Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6e382808d8c4272…

MALICIOUS

PDF

71.4 KB Created: 2021-02-06 06:29:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 84880e28d90889934397f6fb636c4ead SHA-1: 2131d60c1c467f795ba8b1a201ebcff408f9883c SHA-256: c6e382808d8c42728d8df92b154ac27bbb08f5809a7b498e03de6fa7abd95d20
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jacksth.ru/aws?utm_term=bleacher+report+soccer+games PDF link annotation
    • http://busibear.com/minamemumakagumidiziz9run0.pdfIn PDF document text
    • http://spencermcman.us/tomodachi_collection_english_romlt0vy.pdfIn PDF document text
    • https://cdn.sqhk.co/tiviluluje/1xgitgj/epson_moviemate_62_lcd_projector_model_h411a.pdfIn PDF document text
    • https://cdn.sqhk.co/jawubibegeba/M0jhgdg/31782605276.pdfIn PDF document text
    • http://help-service-support.com/94982069100xvlzs.pdfIn PDF document text
    • http://netewe8.xyz/french_grammarsrd3d.pdfIn PDF document text
    • https://febefadu.weebly.com/uploads/1/3/1/4/131453100/soxupibevadewosizeno.pdfIn PDF document text
    • https://bileravufal.weebly.com/uploads/1/3/4/7/134749654/fisoligotefativ.pdfIn PDF document text
    • https://dusonomikeka.weebly.com/uploads/1/3/2/6/132695238/4068747.pdfIn PDF document text
    • https://motovonesavot.weebly.com/uploads/1/3/4/6/134690882/e27aeab3260573.pdfIn PDF document text
    • https://wedezetepeb.weebly.com/uploads/1/3/4/5/134528952/caec5b22562b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370285/normal_6004ebafae476.pdfIn PDF document text
    • https://cdn.sqhk.co/naxisedomak/cAheghv/tebiw.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/latufenaw/caterham_high_school_sixth_form.pdfIn PDF document text
    • https://s3.amazonaws.com/bajuse/hoe_bestanden_samenvoegen_mac.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_off0000da0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA0E 5396 bytes
SHA-256: 2aa7016b17b1aee2d8d67120bd7c6c376926951b1345ef2ade307d62fb8d8dcd
font_01_sfnt_off0000ec40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC40 10776 bytes
SHA-256: c1aa526c199ac82053f639f910cbe4912ec3f04c8cf81feb812b2d9e019cb3e5