MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a heuristic firing for PDF_SEO_LINK_FARM and multiple external URIs, with one prominent URL pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery. The presence of embedded URLs and the nature of the heuristics suggest an attempt to redirect the user to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 6
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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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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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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://nipisod.ru/strik?utm_term=royal+mail+international+tracking+number
- http://xupenirulavep.iblogger.org/gusumogonijipobopape.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://uploads.strikinglycdn.com/files/448f511c-8894-422d-8e30-e4a0fe14df83/are_jeep_grand_cherokee_srt_reliable.pdf
- https://uploads.strikinglycdn.com/files/5ed84c7f-e781-4b94-8c42-ae363f22a84f/this_is_where_it_ends_book_synopsis.pdf
- https://uploads.strikinglycdn.com/files/98ee3bb1-2927-4412-b043-ce05baeed5b5/how_to_pair_a_directv_remote_with_a_samsung_tv.pdf
- https://uploads.strikinglycdn.com/files/23cd0a16-4fb2-47ef-ae39-3b6e5d1cc324/90775602787.pdf
- https://uploads.strikinglycdn.com/files/4ce27fbd-c828-443c-bc1b-ac8078892a8d/molecular_biology_of_the_cell_sixth_edition.pdf
- https://uploads.strikinglycdn.com/files/068aef16-5d06-4a1c-a775-1e09e66f2171/37039973111.pdf
- https://uploads.strikinglycdn.com/files/04a4cb0f-e182-4d16-af16-d26a3a0f1cb5/lg_v20_specification_and_price_in_nigeria.pdf
- https://uploads.strikinglycdn.com/files/9db684c9-2662-4f4c-bbb7-ed5259cc0647/vezimo.pdf
- https://uploads.strikinglycdn.com/files/1ae3c023-6222-4791-b3fb-d6c7e6ed95f9/14013196343.pdf
- https://uploads.strikinglycdn.com/files/cb50b06d-139a-40c6-b7e1-a5bf57b1756b/97457879244.pdf
- http://mirimanomuropa.rf.gd/the_story_of_ruby_bridges_discussion_questions.pdf
- https://uploads.strikinglycdn.com/files/eb655ef8-a4cc-4852-9380-32a5667f83d1/77867560863.pdf
- https://uploads.strikinglycdn.com/files/d5384f33-221b-4661-83c6-87c56abddf68/what_is_literature_review_in_research_paper.pdf
- https://uploads.strikinglycdn.com/files/b892a014-e453-4794-8f51-61ebca319ab1/the_magnolia_story.pdf
- https://uploads.strikinglycdn.com/files/b1c4fe54-cac2-4fd3-82b6-cef23695ca6e/how_to_use_graco_click_connect_stroller_without_car_seat.pdf
- https://ad323f3e-245e-4e3c-8b16-de91fefec063.filesusr.com/ugd/5ea691_984486dee27b4a4e93040f9f2ed7b6c8.pdf?index=true
- https://uploads.strikinglycdn.com/files/db6c77b4-771a-4cf8-a3cf-703fed38c979/is_pathfinder_enough_for_nda.pdf
- https://uploads.strikinglycdn.com/files/8778e0c0-a1b9-4905-9f09-3c73fb1a7400/77190214630.pdf
- https://uploads.strikinglycdn.com/files/6feafe0e-07b6-4473-a6fa-9988cedca5bc/syncrowave_250_dx_manual_espaol.pdf
- https://uploads.strikinglycdn.com/files/0ea2ee54-366d-412b-bac5-a97b9c5a187c/80373861950.pdf
- https://1a6defe7-92a0-4357-8a70-d3bce85d30c9.filesusr.com/ugd/385065_e7963b1d87d74fbda2d777e02173ac1c.pdf?index=true
- https://ef4b221f-cfb4-47e8-bf1d-3b5092770df7.filesusr.com/ugd/4948da_79ff81df1c7d40e3b5ca6b0a4567dd6b.pdf?index=true
- https://uploads.strikinglycdn.com/files/f828791e-2488-4a35-b492-72680c659793/3668084266.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ed50.bin97067e6f523ec50b7ede020111214ebfe933b194f29e381bcfe83af98bb58eb3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED50 | 5136 bytes |
font_01_sfnt_off0000febf.bin06c966d461f957466b2cd4fc156ea59a0680011ea7828286c8d474cdba656a57 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEBF | 10580 bytes |
font_02_sfnt_off000122bc.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122BC | 4324 bytes |
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