MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ClamAV as a phishing trojan. Heuristics indicate it's a link farm and uses social engineering ('ClickFix') to prompt the user to run a command, likely to download a secondary payload. The embedded URLs point to potentially compromised domains, suggesting a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 7
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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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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://oniceh.ru/uplcv?utm_term=how+do+you+take+off+safe+mode+on+an+android
- http://zerosquareonline.com/file/renurom.pdf
- http://drukarnia-warszawa.pl/pliki/file/7678167973.pdf
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/62111a1a702f46ae591d0a12c2a9859a/43484378441.pdf
- http://bimbrlata.cz/UserFiles/File/61456178024.pdf
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143b1e9ea6bf---dutejazege.pdf
- https://www.db-ynox.fr/ckfinder/userfiles/files/53066876520.pdf
- http://cheapneasytrafficschool.com/CheapNEasyTrafficSchool/pa/trainstation/uploads/image/file/39040867339.pdf
- http://hongdacable.com/d/files/vewirilinevepuxed.pdf
- https://hotelite.in/userfiles/file/fivoxufozaja.pdf
- https://ijp2.com/contents/files/repapuwapowuneve.pdf
- http://hk-bbc.com/upload/file/66859993508.pdf
- http://xn----7sbab1bcaqplb0ccyi9d.xn--p1ai/files/file/wapebatevetipibirefirew.pdf
- https://artedeeducar.com.br/ckfinder/userfiles/files/wemuwijikijowabari.pdf
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/5116bf8516069309abb8ff2735d9d1d6/47937504542.pdf
- https://roarmysecurity.ro/mm/file/vopotegiteg.pdf
- http://shriadinathbank.com/uploads/tumefa.pdf
- http://studioscoponi.eu/userfiles/files/gunuranuvomita.pdf
- http://nacyc.jp/Upload/file/87155630955.pdf
- http://starinviter.com/ckimagefiles/takuzarebilemukasugun.pdf
- https://alansglobalservices.com/ckfinder/userfiles/files/wunutiwanexededinina.pdf
- http://haitrungkim.vn/uploads/userfiles/file/gifezonikalupopulonemaru.pdf
- http://hai-bi.com/uploads/files/202109130454066692.pdf
- http://sprinter-lab.ru/content/File/supotuwezajasugifuxerebid.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_off0000c7f4.bin669070386a2bae736306b77e9403faa69be2c1ef6d951fac12c21f9537753c1e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7F4 | 17556 bytes |
font_01_sfnt_off0000f550.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF550 | 16792 bytes |
font_02_sfnt_off00010d67.bin7e36a7857756a474dd868c30d5f7a36e0183cf25f3c8de65335a5cb442729b13 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D67 | 10852 bytes |
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