MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO spam operation. One of the embedded URLs is https://bologen.ru/wix?keyword=hamlet+act+3+test+answers, which is presented as Hamlet test answers, a common lure for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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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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://bologen.ru/wix?keyword=hamlet+act+3+test+answers PDF link annotation
- https://kogafisefog.weebly.com/uploads/1/3/1/4/131438876/jogiwefux-vufarujigakopaz-wapef.pdfIn PDF document text
- http://fapasevusiledap.mygamesonline.org/wawadew.pdfIn PDF document text
- https://pojigivawoju.weebly.com/uploads/1/3/5/3/135348152/135351.pdfIn PDF document text
- http://sufofure.mywebcommunity.org/molikapunufe.pdfIn PDF document text
- https://pumazamobu.weebly.com/uploads/1/3/0/8/130874095/zegetakab.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387712/normal_60066993888b9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4484169/normal_601bddf2e43d0.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4404529/normal_5fe3dd4fe225e.pdfIn PDF document text
- https://lerusebarumawod.weebly.com/uploads/1/3/4/4/134478547/b7b79.pdfIn PDF document text
- http://fibisazorowax.mypressonline.com/alcatel_one_touch_pop_star_5070d_firmware.pdfIn PDF document text
- https://newovedisi.weebly.com/uploads/1/3/5/3/135348170/2312342.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://jukikusikodopom.epizy.com/what_is_the_best_riding_lawn_mower_to_buy.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e1a5e67a-e222-4543-8ca8-1af8b6d7ed55/vapitukuxivuxagexuji.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/711f5f4e-d822-47ba-a957-b9e4807c5953/55933763378.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1a80db94-7c4d-4d2e-86cb-68f13465a851/wipewafasiv.pdfIn PDF document text
- http://pilejifizodan.onlinewebshop.net/porigiwaviviguxive.pdfIn PDF document text
- https://d0fd53c2-66a5-49f7-a942-a4bfc50892a3.filesusr.com/ugd/11baf9_d85f4d0810a84524be1ccbec842da773.pdf?index=trueIn PDF document text
- https://153f2bed-3501-4ec5-9468-ed1987511f6d.filesusr.com/ugd/f67134_2cd5df2f389a4510868a659530c545a3.pdf?index=trueIn PDF document text
- http://tozibuxadotoba.epizy.com/template_felt_baby_shoes.pdfIn PDF document text
- https://26f2e344-8444-46ea-90c9-5a893bcc2fb3.filesusr.com/ugd/b8c837_3080b7d42da7443091469ca7ee06687f.pdf?index=trueIn PDF document text
- https://12c9c681-cafc-4f88-93da-cb6f471fd49a.filesusr.com/ugd/f09a9d_cc273b6a2140462dbe8c73109fbf37b2.pdf?index=trueIn PDF document text
- https://ef9935f7-a918-44a1-999f-f1d50a45e4a7.filesusr.com/ugd/b463f2_420a9007b3ef424c9adb6b70730f7a51.pdf?index=trueIn 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_off0000cc6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC6E | 5164 bytes |
SHA-256: 3e0b4a7615928d5aefd95beea9d303d96b2889ed9939a6597c7affd5b0f23209 |
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font_01_sfnt_off0000ddf1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDF1 | 10432 bytes |
SHA-256: dd0d608c274ca80adf1259429879be4b8157ba96e148af246196338baacaa8f8 |
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