MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it's a link farm on disposable hosting and a callback phishing lure. The document body, though heavily obfuscated, contains references to 'Stihl f5 56 rc fuel' and 'wkhtmltopdf', suggesting a potential lure related to product information or a fake document. The presence of numerous external URIs, many pointing to potentially malicious domains, further supports a phishing or scam attempt. No scripts were extracted, but the overall structure and heuristics point to a phishing document designed to trick users into calling a fraudulent number.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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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://leonvi.ru/strik?utm_term=stihl+f5+56+rc+fuel PDF link annotation
- https://static.s123-cdn-static.com/uploads/4486565/normal_5ff4fe3cd36ba.pdfIn PDF document text
- https://cdn.sqhk.co/xetilibul/icqjgg8/moto_actions_port_apk.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387035/normal_5feb004a4a6df.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383582/normal_600aa5e12777d.pdfIn PDF document text
- http://ketorebagibof.22web.org/waxukedibexijil.pdfIn PDF document text
- https://cdn.sqhk.co/vefapatape/2vyVUwe/46194529998.pdfIn PDF document text
- https://cdn.sqhk.co/lasotepana/fhcyihe/wevajetexajero.pdfIn PDF document text
- https://cdn.sqhk.co/roretuduva/jcfiijc/crusades_saladin_and_richard_the_lionheart.pdfIn PDF document text
- https://cdn.sqhk.co/pemoxeriko/prSeian/6624910335.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4488090/normal_5fd84db5b230f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4401691/normal_600631da7a783.pdfIn PDF document text
- https://cdn.sqhk.co/mifijizudi/C4hjijf/mix_colors_to_make_burnt_orange.pdfIn PDF document text
- https://cdn.sqhk.co/kitujesijak/ihlFJgj/serijetuxenokoku.pdfIn PDF document text
- http://zuluwana.iblogger.org/58205651711.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://wasutin.epizy.com/belofipoviz.pdfIn PDF document text
- https://s3.amazonaws.com/ritoma/lumokesovivuwatuxefu.pdfIn PDF document text
- http://bususetut.epizy.com/cuneiform_tablets_description.pdfIn PDF document text
- https://s3.amazonaws.com/nitirew/aambala_songs_masstamilan._co._in.pdfIn PDF document text
- https://s3.amazonaws.com/posufij/activity_based_costing_notes.pdfIn PDF document text
- https://s3.amazonaws.com/sedowedi/bandook_chalegi_video_hdvd_9.pdfIn PDF document text
- https://s3.amazonaws.com/lukepepe/equifax_security_breach_report.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dcc1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCC1 | 4960 bytes |
SHA-256: 0f9b23129c0a6f925afe6af5ad2038d6adc6cd0435ad32a70abf446649d20b43 |
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font_01_sfnt_off0000edad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDAD | 10020 bytes |
SHA-256: 24923df9c3fc15ba638dbee8b1d40c5098615b1b283b12f18b1ae80023a0942d |
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