MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of external links, many hosted on disposable domains, indicative of a link farm. Heuristics like 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggest this is not legitimate content. The presence of 'SE_INVOICE_LURE' and 'SE_CALLBACK_LURE' heuristics further supports a phishing or scam intent, aiming to trick users into clicking malicious links. ClamAV also detected this as 'Pdf.Phishing.Trojan'.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
Heuristics 8
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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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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://nomylo.ru/pbw?utm_term=how+long+does+it+take+centrelink+to+process+youth+allowance
- https://static.s123-cdn-static.com/uploads/4416935/normal_6008d5b02bfd3.pdf
- https://zopogunonezaso.weebly.com/uploads/1/3/1/6/131637395/gexaluzugowigo_tigonuduretuf.pdf
- https://lewebivaduxug.weebly.com/uploads/1/3/5/3/135392118/4865185.pdf
- https://daxozeke.weebly.com/uploads/1/3/4/3/134322415/3008560.pdf
- https://cdn-cms.f-static.net/uploads/4380869/normal_6033c4925d69a.pdf
- https://cdn-cms.f-static.net/uploads/4450864/normal_603ff6e2245fa.pdf
- https://parukiwodisurup.weebly.com/uploads/1/3/4/4/134455528/mefojinopelodi-kixixirexafe.pdf
- https://begosibaluta.weebly.com/uploads/1/3/0/7/130775163/bepuzonadoj.pdf
- https://dizugupixaxagoj.weebly.com/uploads/1/3/4/4/134440249/titukuwub.pdf
- https://tosojeravi.weebly.com/uploads/1/3/4/6/134617838/pujemut.pdf
- https://tizijepen.weebly.com/uploads/1/3/4/2/134234944/boxezoge.pdf
- https://cdn-cms.f-static.net/uploads/4375514/normal_603bed4e31b09.pdf
- https://cdn-cms.f-static.net/uploads/4461746/normal_6052f86e23857.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/1186fc28-2078-436e-86a1-42f75b627a88/act_practice_test_1165d_answers.pdf
- http://nilanom.pbworks.com/w/file/fetch/144416151/troubleshooting_scansnap_s1300i.pdf
- https://uploads.strikinglycdn.com/files/5844e85b-3fe4-4613-a864-d3f2201f8933/jabubewaba.pdf
- http://redejok.pbworks.com/w/file/fetch/144520800/wedding_card_matter_in_english_for_daughter.pdf
- http://kiletejude.pbworks.com/f/libros_de_harry_potter_originales_en_espaolo.pdf
- http://bevojoluvu.pbworks.com/f/where_can_i_find_kanais_cube_in_diablo_3_ps4.pdf
- http://bezawagiga.pbworks.com/w/file/fetch/144601044/dirt_devil_power_max_pet_instructions.pdf
- http://luwapoveduvi.pbworks.com/w/file/fetch/144661104/how_to_megger_test_a_cable.pdf
- https://uploads.strikinglycdn.com/files/aa51a28d-3cee-47c6-a77b-0743af02d68e/sapataria_carocha_catalogo_de_cuentas_sat.pdf
- http://kivotin.pbworks.com/w/file/fetch/144550380/pukizakutimelozupuji.pdf
- http://lopofemusun.pbworks.com/w/file/fetch/144497676/cara_download_hello_neighbor_hide_and_seek_android_apk.pdf
- http://zixawedeg.pbworks.com/w/file/fetch/144644427/gesowivepisanosidi.pdf
- http://molitutolu.pbworks.com/w/file/fetch/144553944/lego_batman_movie_game_mod_apk.pdf
- https://uploads.strikinglycdn.com/files/18fa1859-1960-4c94-bcb3-7175718a5b94/what_are_victoria_covid_restrictions.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000118b6.bin75d5dd9ca4c8b65440daded47cd91bc3cd8b769b8d227826c271b3d2768a8e40 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118B6 | 5556 bytes |
font_01_sfnt_off00012bb1.bina252d7ade24a1ce52bee18a03418c20c9653df4e2db9c865b305a1e0b08a1208 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BB1 | 11900 bytes |
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