MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document that contains a large number of external links, many of which point to disposable domains. The document body is heavily obfuscated, but the presence of external URIs and the PDF_SEO_LINK_FARM heuristic indicate a likely attempt to drive traffic to malicious or spam websites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or SEO spam.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
-
ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
-
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
-
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.
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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://jacksth.ru/strik?utm_term=what+is+the+main+purpose+of+page+breaks+in+ms+word PDF link annotation
- http://ejqy.com/94274337218w1ti.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501045/normal_601f533f47895.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444092/normal_600dcb6b0df8e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453129/normal_603b781a75d62.pdfIn PDF document text
- http://merishwheelrecords.com/287517583028zgi1.pdfIn PDF document text
- http://vurejowug.mypressonline.com/70633752648.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368477/normal_6056cf0a7b514.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450240/normal_5fc98b5ecbe7b.pdfIn PDF document text
- http://sizuxofutitarax.mypressonline.com/9247453576.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476285/normal_603542b25f0b4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369768/normal_5fd0a48834d80.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459917/normal_6057a51a36fba.pdfIn PDF document text
- http://kudikadip.getenjoyment.net/cavendish_university_courses_and_fees.pdfIn PDF document text
- http://mizebojusur.mypressonline.com/45228580762.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446772/normal_603c3b858c297.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4453908/normal_5fe3dbd0a44f6.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/kewuxejikiwe/donkey_shrek_mask_template.pdfIn PDF document text
- https://64e18f06-8a0e-4dc1-8427-9dd81b4bff36.filesusr.com/ugd/baa514_5278ff0871a84e72a08578ffdaa268db.pdf?index=trueIn PDF document text
- http://laxukumelukadut.myartsonline.com/saxulisagifijovivuv.pdfIn PDF document text
- https://438e95ed-c264-4db5-88d3-1a9ca8b91b86.filesusr.com/ugd/733c1f_fbcdd06feb7d497ab313bfac04ea442b.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/litunux/facebook_lite_app_for_free.pdfIn PDF document text
- https://s3.amazonaws.com/pibabopuduj/letad.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f15d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF15D | 5732 bytes |
SHA-256: d8237a30d6db079901db036de28d17c1ebf9d29947e826ee7440028387fcc508 |
|||
font_01_sfnt_off000104cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104CF | 10260 bytes |
SHA-256: a675449aed2e0b148f9b2372867b71e807864fe1edc8a763ec7d2324beb62f51 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.