Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1dffa74c8d32f28…

MALICIOUS

PDF

68.2 KB Created: 2021-02-03 02:01:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 23f6cfa48cd484c891f4d4e1127fa26b SHA-1: 5c7d88218e8113de87438df07ff67896e87aef3d SHA-256: e1dffa74c8d32f280a61931b6201338bf7fd204de61acf06fbcc17f2bc50e495
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://leonvi.ru/aws?utm_term=anestesia+geral+veterinaria+pdf PDF link annotation
    • http://copyright-securityx.com/watch_jurassic_park_online_free1jkn0.pdfIn PDF document text
    • http://optamorem.com/6799263148hljlu.pdfIn PDF document text
    • http://banepudota.iblogger.org/33039916217.pdfIn PDF document text
    • http://copyright-help-report.com/misavulogokomufx6ypk.pdfIn PDF document text
    • http://springtea.space/18952174301ahpmd.pdfIn PDF document text
    • https://sunutefe.weebly.com/uploads/1/3/5/3/135350425/tofoju_zulakexupimed_jitifelafeto_xanelez.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/matogapibelifiv/arduino_software_for_android_phone.pdfIn PDF document text
    • http://gegapitigiz.rf.gd/31206631779.pdfIn PDF document text
    • http://lozekav.epizy.com/xutezolamotadibokapas.pdfIn PDF document text
    • http://vuruwabudakase.epizy.com/latest_aerobics_music_free.pdfIn PDF document text
    • http://vufobaratoja.epizy.com/19020661600.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/lagu_terdiam_sepi_nazia_marwiana_planetlagu.pdfIn PDF document text
    • http://xufizup.rf.gd/deadliest_tornadoes_nova_worksheet.pdfIn PDF document text
    • http://junulobexatini.rf.gd/jarivamakutoluwu.pdfIn PDF document text
    • http://tufukupetateto.epizy.com/sadlier_level_f_unit_11_synonyms_answers.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_off0000cec3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEC3 5256 bytes
SHA-256: 203ef82eff46ddac28523fd96b5aa67293d72ab5680417a1808e151fa1e19130
font_01_sfnt_off0000e0c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C0 10312 bytes
SHA-256: c0b145c99d444683834389f0c9219514194cc4c60d1456104b4280b593670782