MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a link farm with numerous URLs, many pointing to compromised CMS upload directories. One URL, 'https://irlanc.ru/uplcv?utm_term=hotspot+shield+hack+apk', suggests a lure for potentially malicious software. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://irlanc.ru/uplcv?utm_term=hotspot+shield+hack+apk PDF link annotation
- http://szcftz.com/upload/81469248820.pdfIn PDF document text
- https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/30d2ba54d731f0e42737e5e1681d8f4c/93284455322.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/be5i5veqg1m1fnelpup79tvr22/rowizuxo.pdfIn PDF document text
- http://mebelhotel.ru/userfiles/files/12252602383.pdfIn PDF document text
- http://archetipoingegneria.it/userfiles/files/foridowafaxukafiper.pdfIn PDF document text
- http://thuonghieutoancau.vn/uploads/files/zilesaparovopudojuxix.pdfIn PDF document text
- http://wtmongolia.com/materials/file/31675381361.pdfIn PDF document text
- https://www.moxiclear.com.au/application/third_party/ckfinder/userfiles/files/56572934415.pdfIn PDF document text
- http://xn--q20b13r9leepaeb.net/upload/file/202109181032323938.pdfIn PDF document text
- http://songpinhao.com/userfiles/files/xeropazitadefajinex.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/tanakolanuzibi.pdfIn PDF document text
- http://tevukasveza.lt/ckfinder/userfiles/files/vixiwabedenefitile.pdfIn PDF document text
- https://lompatjauh.com/contents/files/44966349378.pdfIn PDF document text
- https://mosallaesf.ir/uploads/ck/files/waxinudupa.pdfIn PDF document text
- http://mygiftltd.com/userfiles/file/torebagoni.pdfIn PDF document text
- http://splogservice.ru/content/files/xakubavegapi.pdfIn PDF document text
- https://blsautomation.com/ckfinder/userfiles/files/jopir.pdfIn PDF document text
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16133fc666220c---nuzokota.pdfIn PDF document text
- https://nhatngudongkinh.com/upload/ckupload/files/pivemujanebotedubifekozop.pdfIn PDF document text
- http://ulv-fogger.ru/d/files/siwimojuruguginadokegimin.pdfIn PDF document text
- https://marblo.com/app/webroot/img/files/xawuludekikejatati.pdfIn PDF document text
- https://freebcard.com/ckfinder/userfiles/files/15619279786.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ddb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDB6 | 10488 bytes |
SHA-256: 8b2378f8a2a512d891ae6f1b5ee0b81b497030b03479deb12bc651479c92add1 |
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font_01_sfnt_off0000f5aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5AA | 18556 bytes |
SHA-256: 294911c12c4cb7ec835b6d57ec3d413c659d7c8d91002a29d1c62d8641b0ac0a |
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font_02_sfnt_off000125d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125D2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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