MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs point to compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the nature of the URLs and the detection names suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd4a78cc72---piguziku.pdf
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/cjah7tkq9bqcpsro497hjigi45/bomomeparasuselanepulopa.pdf
- https://www.sehersirin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c05a678c3f---rezorowukukutodup.pdf
- http://chithanhplastics.com/uploads/userfiles/file/lumepa.pdf
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/4fca72e9802bc9d280613160a616c8d1/63632275399.pdf
- https://rybczewice.pl/userfiles/file/9200913569.pdf
- http://geose.ru/userfiles/file/13483044798.pdf
- https://dixietemporarystorage.com/wp-content/plugins/super-forms/uploads/php/files/604a69ee19dd83cfff9e965be82688c8/nekomovatiderefakozun.pdf
- https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/b4nbanqtjjjmdgiukpue93tgd4/19092971465.pdf
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/f4ab1f7dbbd6e23ebc8cc6b949b9b19c/jadolasafizegixigujena.pdf
- https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/681f16f813258dea1edfeadf9135aae2/ketusefokif.pdf
- http://greenplanetnepal.com/userfiles/file/96157249053.pdf
- http://botosani.ro/img/uploads/file/gonuninovofalamilezamor.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-6-20/20210620220547384020.pdf
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa15df4664b---70065938496.pdf
- http://pinzimoniofiumicino.eu/userfiles/files/62577165799.pdf
- http://jikaramen.com/uploads/files/73297050276.pdf
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4984d7f341---64699141817.pdf
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/2c01491b2d5c33ba9e848702f647b02d/zajew.pdf
- http://abovomedia.hu/_user/file/debamudebowefurisowi.pdf
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/4f1cc225c5577ffd347b2000a946ec07/3969811128.pdf
- http://ytbozhuo.com/upload/file/250538045604.pdf
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608efb23a2a91---kamox.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=cough+for+2+weeks
- 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_off0000eb63.bin899d516aa055367eccbdcce5eb04bb97cd6601b4270fc5a3e394392b32cf7d5f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB63 | 17228 bytes |
font_01_sfnt_off0001186f.bin6fb1e17822951aacb69f3c9bef8961d25407c6e7567900d14e93c15060581db3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1186F | 10420 bytes |
font_02_sfnt_off00013064.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13064 | 16792 bytes |
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