MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous PDF files hosted on compromised WordPress sites and disposable domains. This structure is indicative of a phishing or malware distribution campaign, where the initial PDF serves as a lure to redirect users to malicious content. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
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://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16084107fe7978---jelapemorodami.pdf
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/9b885f594fc35b48d1204f25163d82d3/pudajat.pdf
- http://186086.com/upload/files/xenibu.pdf
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/ouoh68h43qr0ve4f2aopsuopo7/44755733475.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/1qn44p9cgml1tnub9r9qntarq8/47550423124.pdf
- http://indyskischool.com/ckfinder/userfiles/files/kimaginesevoniketab.pdf
- http://kulturazebrak.cz/userfiles/72107753518.pdf
- https://micast.de/wp-content/plugins/super-forms/uploads/php/files/fnv9aka75uqn8bppcibt0fge1v/webebevorimabozifukifiwas.pdf
- https://betalinktech.com/blmedia/file/tofunizutoremopitojojiruw.pdf
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/gabtidt3gsm5942df7er81v414/40554741333.pdf
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fca8e538d5---kirugujonulu.pdf
- https://samngaimarble.com/html_upload/file/47295646408.pdf
- http://www.rkcomdesignservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607294efc88ec---fatabilitijimofosomubi.pdf
- http://tochuchoinghi.org/files/52183919240.pdf
- http://www.gesas.it/media/mailinglist/file/wakazozipodabolixuwexenu.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb028ae6670---42420869110.pdf
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/6529f8f613f69639ddd314c9fce2e7f7/lojatesujevor.pdf
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de67c077a2e---lifelixetikixabaz.pdf
- http://btc-ltd.com/upload/file/lotafaf.pdf
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/17f1b72b5d78d4d9666d4bccdef8011b/xigepoxa.pdf
- http://botosani.ro/img/uploads/file/bilidinuputeduxuz.pdf
- http://nadiadsa.org/userfiles/file/9705323949.pdf
- http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc4e932945---42240652278.pdf
- http://gavinlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/47564067245.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=the+straw+that+broke+the+camel%27s+back
- 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 |
|---|---|---|---|
font_00_sfnt_off0000d8e2.binc2cd7111f013656c88ae853a7097942d0782f27b3725b32a4217960c4c5ef9c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8E2 | 19200 bytes |
font_01_sfnt_off00010b64.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B64 | 16792 bytes |
font_02_sfnt_off00012375.bine06ebeaa2bb94d9bf14337b0794fec2c9c4a66e30291689b6f6234bfe360c8a5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12375 | 16232 bytes |
font_03_sfnt_off00013959.bin5da53bdf6d56aa8b46cf0921e24ca4066d8629d63f88afcd123f836b14acaed4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13959 | 10612 bytes |
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