MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains numerous external URIs, including one pointing to 'jottigo.ru' with a keyword suggesting a lure for 'Avast registration code free'. The heuristic 'SE_LOLBIN_RUN_COMMAND' and the presence of external links suggest an attempt to redirect the user to a malicious site, likely for phishing or to download a secondary payload. No scripts were extracted, but the overall structure and heuristics point to a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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://jottigo.ru/wix?keyword=avast+registration+code+free PDF link annotation
- https://static.s123-cdn-static.com/uploads/4366395/normal_5fcee8d5373bc.pdfIn PDF document text
- http://xomapometafa.iblogger.org/lagu_senorita_free_stafaband.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381340/normal_5fe81eebb13a5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367302/normal_5fd15f48ea0f0.pdfIn PDF document text
- http://stavki.link/cowboy_games_pc_free7y8ji.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4425910/normal_600b6bf70df7c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4478127/normal_5fc96539e698c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4423148/normal_5fd86df8c3998.pdfIn PDF document text
- http://xevimajitufom.iblogger.org/65286892050.pdfIn PDF document text
- https://cdn.sqhk.co/laruxibut/g4EEiji/digital_school_planner.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4421776/normal_5ffd29ac450e5.pdfIn macro / runtime command snippet
- https://static.s123-cdn-static.com/uploads/4456985/normal_5ffa01ebb26ee.pdfIn PDF document text
- http://kulinar2020.site/sudabuwituwutegopona33vs.pdfIn PDF document text
- http://clientesdkb.com/zewumomoxipiwodoyfyed.pdfIn PDF document text
- http://wownatural.fun/digelait82d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/lusabifef/81536925941.pdfIn PDF document text
- http://naxokagad.epizy.com/febokasoxutinotudu.pdfIn PDF document text
- https://s3.amazonaws.com/gujutavevive/xiwijulujebubu.pdfIn PDF document text
- http://kunubuxeduw.epizy.com/how_to_do_echo_command_in_cmd.pdfIn PDF document text
- https://s3.amazonaws.com/voropa/scratch_programming_tutorial.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
- https://s3.amazonaws.com/voropa/scratch_programming_In macro / runtime command snippet
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f63c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF63C | 3076 bytes |
SHA-256: 271f5413cec5190998082e4909e350bda68020e34fb4f380a48acb6ccffaafb2 |
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font_01_sfnt_off0001011e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1011E | 5208 bytes |
SHA-256: 5ec146d0c41eece4e8420528948225424ac2dbde2b2c038a31583d1593998af6 |
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font_02_sfnt_off000112e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112E4 | 2680 bytes |
SHA-256: 672a0c9655dd258ca9cf1add38b71c7efe5ece41893cc1c585ebd1f6db1892a6 |
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font_03_sfnt_off00011e36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E36 | 10208 bytes |
SHA-256: dfc483a58623fcbfc15d29eac189c2237be2e098af09f13c98c6fd4cc4c6a8d8 |
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