Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfe3ff00f4166523…

MALICIOUS

PDF

72.3 KB Created: 2021-02-18 07:00:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f6582f7c7fd1af513f1182fbdd9e2ce9 SHA-1: ea3605dd3f75aa100687a3025b336804b7fb9044 SHA-256: cfe3ff00f4166523a9b6fe3837f99291d8b21e381069f98d470504b3becbce18
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=flavour+bible+pdf PDF link annotation
    • https://gevivefopunuxaf.weebly.com/uploads/1/3/4/3/134331765/a7daf71.pdfIn PDF document text
    • http://kovokowem.iblogger.org/culver_s_application.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495037/normal_5fdc45a1f1144.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426541/normal_602dd6772c67d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494433/normal_5fee9cdd522bc.pdfIn PDF document text
    • https://nodarato.weebly.com/uploads/1/3/4/4/134487471/xageloza_jogata.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375690/normal_5feccc913046e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370090/normal_5fc67f1d2f315.pdfIn PDF document text
    • http://jarizodej.22web.org/fusiliers_marins_reportage.pdfIn PDF document text
    • http://nepifenimet.iblogger.org/bangla_song_asif_mp4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ramawotinejog.epizy.com/cardiomyopathy_classification.pdfIn PDF document text
    • http://sovizurimi.rf.gd/josajurakize.pdfIn PDF document text
    • http://dukazel.rf.gd/mokadumonafiwaxibotegidut.pdfIn PDF document text
    • http://pumiwusidura.epizy.com/banagit.pdfIn PDF document text
    • http://ximewilavabav.epizy.com/dunkin_donuts_beyond_meat_sausage_nutrition_facts.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_off0000defa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEFA 5012 bytes
SHA-256: d1d1677f6087d1f4f52afb1fb88e7a194e8b0dea2a7450fb9cad5ab7f3506ff4
font_01_sfnt_off0000f01b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF01B 10720 bytes
SHA-256: 377aec11c79d9fd849edc702132271a8ea5dde0008a54b23874131d4ed522f1b