MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous external links, with one prominent URL pointing to 'vilenefex.ru' and a query parameter suggesting a lure for 'techstream activation code'. The document body, though heavily obfuscated, contains references to the authoring application and creation date, but the primary malicious indicators are the embedded URLs and the high-risk heuristic firings.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://vilenefex.ru/strik?utm_term=techstream+activation+code PDF link annotation
- https://fofupapezu.weebly.com/uploads/1/3/4/3/134356394/divinivata.pdfIn PDF document text
- https://cdn.sqhk.co/nowavutu/TjjWic6/whatsapp_messenger_free_download_for_pc_latest_version.pdfIn PDF document text
- https://rubexanow.weebly.com/uploads/1/3/5/3/135346757/1880530.pdfIn PDF document text
- https://xabomitutopimo.weebly.com/uploads/1/3/5/9/135961599/robap.pdfIn PDF document text
- http://foxiduwanati.mygamesonline.org/free_merge_mac_os_x.pdfIn PDF document text
- http://kevakigev.medianewsonline.com/beginner_new_headway.pdfIn PDF document text
- https://cdn.sqhk.co/datawafag/8ggPahj/snake_and_ladder_game_rules_in_telugu.pdfIn PDF document text
- https://cdn.sqhk.co/doginifa/higjOgi/64221515217.pdfIn PDF document text
- https://cdn.sqhk.co/wovegorarev/ZBgfvLg/8_ball_pool_hack_app_iphone.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/e8fc03ae-c310-4393-9223-0daed6941ea8/criminal_justice_behind_closed_doors_story_explained.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/59518e6e-06f6-4e28-8c26-79467c379c70/speak_book_summary_third_marking_period.pdfIn PDF document text
- http://rivenoke.onlinewebshop.net/awaken_the_giant_within_review.pdfIn PDF document text
- https://7a69a04d-b0b3-478e-a927-895b34d3dd44.filesusr.com/ugd/159848_c5b86ad219a24109a0da8dad8bc1b143.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/vexosafugunu/kiwuguxozikipefimifuk.pdfIn PDF document text
- https://s3.amazonaws.com/gudukupir/bombay_high_court_cause_list.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b4c9e208-3da0-4b6f-80c8-8d13a1a9b28f/how_to_learn_algebra_1_step_by_step.pdfIn PDF document text
- https://907864b8-ab38-4b43-b195-7646ee37c451.filesusr.com/ugd/c4b402_938152ac600149319a396c14e9100328.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/96f45475-52fe-4c0a-8d11-9aadda271674/charbroil_grill_brazilian_steakhouse_prices.pdfIn PDF document text
- https://s3.amazonaws.com/mojivikapeti/nebifosevovajuzosopig.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00014e50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E50 | 4168 bytes |
SHA-256: ac792bfd60436a9a015bc412dc2b39f7b1ae1c7bd11b420c73d0695bb293e650 |
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font_01_sfnt_off00015d27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15D27 | 5156 bytes |
SHA-256: bebe1ef5e49ab94c58fd7399a1ed3fbcc6b0a1939f804fdaead1837e682d6f64 |
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font_02_sfnt_off00016e89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16E89 | 11980 bytes |
SHA-256: 386be79e57eb08058bd92cff248cac69c69612d23290601c5b07e5953de8908f |
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font_03_sfnt_off0001976b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1976B | 16204 bytes |
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e |
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