MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many pointing to disposable hosting services, indicating a link farm or SEO spamming operation. The document body, though partially corrupted, suggests a lure related to sewing machine instructions. The presence of PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics, along with ClamAV detection and ML flagging, strongly suggests malicious intent. The primary goal appears to be redirecting users to potentially malicious websites.
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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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://midufefew.ru/strik?utm_term=silvercrest+maquina+de+coser+manual+de+instrucciones PDF link annotation
- https://buzoraxuv.weebly.com/uploads/1/3/4/3/134366179/puxidu.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4386087/normal_5ff65d3dc6b9e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383451/normal_60609fd110cb5.pdfIn PDF document text
- https://vagapirub.weebly.com/uploads/1/3/4/6/134648019/2369079.pdfIn PDF document text
- https://zemutixo.weebly.com/uploads/1/3/4/8/134865820/83937f1e17.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410415/normal_5fe6d51e14d4e.pdfIn PDF document text
- https://sodefabufu.weebly.com/uploads/1/3/4/4/134473286/tijowupub-vimoxutobixelul.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454424/normal_5fd2684bcc9ed.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4494875/normal_6030cdc1d3f73.pdfIn PDF document text
- https://fudanologakobur.weebly.com/uploads/1/3/5/3/135394175/sizoramemir.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381738/normal_6033b69eafeee.pdfIn PDF document text
- https://pevarigemi.weebly.com/uploads/1/3/5/3/135303959/zajesoberi-vulixap-xewaxadugiliju-jaribuwemedoj.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/6332b604-16c3-4566-99d5-c3f96c81a247/33490303343.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0863e5ed-0164-4f93-a067-c6c0b965b8c5/50370071570.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d89d8bdb-c6e5-4d0a-9400-bb42a511dd7a/35307105098.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eba93db2-9c92-48ab-82cc-55a2236654f3/46574104239.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/922649e1-eaae-4107-b6e3-360b1e2a1ae3/midotizesem.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
- 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_off0000ee93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE93 | 5372 bytes |
SHA-256: 6a847f8d567117e73ce2b43522fa11a4ec46f70ec967a345b886b336cd480b88 |
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font_01_sfnt_off000100c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100C3 | 17308 bytes |
SHA-256: 2c215b69cf3a842d5c064e8cbfeeeda3e817a762d23ba8912e0f41e9145b9ae5 |
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font_02_sfnt_off00013278.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13278 | 16204 bytes |
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd |
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