Malicious PDF — malware analysis report

Static analysis result for SHA-256 704afe059ef6b99f…

MALICIOUS

PDF

79.6 KB Created: 2021-01-29 05:49:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 56b3e5b650461ca709419100d882178a SHA-1: a3a7cae874d0a7f0f5543d4d624097c70e121e6a SHA-256: 704afe059ef6b99f9f6c9fc05dd54258847d2a422c5a7e283e0df48d77b07ce1
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that impersonates a government entity to trick the user into clicking it. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of external URIs points to a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/123?utm_term=policia+puerto+rico+antecedentes+penales PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4497359/normal_6013595584324.pdfIn PDF document text
    • http://dekagexagupeje.iblogger.org/division_worksheets_grade_3_common_core.pdfIn PDF document text
    • http://kameregeperiwaz.22web.org/tiselanibebek.pdfIn PDF document text
    • https://cdn.sqhk.co/sewetotab/jdAsBCf/kolawomazugibikuwa.pdfIn PDF document text
    • http://itsnat.space/property_development_business_plan_south_africaslgcy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370054/normal_6005bd56d6343.pdfIn PDF document text
    • https://cdn.sqhk.co/lilapanorup/e3hbQgd/kabusixevoritob.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451018/normal_5fc5e07e494af.pdfIn PDF document text
    • http://healthyforczechrepublic.site/32740243265skxq1.pdfIn PDF document text
    • http://magnetfix.store/ninja_samurai_revenge_20207158m.pdfIn PDF document text
    • https://cdn.sqhk.co/daxozazon/hfmgghh/66248489001.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/vukumesoj/payment_terms_in_international_trade.pdfIn PDF document text
    • http://gegokuberil.rf.gd/72756480389.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/azure_information_protection_scanner_on_premise.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/restaurants_annecy_guide_michelin.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/jimanibotijukoner.pdfIn PDF document text
    • https://s3.amazonaws.com/fizufapu/39041115817.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/import_icloud_backup_to_android.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/hypertonic_saline_3_guidelines.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_off0000f8b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B7 5068 bytes
SHA-256: d68c219606e393379e25dca69d205fd2e9e66735767024568772c8f9d296f0b6
font_01_sfnt_off000109fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109FE 11496 bytes
SHA-256: e1aa2505081b31ab13c82291799e082f0d628c936b26613f87a9e9f624b5ac9b

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