Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfe979c3f46d414c…

MALICIOUS

PDF

91.0 KB Created: 2021-05-17 02:17:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: c0e9258c1835e06c27738f26716aae81 SHA-1: 916d84f46f0472770482b4591589a117749ff0d0 SHA-256: dfe979c3f46d414c739ef06d6195348075e49b9d0042a1b9a536697e6bde6193
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI that points to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of an external URI within a PDF, coupled with high-risk heuristics, suggests an attempt to redirect the user to a malicious site, likely as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://leonvi.ru/strik?utm_term=don+juan+full+movie+1926 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4393016/normal_5fc8294d8e0c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456389/normal_5fe7aede52493.pdfIn PDF document text
    • http://semowatuk.iblogger.org/xuregavulukuvokivot.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415525/normal_5fcb69578d5e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483839/normal_600e2239cd16a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491687/normal_602e394e582aa.pdfIn PDF document text
    • http://demunanenika.iblogger.org/gijeguxup.pdfIn PDF document text
    • http://dofagagisefukiv.22web.org/blood_cholesterol_test_procedure.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371808/normal_606b45b6be7b5.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://s3.amazonaws.com/bajuse/9685013713.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/67509337060.pdfIn PDF document text
    • https://71b4061d-0fbe-47a8-a671-08758978b022.filesusr.com/ugd/0216f2_7eb86a751acc4a05acb4328278d56654.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e71e4f2-831c-424f-a001-f5992f899689/kitchenaid_coffee_grinder_spare_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/bureau_informatique_design_mtal_et_verre_adonie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1ccb709-617b-4fba-a10b-58a2bc3fe09f/does_my_head_look_big_in_this_audiobook.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/difezuk.pdfIn PDF document text
    • https://2aa89031-56ac-4de1-b828-aabe99840ec8.filesusr.com/ugd/cf14a4_1c8529cb08be4169975e4b266bb6bf54.pdf?index=trueIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000101aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101AA 5072 bytes
SHA-256: d30df2b5d3cd90cd049c9ae5b7d36618bb0a32cc7d736aaa237a75ba49391b06
font_01_sfnt_off000112ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112EA 10756 bytes
SHA-256: 6e394327fdd8c2ddf12d4102cc8d9e094c81a4ea7432e4cbf7070d185665eb37
font_02_sfnt_off00013812.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13812 16868 bytes
SHA-256: 9e25693ad5939f33aa38d7c70534ba8398dbf2b4d7918c7216a986bb7e813b3e
font_03_sfnt_off00015000.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15000 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

Open this report in the interactive analyzer, or submit your own file for analysis.