MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF containing a large number of embedded links, many of which point to disposable hosting services and are likely part of a link farm. One critical heuristic indicates a malicious redirector link, and ClamAV detection confirms its malicious nature. The presence of 'Insta 4liker mod apk' in the document body suggests a lure for potentially unwanted software or phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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.
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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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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://yafferge.ru/123?utm_term=insta+4liker+mod+apk In PDF document text
- https://paparudedolenod.weebly.com/uploads/1/3/4/6/134686514/putuzetinu-xubuvazunevozit.pdfIn PDF document text
- https://rifidikebipe.weebly.com/uploads/1/3/0/9/130969129/xejelivuxuzeve-vatefaxofevesov.pdfIn PDF document text
- https://panebafizi.weebly.com/uploads/1/3/4/3/134365464/5926110.pdfIn PDF document text
- https://ropaligezavizaf.weebly.com/uploads/1/3/5/9/135962070/1328250.pdfIn PDF document text
- http://tijijosopake.22web.org/83994531166.pdfIn PDF document text
- http://drilltech.info/xulomemabljd9p.pdfIn PDF document text
- http://vorgazme.com/netgear_wndr3700v3_factory_reset59i0a.pdfIn PDF document text
- https://lijogidatu.weebly.com/uploads/1/3/2/3/132303170/napobegoxurabe.pdfIn PDF document text
- https://gojijaxokan.weebly.com/uploads/1/3/0/7/130739343/masenizugap-xumulofoderat.pdfIn PDF document text
- http://fortuneo.biz/mcgill_gpa_scale_20196d729.pdfIn PDF document text
- http://raffle.website/brothers_movie_ringtone_pagalworldr0v95.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://54d25d35-1219-4e5f-97c3-905e72ea606f.filesusr.com/ugd/6d59ab_86cb7337bfc449c794b3c8f61888f667.pdf?index=trueIn PDF document text
- http://jozapatoxijoraw.epizy.com/mubekepu.pdfIn PDF document text
- http://tupanukaxigazit.epizy.com/work_anniversary_card_template_free.pdfIn PDF document text
- https://8964868a-aef6-4da0-9a9b-29de7c28e0c5.filesusr.com/ugd/b910ae_565987fdb7b54ee990092b07002022d8.pdf?index=trueIn PDF document text
- https://32cf4326-ba62-484c-a3ca-05d02c2dd2e5.filesusr.com/ugd/0b46e6_ac302a5ec378487cb26ee7f5954da94c.pdf?index=trueIn PDF document text
- https://b5f169ef-6bcf-4d19-a24b-32bdc9dd7a5f.filesusr.com/ugd/2e79a6_e61b293d26174b499f33ccad014a49ab.pdf?index=trueIn PDF document text
- http://lavaraf.epizy.com/dimakobaribi.pdfIn PDF document text
- http://tonesovuxor.rf.gd/bubidifigegopag.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_off0000f3d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3D6 | 5192 bytes |
SHA-256: a41bc5dde249a070bd16e6713dc94b82e0d1d31ecca54b12c5ff5ce5a95f6142 |
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font_01_sfnt_off0001056c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1056C | 22312 bytes |
SHA-256: eca1162b16c6d024474e9f4e1eaa2804a2fce9e7f303c06d9fe1f56878f14af8 |
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