MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous embedded URLs, with one prominent URL pointing to 'jacksth.ru' that is likely part of the attack chain. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests the PDF is designed to host many links, potentially for SEO poisoning or to distribute malware through a link farm. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics strongly suggest a malicious intent to redirect the user to a compromised or malicious site.
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 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://jacksth.ru/123?utm_term=ahold+delhaize+annual+report+2019 PDF link annotation
- https://pasugewu.weebly.com/uploads/1/3/1/0/131071180/85371136.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411490/normal_6041393099b47.pdfIn PDF document text
- https://lopolovugafi.weebly.com/uploads/1/3/4/1/134109017/9414923.pdfIn PDF document text
- http://nogurufegu.mygamesonline.org/volukixedofuvuxoja.pdfIn PDF document text
- https://dubuvolikumo.weebly.com/uploads/1/3/4/0/134012832/5f0d9ba2f5052.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387050/normal_6011de3160ece.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4448116/normal_6000dd4299393.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409621/normal_602c515fa98b7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427519/normal_60210cb421088.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
- http://jigisasamupor.onlinewebshop.net/nilokukinobajekabanexefe.pdfIn PDF document text
- http://kogotiru.myartsonline.com/risk_factors_of_diabetes_type_2.pdfIn PDF document text
- https://s3.amazonaws.com/suxuzubojut/dapazapasuminaw.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c2c95d98-4577-49c9-89fe-5d92dd3cd1aa/61220581454.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8fc69d74-4475-4b48-adbb-e3c66ae7235a/ponejewibivavi.pdfIn PDF document text
- https://s3.amazonaws.com/bopuxosavubare/what_does_grounded_theory_mean_in_spanish.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b313ff5b-c01b-4afd-925d-595232e5875c/132429484.pdfIn PDF document text
- http://finesegugumemo.epizy.com/79473650096.pdfIn PDF document text
- https://s3.amazonaws.com/mutirexa/spider_man_ps4_dlc_issues.pdfIn PDF document text
- http://bijamujijupife.epizy.com/95742414683.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/de3c2ec8-beae-4baf-90e4-f14ac4f044a3/wodiruribase.pdfIn PDF document text
- https://s3.amazonaws.com/fosalizuzu/advanced_cost_accounting_syllabus.pdfIn PDF document text
- http://robinovedibepo.epizy.com/chori_chori_film_video_song.pdfIn PDF document text
- http://lanosebezazov.onlinewebshop.net/how_to_write_a_nonprofit_grant.pdfIn PDF document text
- http://magotabitujotu.rf.gd/what_ink_does_hp_envy_4500_use.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_off0000db71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB71 | 5272 bytes |
SHA-256: 77cc3c1eab1af533975a2945dcf470d10777f06306653e66a1ad72610960d960 |
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font_01_sfnt_off0000ed55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED55 | 10852 bytes |
SHA-256: 0cce2a0dba70c4d4edd0ec20f4289978d4617fbb917f9585701d4cdce9a61f53 |
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font_02_sfnt_off000111dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111DD | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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