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 purpose of directing users to various websites. The document body, though heavily obfuscated, suggests a lure related to 'optimism definition pdf'. The presence of multiple external URIs and the ML classifier's high confidence score indicate a malicious intent, likely related to SEO spam or phishing campaigns.
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://bologen.ru/award?keyword=optimism+definition+pdf PDF link annotation
- https://zimegusak.weebly.com/uploads/1/3/4/6/134605775/lopisoz.pdfIn PDF document text
- https://zililerapasaram.weebly.com/uploads/1/3/1/4/131412603/7958312.pdfIn PDF document text
- https://wefupavoxed.weebly.com/uploads/1/3/2/6/132682659/fawejoguv.pdfIn PDF document text
- https://xixusumer.weebly.com/uploads/1/3/0/8/130814933/tavewavinulifep.pdfIn PDF document text
- https://tevidozeji.weebly.com/uploads/1/3/4/8/134887032/a67ab53fce.pdfIn PDF document text
- http://jobesagaponapa.22web.org/kendo_grid_column_html_template.pdfIn PDF document text
- https://vabeluzaxudi.weebly.com/uploads/1/3/4/8/134884936/f619960399f.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/benubapopikaj/44374502424.pdfIn PDF document text
- https://01c19f78-c7d0-441a-b56a-8672493f87de.filesusr.com/ugd/9d66c7_6577492e00ea47b5a44c26d68a8256bc.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/zesotat/bemezovizugogeku.pdfIn PDF document text
- https://5926284e-b61c-4ed0-95e5-27b9feedd2c3.filesusr.com/ugd/50c35f_39c87d743e0b4014957ac595d21e96d1.pdf?index=trueIn PDF document text
- https://b81e1767-bb0d-4562-9f98-cfef66859bb1.filesusr.com/ugd/b48b60_bac8f281c0db421899ea1bb89d509137.pdf?index=trueIn PDF document text
- https://276658a2-c6b1-4a23-bc3b-56c82bce4278.filesusr.com/ugd/f9448a_b2e581016dd041e28a67a79c50941ffd.pdf?index=trueIn PDF document text
- https://c2093f15-f4fb-4bda-9582-db5404103fa6.filesusr.com/ugd/b28561_75de7ce2e7074208a4f3667fd2b8acff.pdf?index=trueIn PDF document text
- https://39c3e2ba-dcb8-4bc0-9ed7-0058f02c59d5.filesusr.com/ugd/fd4c29_1200f431bdcc44f8a9779299095d97e3.pdf?index=trueIn PDF document text
- https://2a07c75e-e898-48ba-b326-4cccc82d0599.filesusr.com/ugd/ff154e_a463518b43b240b6983837963042aafb.pdf?index=trueIn PDF document text
- https://9df6e0af-a028-4e88-91ba-61a1b37318d5.filesusr.com/ugd/7c1f05_3d8579d15434405d972e44da5723757c.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/zexozavo/lifidama.pdfIn PDF document text
- https://ba30dffa-51fe-4caa-9472-6f142403a9bb.filesusr.com/ugd/c2007e_ba0b1f55ae18487da6a555d2b751b595.pdf?index=trueIn PDF document text
- http://gojexigubobe.epizy.com/avira_antivirus_for_linux_free.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_off00013396.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13396 | 4876 bytes |
SHA-256: e50658156c1d61adeda27716ce40719396c0c04395efa266d3db02dfc1d6376b |
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font_01_sfnt_off0001441f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1441F | 10964 bytes |
SHA-256: ab713a33d8c3385232c82d638a7fa1fa382b3f2738bed972b855fbb550681203 |
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