Malicious PDF — malware analysis report

Static analysis result for SHA-256 900e3c7a6ddc3fe4…

MALICIOUS

PDF

67.2 KB Created: 2021-03-03 03:37:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5fec16540ebd90a314f7d5fe65e906bb SHA-1: 39a908bdb92ae806da8e742a30a773675bd87ee0 SHA-256: 900e3c7a6ddc3fe49d420b7d6629076c002a6e7302c64ef6403b73fac79cae5a
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://soxebez.ru/wix?keyword=strike+heroes+2+weebly PDF link annotation
    • http://snapchat-alert.com/wavumoxibopufukifegmm8ie.pdfIn PDF document text
    • https://gisunada.weebly.com/uploads/1/3/1/4/131409009/vaxut_pajolififukinuj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403406/normal_6011f42dbe0af.pdfIn PDF document text
    • https://nevomunetis.weebly.com/uploads/1/3/0/7/130740414/dugarobuwen-piforogafubi-tumilogigeri.pdfIn PDF document text
    • http://fsfsfd.xyz/long_underwear_onesieemmif.pdfIn PDF document text
    • https://cdn.sqhk.co/zijikunu/ffyQjdg/94724426628.pdfIn PDF document text
    • http://zugugalepew.mypressonline.com/zozisatexijobegubijuboxon.pdfIn PDF document text
    • http://tafiwon.mywebcommunity.org/dell_optiplex_390_ram_capacity.pdfIn PDF document text
    • https://cdn.sqhk.co/fipimomozuk/ggjAdja/amazon_seller_central_europe_help.pdfIn PDF document text
    • http://accueilcmb.com/22911097088e79cq.pdfIn PDF document text
    • https://jazowamiwig.weebly.com/uploads/1/3/2/7/132740249/4bfae893bde.pdfIn PDF document text
    • http://vedice.ru/the_end_of_the_f_world_quotes8ynut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392444/normal_6033fbe5810ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413370/normal_60239c22a5def.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418191/normal_60043051afc30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428054/normal_60260d9655769.pdfIn PDF document text
    • https://wudigunufite.weebly.com/uploads/1/3/4/6/134611509/a9e93bf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://panexorumilogim.myartsonline.com/1508640619.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_off0000cd00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD00 5196 bytes
SHA-256: 8b2091d645dd46e7bad02e9fd6daf1ea81b96e41757d09c05095f3bf5a91854d
font_01_sfnt_off0000dec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEC2 9636 bytes
SHA-256: 3bef0be2523dbe6b45c724f30ec873987275d343046f2e72797a686b5c749602