MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, exhibiting characteristics of a phishing or trojan delivery mechanism. It contains a link farm pointing to compromised WordPress sites and other disposable hosting, likely intended to redirect users to download a second-stage payload. The presence of a 'Password-protected archive lure' heuristic suggests the user is instructed to obtain a password to decrypt the actual malware, a common tactic to bypass initial security scans.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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 https://huntic.ru/uplcv?utm_term=jugar+age+of+empires+2+online+hamachi
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/ffcb108a91eb73dc4729e1fec9fadc2c/95580890469.pdf
- http://immobilieninvestors.de/userfiles/file/sizojoradubivabaxizuv.pdf
- https://vandolderskb.com/images/usr/6142797979.pdf
- http://artside.org/data/temp/file/69874106023.pdf
- https://optimustelecoms.com/ckfinder/userfiles/files/99183228978.pdf
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b9c4a7329a1---20151255033.pdf
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/mb89bnb6j6cqjbnnj8ul3f5o2r/49738575296.pdf
- http://attlas.center/userfiles/file/vazogele.pdf
- http://nutronicltd.com/userfiles/file/peraketumakozizesivitesas.pdf
- http://milwaukee.center/userfiles/file/75870727312.pdf
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/16073750889f74---pixelofegesafefuta.pdf
- https://cmflower-kkc.com/ckfinder/userfiles/files/18350904681.pdf
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a38d90eb10b---72290153446.pdf
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/d0ff9be7e5653131bc3164ce0386d935/gutasewosizodobamusubexe.pdf
- https://hoavily.com/uploads/files/kalog.pdf
- http://hogan1973.com/clients/d/d4/d4eda5e2427b34f3a15374adde9a77da/File/fademixizusikijilela.pdf
- http://balogmihaly.hu/UserFiles/file/31580409168.pdf
- http://magnumprint.ru/upload/files/38303375627.pdf
- http://beerskiboot.de/img/upload/file/guxum.pdf
- http://kondicionery-dolgoprudny.ru/upload_picture/file/tototosijekad.pdf
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160edee7aaf704---48526373193.pdf
- https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/ee9526287f64f61f0949aa49daff3428/91248284026.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/161123f3dc69e7---68587862630.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160cb0b271c459---wowafa.pdf
- http://naturallabs.de/userfiles/file/baziwip.pdf
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607897ead166a---pexunuzuzijepunokuk.pdf
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c89975e02d7---wodunitijotabesejiwapim.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_off0000f5ba.bin6e2e1aea27d3664768e3a98440de18231035a977d30df6a17aa1e5323c310631 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5BA | 11040 bytes |
font_01_sfnt_off00010f3b.bin3c02c4e36bf1bc87fefd62fb07420304eeba9952083569ce482ee19a9894fe6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F3B | 18336 bytes |
font_02_sfnt_off00013e21.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E21 | 16792 bytes |
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