MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to compromised WordPress sites, a common tactic for distributing malicious payloads. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to download a password-protected archive, a method used to bypass gateway scanning. ClamAV detection and ML classification further support its malicious nature, suggesting it is a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b74e3eec72f---xufewit.pdf
- http://tdfinalists.ca/clients/43449/File/82781420452.pdf
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160861392af4b7---sinarefud.pdf
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/koh1kunrjocg2lkomcfdsaprc5/20866742176.pdf
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160746fba2d004---78676670703.pdf
- https://aviseco.ro/userfiles/file/24332871113.pdf
- http://meadescafe.com/userfiles/file/70267925283.pdf
- http://taxicityplus.ru/userfiles/file/pajuxoxigus.pdf
- http://kemenyseprosiklos.hu/upload/file/libizuwosuxosefavape.pdf
- https://luminex.pl/upload/file/48542288864.pdf
- https://euroroma-bg.org/files/file/sitipovodawowajikumetukob.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609fbcdac4095---xevefawewuzajotidom.pdf
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca9599e821---fabofuporasa.pdf
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074fdd1679fa---kavudumagivufe.pdf
- http://ruoumoc.com/upload/files/pisowubatojarovazuz.pdf
- http://www.allatpatikapecs.hu/images/file/27017916370.pdf
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f641cbd21d---kiwik.pdf
- http://bestofbeer.ru/ckfinder/userfiles/files/26983364492.pdf
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075eabe471b9---44806992928.pdf
- http://softwarefactory.nl/images/file/fomukuramobi.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/ccf1fj7l4pq8tbp0ftasq8gtpk/mujowojidiwop.pdf
- https://angelsstaff.com/uploads/file/19340943195.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099b8a95b12d---neguripudirit.pdf
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c5dcf9d5ced---tegadoduvajafaximik.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=doctor+who+clara+oswald
- 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_off0000fcf5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCF5 | 16792 bytes |
font_01_sfnt_off0001150c.bin10716696c566b37664d5c00f1e5bffa792cfaa750585b20822bcfe652a4be4b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1150C | 10224 bytes |
font_02_sfnt_off00012c35.bin1a5d2b9be33119f0e9c265c0c2944bf1308b5ae0de4cd133a113f9d213fbd86d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C35 | 19224 bytes |
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