file/54473217916.pdf
- https://binarbaidfabrication.com/public_html/userfiles/file/57043196368.pdf
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/ba187692b0f49efa90c1014d616e3c5d/nefojuzasiroxa.pdf
- http://salkim.com/userfiles/file/55655610439.pdf
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160c7c134c8d9e---98753123966.pdf
- http://vangphugia.com/userfiles/file/jetawojufigusemilo.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/263dc0b29ec065b090e0b23f7aa91b95/xusunikixaz.pdf
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/istrd1drtr9684shhegdre0356/xafarewovafidekapital.pdf
- http://wsystem.sk/userfiles/files/84344919413.pdf
- https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9f8de6a6938656d16123cfa5b6e3a660/pokufa.pdf
- http://tlxzkj.com/uploads/file/201218172204.pdf
- https://fiberglasssupplydepot.com/userfiles/files/rotinowegonojef.pdf
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16094676934455---97190063980.pdf
- http://thermcom.cz/userfiles/file/33250726212.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_off00015a3c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15A3C | 16792 bytes |
font_01_sfnt_off00017253.bindab5ab64ac8914d33c1107ac6580b8203fcc71e83cafff2e174add2b1277892a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17253 | 11260 bytes |
font_02_sfnt_off00018c27.binc6bbe782ab428a86ac52d0965f12d2943788b2250735e9a43b512a14d785eb6d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18C27 | 17556 bytes |
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