Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba2afb505b2a52b3…

MALICIOUS

PDF

126.3 KB Created: 2021-03-25 17:25:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 61b1a4563515b29f27bc08d869ea275f SHA-1: 1529dde12f78f8629167cc71667d12fcd443e3bd SHA-256: ba2afb505b2a52b3b5990094ed08803005bfaab8d3f72b45319de57688b85826
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/strik?utm_term=golden+menorah+for+the+third+temple PDF link annotation
    • http://ludshop.xyz/sobovijafavuxezalib78k5v.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370764/normal_602ebd1a38d1b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370529/normal_60388ae1125b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481676/normal_603dc63b45d13.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386094/normal_5ff758c4e4f25.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489415/normal_601feea05d2b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379612/normal_604bc58b7887f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470537/normal_60027524d4d26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385214/normal_6057bbf82433d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416128/normal_603079841f3b2.pdfIn PDF document text
    • http://hisgohar.site/429651709537qzpa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476429/normal_60400d39d557b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369766/normal_5fcaccadb82d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426080/normal_5ffb3384ad64b.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/penale/the_illustrated_dream_dictionary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/567b957c-1938-43c0-a698-1ac167d18bed/fuvikezafinub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a94d2b0-cb73-4412-bf64-5da6c71c26cd/sears_dgs_6500_tractor_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7ced62e-2c8d-4ca5-8b6e-69caaa06e346/how_to_prepare_for_a_cultural_fit_interview.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/915163495.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/77035784048.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/jafolup.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.

FilenameKindSourceSize
font_00_sfnt_off0001a799.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A799 4924 bytes
SHA-256: 85116d5a4f921556407b0b879045e167b22547655dd0b2fa2e4c9ff958b4d8c7
font_01_sfnt_off0001b81f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B81F 11048 bytes
SHA-256: b1c6b23c5583a8ffe49cdef51697166c062b858362a65012892ccd1074f814fc
font_02_sfnt_off0001dd66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DD66 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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