MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous external URIs, with one pointing to a suspicious domain 'pelibifir.ru', suggesting it functions as a link farm. The document body is heavily obfuscated, but the presence of embedded URLs and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicate a likely attempt to redirect users to malicious sites for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 5
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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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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/award?keyword=buku+burdah+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4481520/normal_601faa66a231a.pdfIn PDF document text
- https://cdn.sqhk.co/begokaxawip/hfjgibS/personal_safety_alarm_canada.pdfIn PDF document text
- http://instapriz24.online/10th_class_maths_solution_tiwarijp6wh.pdfIn PDF document text
- https://cdn.sqhk.co/miwujegibus/DhdhfGO/zinepogaruf.pdfIn PDF document text
- http://form-lnstagramverificationbadge.com/extremely_close_and_incredibly_loudv5w92.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4371246/normal_5feb7955d4a0e.pdfIn PDF document text
- http://vvinorama.fun/teradata_dba_tutorialtcci9.pdfIn PDF document text
- http://svarka-aurora.online/garmin_oregon_600_drivern2l3x.pdfIn PDF document text
- https://cdn.sqhk.co/noxivudeva/J4Yhdgd/9034318802.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4479226/normal_6015d029e60fa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426572/normal_601e6d16c382e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4404113/normal_5fee9c33a7d63.pdfIn PDF document text
- http://complect-tech.ru/automation_software_tester_salary_in_india6jv4y.pdfIn PDF document text
- http://santand-es.com/intel_sound_drivers_for_windows_7_ultimate_free_downloadrva7x.pdfIn PDF document text
- http://douchehq.xyz/proform_tour_de_france_tdf_cbc_indoor_cycle_reviewsw5reu.pdfIn PDF document text
- http://iminn.ru/38845609306sfre9.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/92e5edcd-951b-45ed-9a08-8e866dbb9ea9/what_is_sat_in_blood_work.pdfIn PDF document text
- https://c4fca8c4-0f54-45c3-ae88-320069d86c16.filesusr.com/ugd/ac0d21_2270632ba065477fa980e71d9ad67778.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6c5b041d-0ed6-4e22-8802-a59505e1dc1a/asus_rt-n10e_wireless_n_router_configuration.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7c373139-8f3d-406e-b1e6-b4c915554bfd/what_to_mix_with_green_apple_crown_royal.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9ceb97f2-2380-42f1-99ea-76755ac0cd1e/73022179113.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8701473b-6325-4c9c-b6d7-a39392f5361f/culture_and_imperialism_short_summary.pdfIn PDF document text
- https://89511c73-251b-4bee-a1a5-5f4bd4863124.filesusr.com/ugd/f24cb8_7de5826401f34f0791d88b2392d41daa.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_004_off000126aa.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x126AA | 27016 bytes |
SHA-256: 986e00662c75a420442b8281dbc0cdfd6142bc0632b73675825ff153c56a8edc |
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font_00_sfnt_off0000ef75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF75 | 5172 bytes |
SHA-256: 745072e8f506e5d964dfce79c415408ccd2280ac9ee30e4dc86e73311ac283a6 |
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font_01_sfnt_off00010105.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10105 | 11016 bytes |
SHA-256: e2f9ddda6900908b6db6bf474d418bb76c7362e038ab5af648105daf31414b8f |
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