MALICIOUS
156
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 a machine learning classifier indicated a high probability of maliciousness. It contains a large number of external links, with a primary suspicious URL being https://xajibur.ru/strik?utm_term=astronomy+101+lab+answers+csi. The heuristic PDF_SEO_LINK_FARM suggests the document is designed to create a link farm for SEO, which is a common tactic for distributing malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
Heuristics 5
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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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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://xajibur.ru/strik?utm_term=astronomy+101+lab+answers+csi PDF link annotation
- https://cdn-cms.f-static.net/uploads/4449968/normal_605b6a322a5ce.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417662/normal_5ff2c04f78333.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491410/normal_6068753e54e83.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452217/normal_606bd4e500c99.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366366/normal_602a35b34810a.pdfIn PDF document text
- https://rigavedisibabaz.weebly.com/uploads/1/3/4/9/134902328/mobonimi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4472208/normal_6042f4208d843.pdfIn PDF document text
- https://losaburi.weebly.com/uploads/1/3/5/3/135322327/43084d9648803f.pdfIn PDF document text
- https://jurarolo.weebly.com/uploads/1/3/4/3/134351512/f1be7e303e7b29c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4401691/normal_60113573ae9c4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402507/normal_5fdccaf6abac6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369764/normal_5fe036f32e8bd.pdfIn PDF document text
- https://pitudonela.weebly.com/uploads/1/3/5/3/135323021/d6d01c.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
- https://uploads.strikinglycdn.com/files/da975abc-77d7-45d3-a46c-19897af9fc22/jekasupanen.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a0ef0b7d-88e3-435a-89b3-1ef2b4dae409/cuisinart_coffee_on_demand_12_cup_coffee_maker.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/638fe34f-bb4d-4f39-8354-d26fb7bbdc79/65044188262.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/797835e6-979d-4c8f-8147-8c6aace5b3a5/beats_solo_hd_original_price.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c4d7d32e-d1af-4ebb-97f5-6ed182648f6b/sram_apex_1_crankset_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c1f066ea-3384-4d92-9bab-be4336645eb6/sepipoxatidikiwezinapilus.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ae275a6a-2572-4303-bc7a-5f2a4dd275c8/futusafabakexodumimixuses.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dcbdf359-3144-4387-af26-50aeba86fc93/powera_enhanced_wired_controller_for_xbox_one_walmart.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1759f7b7-0b03-46d5-ac6d-edbad2f008ee/rt_n66u_wireless_repeater.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f7497e52-f826-4c46-893a-19907f35f166/difference_between_oracle_client_12c_and_19c.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/93258bad-592a-4c11-bb16-1e4fb5c150c7/2226324479.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_off00011008.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11008 | 5248 bytes |
SHA-256: 27a9b7178750462dc9657d46dcc9e29fb3492a732ca5e98fab64cb6237fb1a4e |
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font_01_sfnt_off000121d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121D8 | 10532 bytes |
SHA-256: cec8377f99ed9e9e5a988c330603d7787d4fa94e3df6a3e5f0f41701a8b7d16a |
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font_02_sfnt_off000145b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145B3 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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