MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised WordPress sites, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a spearphishing attachment designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://krisoc.ru/uplcv?utm_term=ombre+hair+green+and+blue
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a4f59e3571---54013121031.pdf
- https://renebeumer.nl/userfiles/file/19991741167.pdf
- https://emmaushuis.org/pages/23722699429.pdf
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/160814fea5ced0---51284125139.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b56a89310b---xujimuf.pdf
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/c8n9pfnjd2hc5dvd7vt79150u4/sujipazumopukunefekon.pdf
- http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b7db771e8ed---46135832340.pdf
- http://art-lan.ru/uploads/assets/file/44435122324.pdf
- http://canadanur.com/resimler/files/65862926135.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b26978d8de1---27828660426.pdf
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/e4070a58658374ba8398918dbab39883/mijijifu.pdf
- https://olgapopovaphoto.com/wp-content/plugins/super-forms/uploads/php/files/83c6b527dba9bc289418512c53080a45/pabaxinipuvitizoriwerole.pdf
- https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/f6qbp63psbgc0ess211lbkf958/64479939745.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2b5d41b5e6---lezilikesoledib.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084f706ceaf1---79401532250.pdf
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/c4f6e977e5a08cb52e44653090f72720/7694660538.pdf
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085e397183fa---wenag.pdf
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e77bb545a---14212833128.pdf
- http://ahlhy.com/uploads/file/061024419139.pdf
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16084e2ec59bea---95960354981.pdf
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16080241a5411c---82316027442.pdf
- https://atl-50.com/files/file/sizowixexuwalovesegotop.pdf
- http://asesorgubernamental.com/images/file/19103612202.pdf
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bb2d74b1caf---87277507355.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_off0000eaf6.bin35f6767a20dac2f7cfbed635b7444004edba7d6ebb4ab8add21467786d8fae28 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAF6 | 10572 bytes |
font_01_sfnt_off0001029c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1029C | 16792 bytes |
font_02_sfnt_off00011aae.bin95fa6df397f58754ed35625c0125a813d8df8a21efd595c89bb565ba4294fb2d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AAE | 17204 bytes |
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