Malicious PDF — malware analysis report

Static analysis result for SHA-256 9009642a9579d36d…

MALICIOUS

PDF

75.4 KB Created: 2021-04-09 23:58:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 3420f0c0f95cd707e87fd6baf1fb0f0a SHA-1: 9f5242b707458f0e3ed30f2e0045d0320780643e SHA-256: 9009642a9579d36d7cdd3d8e4153fa812be90e6fdba5fbc9c9e7a869f28098d9
96 Risk Score

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 0.9998

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://nipisod.ru/strik?utm_term=knights+of+the+old+republic+2+xbox+one+review PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4419827/normal_6067daa70a395.pdfIn PDF document text
    • http://oficialshoes.site/488378735852o6jd.pdfIn PDF document text
    • http://lnstagramverifycentre.com/merofeb1614b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403824/normal_602178af6426a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422909/normal_60427ed43782e.pdfIn PDF document text
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.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/lovomijelun/fishing_report_lake_of_the_ozarks.pdfIn PDF document text
    • http://gefuxexo.epizy.com/chemistry_puns_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/dobikasukavu/93461332391.pdfIn PDF document text
    • http://jenenulufem.rf.gd/zobesarufobomazajeludovak.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/1112522549.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/bibetezisu.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/carnatic_music_ringtone_free.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/bajaj_allianz_health_insurance_claim_form.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/belkin_n600_modem_router_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/dirt_bike_repairs_near_me.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_off0000e586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE586 5668 bytes
SHA-256: d75554f193db656ea85722a04c65b31b7e3a4e9dff7d402265a124e702a85787
font_01_sfnt_off0000f8e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8E8 11732 bytes
SHA-256: 6b6ceb77c78951b705f984bd8f8bfe2cfde33dec21719241adea6881b1ad91fd