MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many pointing to disposable domains, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URLs and the nature of the link farm point towards a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 6
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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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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://midufefew.ru/strik?utm_term=how+to+replace+ceiling+joists PDF link annotation
- https://cdn.sqhk.co/rozesivotix/ZhhN3Wy/powazizikifote.pdfIn PDF document text
- https://cdn.sqhk.co/vozeseseber/hPd2RGb/vunisagevawevubitazu.pdfIn PDF document text
- https://cdn.sqhk.co/rirakibugo/hvifhgQ/42743881043.pdfIn PDF document text
- https://cdn.sqhk.co/xurakipigub/fFiighk/yeezy_700_analog_legit_check.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://6131fb9f-3080-406c-a6ab-c4686b6a2f6f.filesusr.com/ugd/52be6f_77b27a7b2ea54d468a18272c3096828c.pdf?index=trueIn PDF document text
- https://2ddf8be6-044d-4f30-b6fd-16c032829cd6.filesusr.com/ugd/9827ea_5a1cf16961e14419a53af1115e6b263f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/3c65be1b-f0c1-4165-be52-2e505c59f527/irregular_verbs_english_grammar_exercises.pdfIn PDF document text
- https://0816b8db-db6e-4af9-a106-1766ff0f8d73.filesusr.com/ugd/06e6c8_53d019317df34c1e9cde51dfb5560204.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/5bf095ae-5dda-420b-abd9-c63bc5d3dd6b/faxonozorofuxa.pdfIn PDF document text
- https://s3.amazonaws.com/rewepalazamiso/free_android_recovery_software_for_windows.pdfIn PDF document text
- https://s3.amazonaws.com/mejados/asus_xonar_dgx_pci-e_5.1_audio_card.pdfIn PDF document text
- https://2f2ab42d-e0b4-4bd3-aa50-2430da1ff5fc.filesusr.com/ugd/eaf48f_2eeb082a9a2a4ee6aaeb69379255498a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/tikofaketonub/what_is_the_theme_of_fahrenheit_451_part_3.pdfIn PDF document text
- https://75ca6b5e-a470-4e0e-8004-b00a9f1721b4.filesusr.com/ugd/1e4819_9ba8ecac2b894eec8026b59bdd5c6e3a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/49762603-d5e9-46b5-b144-ce146905ad7a/robuxuzix.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5c400d09-6eef-4829-a595-24b3b5d95c86/71559748543.pdfIn PDF document text
- https://s3.amazonaws.com/mesotodimus/waec_chief_examiners_report_on_mathematics_2018.pdfIn PDF document text
- https://d4f4546a-a836-4b3d-8651-c56b89608eca.filesusr.com/ugd/3e9e83_bfd8c0b758ec4d1d92e91f1a3b0628f6.pdf?index=trueIn PDF document text
- https://662517ce-f374-4037-aebd-99b1dbe00103.filesusr.com/ugd/0c4177_d9a3b4141c3e45d7bb33d001ee507fd3.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/vanatul/takifupifinubofaniwu.pdfIn PDF document text
- https://2dc0326d-ac60-47d8-bf46-f2dc9d334570.filesusr.com/ugd/21b4a7_872b29868f684a5e9d6f02b114e2a09d.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/e2ed5200-898b-4d17-b143-c918afa4cde7/wojuwirasobanonesirewog.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f251.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF251 | 5228 bytes |
SHA-256: 1172441e5384bb10ae9be79c65629a6ec39f4a3c63f2b7a23bd2b304f1436b26 |
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font_01_sfnt_off0001043f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1043F | 10636 bytes |
SHA-256: ef2af88c26ba3f2142a55f91454aab07860ac17b2742489e2bdc2bf3dbfad0fb |
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