MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1055.012 Process Injection
The PDF document was flagged by multiple heuristics as containing a link farm and was identified as malicious by ClamAV and an ML classifier. The embedded URLs, such as 'https://garglob.ru/uplcv?utm_term=android+developer+tips', and links pointing to compromised CMS uploads suggest an attempt to lure users to external resources. The document body is heavily obfuscated, preventing a clear understanding of its specific content, but the overall structure and heuristic firings indicate a malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://garglob.ru/uplcv?utm_term=android+developer+tips PDF link annotation
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140a245ef664---56317319338.pdfIn PDF document text
- http://2015.letnifestiwal.pl/ckfinder/userfiles/files/pivoxujitemera.pdfIn PDF document text
- http://sea-cruise.ru/ckfinder/userfiles/files/ludisato.pdfIn PDF document text
- http://medica-brno.com/files/pufepat.pdfIn PDF document text
- http://luxcottage.ru/stroykamen/userfiles/file/janiworuxifox.pdfIn PDF document text
- http://konferencii.org/web/uploads/assets/file/besonuzodozetefowezim.pdfIn PDF document text
- https://techielingo.com/fck_uploads/files/32977339191.pdfIn PDF document text
- https://topinsolventa.ro/userfiles/file/sixemiwatanaduvabumagiwi.pdfIn PDF document text
- http://karthikeyanjayaram.in/userfiles/file/nakajepejivovadepo.pdfIn PDF document text
- http://tyros-club.de/userfiles/file/61349366502.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/18475548025.pdfIn PDF document text
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cb0d539149---60420170649.pdfIn PDF document text
- https://maharajganjtimes.com/assets/ckfinder/core/connector/php/uploads/files/dumefirujumupakija.pdfIn PDF document text
- http://ashleymongolia.mn/uploads/files/493887290.pdfIn PDF document text
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/99d16c01b44e6cc4ee22eb6816f75259/gabalogunetafowubafudunij.pdfIn PDF document text
- https://renfrewareahealthvillage.ca/ckfinder/userfiles/files/81646108539.pdfIn PDF document text
- http://fcv-bo.org/data/fcv-bo/userfiles/file/zeraridileduxaw.pdfIn PDF document text
- http://dailycan.com/userfiles/files/43678196832.pdfIn PDF document text
- http://hzkontejnery.cz/ckfinder/userfiles/files/94902655431.pdfIn PDF document text
- https://truongthanhco.vn/webroot/img/files/17695875610.pdfIn PDF document text
- http://spalovnachemolak.sk/userfiles/file/numosimereted.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_off0000d347.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD347 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eb5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB5E | 10272 bytes |
SHA-256: 1413a0efe3dfa648c6a19be996c9a8f5778ef63ac96a9eb80dc2b0a590c20354 |
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font_02_sfnt_off00010290.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10290 | 17136 bytes |
SHA-256: a1382c40870ab79344cd46c9707532871fa3a8397b9306f86e5ffc401ba1ca99 |
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