Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0e55629307e7c06…

MALICIOUS

PDF

63.7 KB Created: 2021-02-27 22:04:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: aae9f9f7f3404686d2e896d63c8fc727 SHA-1: 4f9759a4da23bc6ea3fd5a3ae9acd7254203e5f9 SHA-256: b0e55629307e7c06283ef23d0b9dcec18634c8d5d59ec6c34c984d36de949257
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://nipisod.ru/wix?keyword=boat+crew+seamanship+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374708/normal_60370e9414ea0.pdfIn PDF document text
    • https://cdn.sqhk.co/lolajelor/d9geujj/97033378177.pdfIn PDF document text
    • http://arendaavto.taxi/coordination_chemistry_joan_ribas_gispertgxsg6.pdfIn PDF document text
    • http://bettermoneytips.com/bajupinewiloroberarobo89re7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372361/normal_60359a9b10cf5.pdfIn PDF document text
    • http://visionnew.xyz/joxiwadedusabagxsj5.pdfIn PDF document text
    • http://kemytbok.xyz/423588344601sqfk.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/jjhgguo/46570122976.pdfIn PDF document text
    • https://cdn.sqhk.co/jojikoxazew/iuji2jd/7533866827.pdfIn PDF document text
    • https://cdn.sqhk.co/wumidimux/nTugehj/gumufesavijaxujoludirexi.pdfIn PDF document text
    • https://cdn.sqhk.co/vozevadijut/jdjcEXp/71836716833.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/fuzafuzeruwit/chevy_traverse_2018_manual.pdfIn PDF document text
    • http://jejivosijej.rf.gd/48435312440.pdfIn PDF document text
    • http://gexagulajiv.rf.gd/lidavipige.pdfIn PDF document text
    • https://s3.amazonaws.com/jupudizadid/losozirovaxoropegetofid.pdfIn PDF document text
    • http://vetuvadoxawiton.epizy.com/superlative_worksheet_with_pictures.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_off0000be3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE3E 5312 bytes
SHA-256: f6b6d85f4ef270a2e2c8b679e99df1b0275b583a4eba5eef578cac5f7d674a68
font_01_sfnt_off0000d038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD038 9928 bytes
SHA-256: 43b72a7627f41f5d51b291135e48a62cc5a81b067698d8935178185c1fe2c1b8

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