MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting a phishing or credential harvesting campaign. The PDF structure itself is identified as a link farm, further supporting this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://chcial.ru/uplcv?utm_term=perimeter+calculator+with+solution
- http://aj-logistics.com/stock/userfiles/file/rakopula.pdf
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608301b88d17f---94921712996.pdf
- https://www.autodepotperformancegroup.ca/wp-content/plugins/super-forms/uploads/php/files/nrgicn8vba5ap33d7br8epcoe1/55343102070.pdf
- https://rockdental.co.uk/wp-content/plugins/super-forms/uploads/php/files/c2df683cd0c6c234d5dc1f92efbb9ae1/9748478343.pdf
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/ae459b8bf099170e566b772b4f3c969a/xifizenulezasunevadiwu.pdf
- https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/0636b182a5c33f7cb613d595560b60fe/22658307042.pdf
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/2f4b9e40788613ac867f23ccf90576e7/kolago.pdf
- https://dewalt-naradi.cz/media/upload/editor/file/rikokivumelavorupuv.pdf
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/96141fd7f268cc2d93b5f57e6c325243/59544926309.pdf
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/6354d765201edb6c0d6c5a0fc0e1ac81/65872197479.pdf
- https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/7bb50e43dc043490a1ff3bbca8683a67/jadiwaneranulonotimonowe.pdf
- http://sahrugs.com/userfiles/file/97103581804.pdf
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/6176d749cacdcbf2b948262b28344a40/fasomonukirotumajikero.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/6f9d31ad9999d5e8c44a4323ff93b1db/rujobosogaluni.pdf
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606c92aa6f1a8---bemeragun.pdf
- http://kirilmazbardak.com/userfiles/file/99898725240.pdf
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bdb2290bddf---49913074087.pdf
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160825682f32f2---kusutox.pdf
- http://reunionclass.com/clients/7469/File/setajobupokimesusub.pdf
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160818f83dddc8---24631184553.pdf
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/c00e1faa931de04851a5a95e75aa726b/81118093895.pdf
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/uv6ejjcm9mpbu9tg02mbf7as24/sivizilu.pdf
- http://anhbanglaw.com/userfiles/file/74246720083.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_off0000ff97.binfe7143c8778f23405e7066bf186a936f29a4857e80b14e95e7ade1929c502679 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF97 | 10680 bytes |
font_01_sfnt_off000117f6.bin352308dcfb1e83c3dc169af2f79449f35cf0bc2515cdfe5c34090a58af67baff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117F6 | 19132 bytes |
font_02_sfnt_off00014aca.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14ACA | 16792 bytes |
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