MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of numerous external URLs, including one with a 'utm_term' parameter suggesting a tracking or lure mechanism, points towards a phishing or malware distribution campaign. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further suggests a deliberate attempt to host many links on disposable domains, reinforcing the phishing pretext.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 5
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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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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=update+software+latest+pro+mod+apk PDF link annotation
- http://nofatrans-int.com/userfiles/file/wutilovexib.pdfIn PDF document text
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/hhjuggf2u6ulh0ube6kjfofop6/19200729152.pdfIn PDF document text
- https://ingatlansos.hu/images/userfiles/file/45038821057.pdfIn PDF document text
- http://rideco.hu/upload/file/9773531906.pdfIn PDF document text
- https://hinodecoder.com/userfiles/file/wulebarulumulafawijuxi.pdfIn PDF document text
- http://carrozzeriardue.it/userfiles/files/86323129564.pdfIn PDF document text
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/13f6044df4c149cf7f89ad13f8d3b6d7/zonuvadezizomopu.pdfIn PDF document text
- https://gangnampools.com/contents/files/56931205655.pdfIn PDF document text
- http://www.moyekolodin.com/files/nesegasokem.pdfIn PDF document text
- http://lagrupacio.cat/file/pugidedafogunelilu.pdfIn PDF document text
- https://securitydm.rs/slicice/file/buzagepofiboteduparut.pdfIn PDF document text
- https://neksav.com/upload/ckfinder/files/77024299102.pdfIn PDF document text
- https://sikahaiphong.com/images/news/files/88605891911.pdfIn PDF document text
- http://www.trackls.com/application/ckeditor/ckfinder/userfiles/files/21518285703.pdfIn PDF document text
- https://eghamatsafar.ir/basefile/eghamatsafar/files/wixuxakuxobaxomuzovinuzi.pdfIn PDF document text
- http://bjhtdszdh.com/v15/Upload/file/202192030168856.pdfIn PDF document text
- https://bikeid.net/ckfinder/userfiles/files/65181404809.pdfIn PDF document text
- http://wimborst-ceramics.nl/ckeditor/ckfinder/userfiles/files/fivowinijujejezumebujog.pdfIn PDF document text
- https://adian.eus/files/galeria/files/9006609048.pdfIn PDF document text
- https://patriciogaete.com/upload/file/xakotupinazibodefulexomon.pdfIn PDF document text
- http://laconchigliacasevacanze.it/userfiles/files/47377070353.pdfIn PDF document text
- http://scpt.it/userfiles/files/livexobexabam.pdfIn PDF document text
- http://woori-tour.kr/FileData/ckfinder/files/20210915_9399941522C3C01F.pdfIn PDF document text
- https://eyescare.vn/app/webroot/upload/ckfinder/files/44643899914.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_off0000c9bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9BB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e1cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1CD | 21156 bytes |
SHA-256: ed4052367772e326be21b2b7461abc68552e2bbc239dfad259a3eec302800806 |
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font_02_sfnt_off0001194a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1194A | 10648 bytes |
SHA-256: 94454cbfa09364a726b0464c3bc05d33ec038f05c7b2820aa9930aa1ae004ac8 |
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