MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by both ML classification and ClamAV, flagging it as a phishing trojan. The heuristics indicate it functions as a link farm, containing numerous external links, with one prominent URL being http://safadixuzet.rf.gd/24706581361.pdf. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a URL that appears to be a lure, 'https://nipisod.ru/strik?utm_term=you+do+meaning+in+tamil'. The presence of multiple external links suggests an attempt to redirect users to potentially malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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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 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://nipisod.ru/strik?utm_term=you+do+meaning+in+tamil PDF link annotation
- http://vumejopiraxu.mywebcommunity.org/68909729322.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414866/normal_604de2e8cfc56.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4445729/normal_5ffb5bf5c796f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4390643/normal_6053072c78f76.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474446/normal_601fdcd164ea3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444092/normal_6038b8f0716af.pdfIn PDF document text
- http://fapepewakidij.22web.org/dremel_3000_kit.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4385011/normal_5ff79db7d04da.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410191/normal_6022f88269fca.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415946/normal_601e874762097.pdfIn PDF document text
- http://tikukef.22web.org/vikizoxemujivod.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4503309/normal_604f07843ccb9.pdfIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://safadixuzet.rf.gd/24706581361.pdfIn PDF document text
- http://gagujejadozudor.rf.gd/72529781822.pdfIn PDF document text
- https://35479656-6a94-44d6-ac55-da507c14a2ae.filesusr.com/ugd/d68318_0b4e0af1d612487fa88131c522e42a78.pdf?index=trueIn PDF document text
- http://vekemelegewimo.atwebpages.com/tamil_through_english_conversation.pdfIn PDF document text
- https://fa3f2985-242d-4a4c-93c0-6adbfb259eaf.filesusr.com/ugd/8dbe7a_b62fcd01b7fc4d60a8ee2383e0ac2405.pdf?index=trueIn PDF document text
- http://kutusejanofoxem.epizy.com/worldwide_airport_codes.pdfIn PDF document text
- http://fapomotomojopog.epizy.com/thanksgiving_gratitude_list_template.pdfIn PDF document text
- https://964beff5-d24f-450a-94e2-fa7e9faef44a.filesusr.com/ugd/61158f_91f5677ad06f4b6680fabeaba1836208.pdf?index=trueIn 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 |
|---|---|---|---|
stream_003_off0000f3ff.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xF3FF | 13040 bytes |
SHA-256: e8e32a566912322edbfde98f8e85114c03eb1a865a3a6e2480dae229e341f06c |
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font_00_sfnt_off0000e3a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3A5 | 4832 bytes |
SHA-256: a62c9e45417500ca7a0b3d432ce072dbeceb1ccbcbbe543bf1dae198370610be |
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font_02_sfnt_off000113c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113C3 | 11388 bytes |
SHA-256: cf14aac74bc077d096d62f25fe2de8acc93e2db34a9bcbbe0ffee727a1aa3b42 |
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