MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious content. The presence of numerous external URIs, many hosted on disposable domains and employing UTM parameters, suggests a link farm designed to redirect users to malicious sites. The document body, though heavily obfuscated, contains references to 'Vpn apk for android', aligning with the phishing lure identified by the 'SE_DOWNLOAD_BUTTON' heuristic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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 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://jottigo.ru/123?utm_term=vpn+apk++for+android+2.+3 PDF link annotation
- http://profer-opt.ru/46756437810nnv0d.pdfIn PDF document text
- http://idealslim-italiaofficial.site/tizifekalixuxexaxavau4a1.pdfIn PDF document text
- http://lnstagramverifiedbadgeservice.com/how_to_change_my_schlage_door_codefn0d4.pdfIn PDF document text
- https://funogefoxareso.weebly.com/uploads/1/3/4/0/134041001/561317.pdfIn PDF document text
- http://gayerkan.com/batulelus029wi.pdfIn PDF document text
- http://poopo.ru/how_to_work_out_calories_in_food_nzwgfb7.pdfIn PDF document text
- http://italysummer.space/zuzapazobakfsb3.pdfIn PDF document text
- http://abanca-electronica.com/adhar_card_password_2017q2iun.pdfIn PDF document text
- http://delayikapy.xyz/applying_economics_worksheet_factors_of_production_answers20ek1.pdfIn PDF document text
- https://pejupatuwotim.weebly.com/uploads/1/3/2/8/132814375/1077751.pdfIn PDF document text
- https://fetezubusob.weebly.com/uploads/1/3/2/6/132681625/3266570.pdfIn PDF document text
- http://reduslim-italiaufficiale.site/fft_spectrum_analysis_matlab0laef.pdfIn PDF document text
- http://podarokinsta365.site/animation_throwdown_hack_iosr1t3r.pdfIn PDF document text
- https://vematonejos.weebly.com/uploads/1/3/1/3/131383464/ximabixuxupitiwupod.pdfIn PDF document text
- https://mibujisoj.weebly.com/uploads/1/3/4/5/134525757/598fe.pdfIn PDF document text
- http://lifeshop.pro/vedafogobavesp6ufp.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/lorerexeg/risk_benefit_analysis_example_aba.pdfIn PDF document text
- https://s3.amazonaws.com/bufipevuril/poe_the_cask_of_amontillado.pdfIn PDF document text
- https://s3.amazonaws.com/sedimeraxufi/zosawotazizovi.pdfIn PDF document text
- https://s3.amazonaws.com/zomuzigo/67625307287.pdfIn PDF document text
- https://s3.amazonaws.com/ninazarila/soul_eater_manga_ita.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000edd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDD9 | 3204 bytes |
SHA-256: 56109dbeea5f11b7d9f369a4bc23920a3f2f2cf1a15d23f0ac0ade3ab73eaf8e |
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font_01_sfnt_off0000f918.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF918 | 4772 bytes |
SHA-256: 95e9812dc7cf71df1b8c8377f10cd8cef949859de4cab559d521fa8174c7253b |
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font_02_sfnt_off00010958.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10958 | 10956 bytes |
SHA-256: 6d85c53f3e8c8840755b68b706037173c4b301ebcad024522ec0689bfe7a070d |
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font_03_sfnt_off00012f3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F3F | 16092 bytes |
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848 |
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font_04_sfnt_off00014407.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14407 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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