MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by multiple heuristics and an ML classifier, specifically flagged as a phishing trojan. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users. The document body, though heavily obfuscated, contains metadata related to 'learn korean for beginners free online' and the wkhtmltopdf tool, indicating a lure to attract clicks to these malicious links.
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 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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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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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://laborke.ru/pbw?utm_term=learn+korean+for+beginners+free+online PDF link annotation
- https://cdn-cms.f-static.net/uploads/4459025/normal_600f9dbb871c6.pdfIn PDF document text
- https://fosezuwupilure.weebly.com/uploads/1/3/4/1/134132817/tugoviju_widudi_fotanokazuj.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367275/normal_60369a0234637.pdfIn PDF document text
- https://lifagixuwemup.weebly.com/uploads/1/3/0/9/130969738/5e92c836810.pdfIn PDF document text
- https://fowowudajij.weebly.com/uploads/1/3/5/3/135312379/6554520.pdfIn PDF document text
- https://wivezinafixozut.weebly.com/uploads/1/3/0/9/130969190/3472463.pdfIn PDF document text
- https://watagejikifawup.weebly.com/uploads/1/3/4/5/134589749/bodasogasiwefemawotu.pdfIn PDF document text
- https://dutizadip.weebly.com/uploads/1/3/4/8/134889078/giwadaxeri.pdfIn PDF document text
- https://zikamesezelili.weebly.com/uploads/1/3/4/8/134857079/8735296.pdfIn PDF document text
- https://suzokixuvajix.weebly.com/uploads/1/3/0/7/130776208/bikavasenin_janatexi_sepusesefuzo.pdfIn PDF document text
- https://pulamawuba.weebly.com/uploads/1/3/0/8/130873907/xarefiw.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476281/normal_603041765eb7d.pdfIn PDF document text
- https://siwufofewexiv.weebly.com/uploads/1/3/5/3/135329456/rimagokez_sewun_gobodabupaguruz_suvodiweker.pdfIn PDF document text
- https://mewuvirinikupu.weebly.com/uploads/1/3/4/5/134505229/tovetuvik.pdfIn PDF document text
- https://tavebesu.weebly.com/uploads/1/3/1/3/131381332/157bebe.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4502248/normal_5fc88689e4bbe.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
- http://wixugigir.pbworks.com/w/file/fetch/144458991/69454317299.pdfIn PDF document text
- http://mikabipi.pbworks.com/w/file/fetch/144450447/97636048615.pdfIn PDF document text
- http://xalanupuzewo.pbworks.com/f/realidades_1_capitulo_3a_answers_page_50.pdfIn PDF document text
- http://wepoline.pbworks.com/w/file/fetch/144450282/age_of_empires_2_definitive_edition_cheats_car.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e1b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1B0 | 4788 bytes |
SHA-256: 8f443d0f2dfdf2e3a7bea7d21d693ab877bda0a8f416592127d4587b89dedfe7 |
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font_01_sfnt_off0000f203.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF203 | 10580 bytes |
SHA-256: 68e63bb9337504506650c18dbf932f598aeb7e6ef4f182620d38c2d510ea539f |
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font_02_sfnt_off00011619.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11619 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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