MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous links, many hosted on compromised WordPress sites, suggesting a link farm designed to redirect users to malicious or phishing content. No scripts were extracted, but the presence of external URIs and compromised hosting points to a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/160cb191d85632---68408887900.pdf
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b6437d640c6---9297864404.pdf
- http://nsfeed.com/_UploadFile/Images/file/gozatepev.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080df3e9eb82---14117391031.pdf
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca2eccc555---24820412267.pdf
- http://dataction.org/demo/dataction/media/dosunupa.pdf
- https://blogsma.com/files/81523225744.pdf
- https://bistakalikotenetwork.com/userfiles/file/82486483291.pdf
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160809aafef153---xuxozoboma.pdf
- http://dedanskecasinoer.dk/userfiles/file/toladeborulojutox.pdf
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16098cbfd1ff19---83262422182.pdf
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d59b5300d---moted.pdf
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160f0869d9a728---xowakewoxesiwepo.pdf
- http://alituncer.com/userfiles/file/40445134005.pdf
- http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608530c4b49d0---50908411109.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e661b64d7d8---69503166470.pdf
- http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad77d3426d8---29187878240.pdf
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/16072ac3e33f9f---misosirefixigofoki.pdf
- https://incasur.org/temp//files/4927700934.pdf
- http://bizbecho.com/pa/trainstation/uploads/image/file/9377107031.pdf
- http://anhbanglaw.com/userfiles/file/marigasetukavavaxuzewipur.pdf
- https://777mto.info/contents//files/jefepowupuj.pdf
- http://pospatrans.cz/UserFiles/File/werasiguzulijuwalireraxaf.pdf
- https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/f71a8f6adc10a8e1b847f266f28f232f/titinidobawevemefe.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+upgrade+my+dstv+package+in+nigeria
- 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_off0000efec.bin23191a20989a09959b2cbcbcedb805b598ca26499a9d836ac043174a76a4ddba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFEC | 16428 bytes |
font_01_sfnt_off00010645.bin7c65cc7a0dda3e06413cae8836ed368eec3dde74e08846507f75071f8d8919a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10645 | 17332 bytes |
font_02_sfnt_off00013387.bin792e771a6ff86cd897eed47037e35b5cf6199c34af87ccde801b81ce69795a92 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13387 | 11260 bytes |
font_03_sfnt_off00014dd6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14DD6 | 16792 bytes |
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