MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, identified as a link farm, with the primary URL suggesting a lure related to '500 gk questions and answers'. ClamAV and ML classifiers strongly indicate maliciousness, specifically flagging it as a phishing trojan. The presence of embedded URLs and the structure of the document point towards an attempt to redirect users to potentially malicious or phishing sites.
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://pistant.ru/pbw?utm_term=500+gk+questions+and+answers PDF link annotation
- https://godobinoka.weebly.com/uploads/1/3/0/8/130815080/631309a.pdfIn PDF document text
- https://betivina.weebly.com/uploads/1/3/0/7/130774994/1695993.pdfIn PDF document text
- https://bizumoku.weebly.com/uploads/1/3/2/6/132681494/df2e5.pdfIn PDF document text
- https://zusonuxegaza.weebly.com/uploads/1/3/1/4/131437774/dujupilaxapeda-foxed-wogukoxugo.pdfIn PDF document text
- https://nixejovebomir.weebly.com/uploads/1/3/1/3/131380485/luzarisoxakudo-romunifikuda-zavegufad-gasiji.pdfIn PDF document text
- https://sazezikamujut.weebly.com/uploads/1/3/1/4/131438312/5606761.pdfIn PDF document text
- https://kuwavumiwedow.weebly.com/uploads/1/3/4/6/134673312/rutexamu.pdfIn PDF document text
- https://vugogirofezufus.weebly.com/uploads/1/3/4/3/134355312/87485.pdfIn PDF document text
- https://bawoxuvebi.weebly.com/uploads/1/3/4/8/134886771/8dd7eccaa8c85a.pdfIn PDF document text
- https://luminesip.weebly.com/uploads/1/3/4/1/134108660/posedovipogi-moxaxukebowon-jirojakoxifaw.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://uploads.strikinglycdn.com/files/4a6c7173-0a2c-45ae-b4fe-b963cc44fd1b/what_is_the_difference_between_a_duplex_and_an_accessory_unit.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cb963c33-227c-4c0e-b575-c120e52fb160/los_juegos_del_hambre_1_peliculas_completas_en_espaol_latino.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e457f815-3f50-419c-a003-6e87d56421aa/82012743395.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f5a03bf5-cfa7-4332-a643-bffe3bf742b6/linirogemuji.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/94a21f9e-7053-4be5-8896-6a18283331e5/genofafato.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/771bb17d-0591-4bd4-b500-373ff5040afd/vexedaxelefibuzivibedize.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/82e4b913-e73f-4095-8aff-5c156ba35839/kufugiwanuw.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/63736192-c456-4d3b-ba3b-61318ff60011/wesewelezovogejafupapap.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00013f68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F68 | 5412 bytes |
SHA-256: 597efb6d49b295e51682dd9e1f5d029251035b723809234b5268b36bd1193b60 |
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font_01_sfnt_off000151ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x151EF | 11616 bytes |
SHA-256: bdbb39b98222dce6818f560bb916a5ca3892d4c72bfd6ff4e9c632bdea3a5747 |
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font_02_sfnt_off00017974.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17974 | 4264 bytes |
SHA-256: e18561b4d139b351445f46cce699d30ec8a7712f35449c377524341ffd665028 |
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