PDF malware analysis — malicious · dfed7f32ee4c77d9

MALICIOUS

PDF

86.1 KB Created: 2021-05-19 16:51:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25

MD5: 9e57f1ffc16bdd91a9507c5874650b18 SHA-1: 3f3570635dc81b42bae216a12c70d5114c80b65b SHA-256: dfed7f32ee4c77d96b738267830150d78e626cad430b1ac93977c73662afb7b8

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that leads to a phishing page disguised as information about cast iron pans. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest a phishing lure, likely leveraging embedded JavaScript for redirection or further exploitation.

Machine Learning

Nyx PDF Classifier malicious score 0.9951

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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.
Embedded URL info EMBEDDED_URL

One 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/strik?utm_term=how+to+identify+old+cast+iron+pans PDF link annotation
- https://cdn-cms.f-static.net/uploads/4452845/normal_600f159d700c1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444092/normal_6054bd6ad0c49.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379602/normal_5fdd99db31f39.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393791/normal_602db0c6ce616.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452612/normal_5fd9d62c87c57.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4403533/normal_5fd079764f5af.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4368219/normal_5fcbf194b4339.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417834/normal_5fcd3c8a35074.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389805/normal_60378818a88b7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385213/normal_603b8a4fb9941.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/mujesogi/nugizuvixu.pdfIn PDF document text
- https://s3.amazonaws.com/werowibovezoje/eso_blacksmithing_quick_leveling_guide.pdfIn PDF document text
- https://s3.amazonaws.com/perurulexi/bominejoduredesopew.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/acce4077-b884-4d2e-a8f8-f0a57396a6f5/93778098217.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2e7c2c86-c3ef-433e-a583-55b646abea54/how_to_use_cognitive_behavioral_therapy_on_yourself.pdfIn PDF document text
- https://s3.amazonaws.com/luworizesupox/98162357834.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1a063966-608d-4651-8c61-789d93f20694/samsung_un32eh5000f_wall_mount.pdfIn PDF document text
- https://s3.amazonaws.com/fewifuwu/loxagigimafutapedug.pdfIn PDF document text
- https://s3.amazonaws.com/vuforewebub/employee_retention_mba_project_report_doc.pdfIn PDF document text
- https://s3.amazonaws.com/sazixipame/18269194067.pdfIn PDF document text
- https://s3.amazonaws.com/muvemasoxaji/jeledower.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/758df136-961b-4778-a589-34bd8a8cc074/honda_gcv160_pressure_washer_pump_diagram.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c22693a5-21f1-44f9-bf57-3a3f9e87177d/hay_poder_en_el_nombre_de_jesus_en_la_biblia.pdfIn PDF document text
- https://s3.amazonaws.com/popisiburewixuj/33341145102.pdfIn PDF document text
- https://s3.amazonaws.com/libosokune/2012_hyundai_sonata_hybrid_engine.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/caef708e-af41-4203-aab3-8b5749d1bed4/gisozanawonizu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6ebfebb4-f687-4bee-931e-6b49179f0cb8/multiplying_decimals_video_youtube.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ff11.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFF11	5304 bytes
SHA-256: `4b4e53aceaab6b05cc3d0ee9e207cf34b232599c722c76ae8d3d4337a4ee8715`
`font_01_sfnt_off00011146.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11146	10492 bytes
SHA-256: `22eb43f9318c1205ffd2518b0a487062e187320d78a6da986047c26a8ceb6be4`
`font_02_sfnt_off00013528.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13528	16184 bytes
SHA-256: `59bd9faf73b945fa4dd601516dbb9186deacf479735410a520c5b6c7f94add4f`

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