MALICIOUS
194
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, suggesting a link farm or redirection scheme. The presence of a URL related to 'apk root samsung a5 2017' indicates a lure to download potentially malicious software. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://gimoguvi.ru/wix?keyword=apk+root+samsung+a5+2017 PDF link annotation
- http://rapoxarawiwalo.sportsontheweb.net/anchoring_script_for_school_annual_day.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420756/normal_6018b1998b4ad.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4470412/normal_6004a96e9f969.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379731/normal_5fffeb556845b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417528/normal_60202754850d7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366633/normal_6035d12c39f25.pdfIn PDF document text
- http://xevedudox.sportsontheweb.net/dexipetimegotevegefo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4464710/normal_602ae368e8837.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4416150/normal_5fc8724f73c66.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404116/normal_600cbfe1cefa0.pdfIn PDF document text
- http://pikejofopon.mypressonline.com/genetec_omnicast.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4455886/normal_5ffd60b87ec30.pdfIn PDF document text
- http://kipokefurur.mygamesonline.org/dan_carlin_the_end_is_always_near.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://58f604bd-1fd8-4cfe-af9b-f15e67d030d5.filesusr.com/ugd/9a7439_4744ba0ca13a44ed96f4c5f3fc436d6f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/d26f0cc5-b1d4-4ea1-9d2c-04bc86df814b/fivedenanonelusemupetu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c8592e96-84f7-4e12-83e9-0f8a6dd6d219/fikupiwurufat.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b8397346-5f9f-4413-bfc8-10fe1e865d6a/how_to_read_financial_statements_course.pdfIn PDF document text
- https://24a70dd4-b549-4b9e-9c0a-6eea45ab85ad.filesusr.com/ugd/ab0c63_d774a54689c543b09e9d065ffecac684.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/474c4e9f-05a7-4b3d-89a5-172ac88c4283/my_cloud_os_5_app_ios.pdfIn PDF document text
- http://gajopule.myartsonline.com/math_about_me_worksheet.pdfIn PDF document text
- https://170a7d3c-74f0-42f5-9ead-98ae292a4922.filesusr.com/ugd/a18aa6_f9c2f9cbeb794ef7b8dbb412661b6434.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_off0000eb80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB80 | 5692 bytes |
SHA-256: 4c737f5e19f89da9ffad4434e0b98489e964c057dd8679b77c430789742a487b |
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font_01_sfnt_off0000fee1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEE1 | 11276 bytes |
SHA-256: fc5df26d8a75fedbe2b908a5daf8e9be85e42d5be805c80b000e9247526837be |
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