Malicious PDF — malware analysis report

Static analysis result for SHA-256 c05f5e558b462403…

MALICIOUS

PDF

74.0 KB Created: 2021-03-01 19:01:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 48c7c3dc0c6c53bba0c8afff0bb5b63d SHA-1: 7d9dabfaa2915eef61985029bf5b7fda1360ebef SHA-256: c05f5e558b4624031ab2d562bd44dec79334bb3817eb3583dd30c4074fca98fb
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/award?keyword=oster+dehydrator+recipes PDF link annotation
    • https://gisunada.weebly.com/uploads/1/3/1/4/131409009/3961960.pdfIn PDF document text
    • http://lg-copyrightforms.com/desixawozadikupnodgd.pdfIn PDF document text
    • https://buruwezixefekiw.weebly.com/uploads/1/3/0/7/130738548/ladifesixamanapida.pdfIn PDF document text
    • https://dogenirifalalu.weebly.com/uploads/1/3/0/7/130775866/bifebawev.pdfIn PDF document text
    • http://vewosanexifusip.22web.org/tezaripodemun.pdfIn PDF document text
    • http://conicppjry.bid/muchas_vidas_muchos_maestros_peliculsyfi6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487424/normal_6034a1fc14505.pdfIn PDF document text
    • http://ponopawux.iblogger.org/five_nights_at_freddys_2_game_free_unblocked.pdfIn PDF document text
    • https://viduxetejogat.weebly.com/uploads/1/3/4/6/134600114/tumuwukoj-voralixijux.pdfIn PDF document text
    • http://greatmasters.biz/gebigarufurabamapo7bcqg.pdfIn PDF document text
    • http://groshyk.site/bahubali_song_mp4_tinyjukem9obd.pdfIn PDF document text
    • http://predouche.xyz/gefewokovobunolijivijunusvq7e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502870/normal_60346bcf02571.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://givobodetaruzo.epizy.com/dymo_labelwriter_450_turbo_driver.pdfIn PDF document text
    • http://kitomov.epizy.com/common_centroid_layout_resistor.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_off0000e5fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5FC 5260 bytes
SHA-256: dd9951d78a7b43212d0936dc2bc9d31e8e611b7f29c6751e207c21a6311c481e
font_01_sfnt_off0000f7d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D8 10460 bytes
SHA-256: f840354ac9e65a52637e4b815e6ea66ce0b49a50ffb198e4407b411c2f4c3cdb