Malicious PDF — malware analysis report

Static analysis result for SHA-256 94953d4d9a0b7309…

MALICIOUS

PDF

96.2 KB Created: 2021-05-03 19:01:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: eb9992a60249378263f77ae9600f78b5 SHA-1: 8b39810580125aab19eb787fae14eeeebeaea589 SHA-256: 94953d4d9a0b73093273fe078c2193126738e95e52a02e0eb5a8ac538dc3574a
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs to a suspicious domain, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site, potentially leading to further compromise.

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://baarspo.ru/strik?utm_term=mossberg+500+12+gauge+stock+bolt PDF link annotation
    • https://cdn.sqhk.co/xubipoxeguza/bW8gdig/business_administration_accounting_degree_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489992/normal_6048f206cb552.pdfIn PDF document text
    • https://cdn.sqhk.co/podadoxafa/WjeibXx/two_dimensional_shapes.pdfIn PDF document text
    • https://cdn.sqhk.co/vefapatape/ibijzjd/44120021881.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414353/normal_5ffa71db3480d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366309/normal_5ff14b4ee4ce8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412763/normal_600c680644580.pdfIn PDF document text
    • https://cdn.sqhk.co/dovawowo/iChggFS/97498493845.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/tawosutosuxi/government_interview_questions_and_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0d032dd-e1f7-4755-9460-6f494e73eddb/jijugiluni.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/sodusugabugorasemawem.pdfIn PDF document text
    • https://s3.amazonaws.com/jigezilor/kukom.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/free_christmas_templates_for_flyers.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/centerpoint_3-9x32_scope_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/285b5115-d039-47c4-ab91-b80e10b42a5f/80764903460.pdfIn PDF document text
    • https://s3.amazonaws.com/xofalepelala/werumojabanipivajizak.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/is_there_a_season_2_of_war_of_the_worlds_on_sbs.pdfIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/how_to_write_a_great_career_development_plan_for_yourself.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/free_opera_mini_browser_beta.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbde1c72-0475-4f68-b634-c47082425b95/35840586925.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/70603139227.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85133765-6334-4279-bdfc-c1e3cf73fe0f/sukemovasumukatugosimupi.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.

FilenameKindSourceSize
font_00_sfnt_off000139ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139EA 5628 bytes
SHA-256: 3e3896b2b4995d21e87106a64be9b79d9ad0f17d17cb7bd167c2429c35dadb94
font_01_sfnt_off00014d3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14D3B 11208 bytes
SHA-256: 2a44981afce203feec6b56b08f6c2f90c641fd54468e31722281cf3f3e4a240e