MALICIOUS
206
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though partially corrupted, presents a deceptive title to entice users to click on these links, which likely lead to malicious sites or further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 7
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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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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://pelibifir.ru/strik?utm_term=why+are+there+us+military+bases+in+germany
- https://zanixikowupu.weebly.com/uploads/1/3/1/4/131437740/tumonufiwu.pdf
- http://muxoman.mygamesonline.org/lejemifunino.pdf
- https://cdn.sqhk.co/muwunupudi/gjHKiM2/wusun.pdf
- https://cdn.sqhk.co/dabebasavus/ggghhbg/rinufobaliveriromofiv.pdf
- https://zuvimetuna.weebly.com/uploads/1/3/5/3/135304981/baa5480c8e5c046.pdf
- https://fafenerukore.weebly.com/uploads/1/3/1/3/131398145/bifixazolukon-naxuf.pdf
- https://cdn.sqhk.co/godajaxox/hdji7u0/angie_s_list_super_service_award_logo_vector.pdf
- https://cdn.sqhk.co/tewigoju/nXsq1ja/employee_bonafide_certificate_template.pdf
- https://xomikevogonenoj.weebly.com/uploads/1/3/4/7/134743799/lovixonobi_xezaxazobupagek_taweka.pdf
- https://kuwomodelinero.weebly.com/uploads/1/3/0/7/130776449/4112912.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://9610c43f-1b2a-4a8a-b660-75aaf3908198.filesusr.com/ugd/286fb8_093dc9300f794f0fa5c1fbc8728c28cd.pdf?index=true
- http://pabizex.atwebpages.com/3100705931.pdf
- https://s3.amazonaws.com/wudibirewuduto/asp.net_mvc_4_standalone_installer.pdf
- https://fc060a1e-8c1d-4b7d-bafd-75f79d4c6355.filesusr.com/ugd/c0a468_3c6bd83616af4eea989b3a87b49ab297.pdf?index=true
- https://6f8cb219-4830-455d-9ced-b55e65700e85.filesusr.com/ugd/fd30ac_425d36f6f5e14b6f9b19921e8fe9ce4d.pdf?index=true
- https://01c19f78-c7d0-441a-b56a-8672493f87de.filesusr.com/ugd/9d66c7_a341096caf46479189397e6825ce458b.pdf?index=true
- https://76c9fb28-c10e-4950-85be-37de24a2ede8.filesusr.com/ugd/fa32a6_0726a16b3a2c4659a86841299241d49e.pdf?index=true
- https://s3.amazonaws.com/jotogorurekuro/vered.pdf
- https://s3.amazonaws.com/susonanezaj/kaba_mas_cencon_lock_manual.pdf
- https://6d428a25-da86-44fa-8f13-5b0f09742281.filesusr.com/ugd/3649d2_d1b60b8b40764a1a9200261c7141b6ee.pdf?index=true
- https://76ed6b59-b034-43ac-b949-e1c08f76e3cb.filesusr.com/ugd/ee6100_c96bc942faee404e96f2d42b7e90e199.pdf?index=true
- https://s3.amazonaws.com/wetowuzuxit/24251100460.pdf
- https://s3.amazonaws.com/fejenijovekozu/araba_yaris_oyunu_apk.pdf
- https://c3d762b3-5d50-4891-ab6d-43710edd2423.filesusr.com/ugd/3254bf_f186fb7957d443c9bc56147620ac4ff2.pdf?index=true
- 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_off0000fdc7.binefa008166a438fe216ccec3c532995d0429ac034d34e58d09e2c56414ff00333 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDC7 | 5352 bytes |
font_01_sfnt_off00010fe8.bin685a6f9068bec0346ec7958db4ce211a356f41c5ecfc3ca7f185edeb2e995c61 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FE8 | 12192 bytes |
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