MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous external links, many of which point to compromised websites or disposable domains, as indicated by the 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery through these links. No scripts were extracted, and the document body was unreadable.
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://chcial.ru/uplcv?utm_term=town+hall+10+war+base+link PDF link annotation
- http://csc0532.com/userfiles/file/20210916021303_x4yhae.pdfIn PDF document text
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/04d79f4a82aa93290f949275d2934d1a/58785185861.pdfIn PDF document text
- https://oykufestivali.com/ckfinder/userfiles/files/dogiwevavisudujuvupe.pdfIn PDF document text
- http://kerrya.com/ckfinder/userfiles/files/92727489758.pdfIn PDF document text
- https://ozora.schaffsen.com/contents/file/6815490066.pdfIn PDF document text
- http://kryotherapie.net/neu/userfiles/file/bakutoponet.pdfIn PDF document text
- http://growlink.biz/userfiles/file/dibativogurik.pdfIn PDF document text
- http://nghiencuuykhoa.com/uploads/userfiles/file/tokavowap.pdfIn PDF document text
- https://saikekanglun.com/filespath/files/20210914000147.pdfIn PDF document text
- http://musicpark-live.com/userfiles/file/borererezewajojoxokoguri.pdfIn PDF document text
- http://drentmedischadvies.nl/uploads/files/kevepakozosimer.pdfIn PDF document text
- http://geodez.com/pliki/file/2429761797.pdfIn PDF document text
- http://abwsalisbury.com/uploads/files/bufalifanumipoxagal.pdfIn PDF document text
- http://gpsputhuppally.com/userfiles/file/wokagupogek.pdfIn PDF document text
- http://soeurs-scjboran.fr/soeurs/upload/files/wifev.pdfIn PDF document text
- http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/2439551760.pdfIn PDF document text
- https://ww150004.linebot.net/upfile/files/20210916215646.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/cb75c241720179d9b0449251f07ab74d/45003722000.pdfIn PDF document text
- https://beldapromosyon.com/calisma2/files/uploads/74219450131.pdfIn PDF document text
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/7857cfe864b59901db7c0cc668330c86/bixogugitanaxiwini.pdfIn PDF document text
- https://jiu-hang.com/upfiles/editor/files/vavozizupif.pdfIn PDF document text
- https://ladida.asia/sporlegen/administrator/imagetempfile/fibefujowikikog.pdfIn PDF document text
- https://bibonatura.hu/ckfinder/userfiles/files/97316177397.pdfIn PDF document text
- http://dopuskvsro.ru/UserFiles/15426034234.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_off0000b30f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB30F | 16048 bytes |
SHA-256: 071a8501fe2b5db35085bdd700b79c11cac692eb1e834516f3fb9cc2c86078d8 |
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font_01_sfnt_off0000dc5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC5B | 10560 bytes |
SHA-256: fe2047da217f7c62e039d95f7ab447bdac8060b2675d7c976e6b2124b6e71542 |
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font_02_sfnt_off0000f471.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF471 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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