Malicious PDF — malware analysis report

Static analysis result for SHA-256 849637f3954829fc…

MALICIOUS

PDF

73.6 KB Created: 2021-02-11 06:27:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 018901a58257628ba614740a4dcd2f71 SHA-1: 194a10188c242f3ddfc3bf0a49f1e6808ff65ce1 SHA-256: 849637f3954829fcdf76b1d824f4490eb93e1e4b03448361c1127f5299c16693
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://bologen.ru/aws?utm_term=administrative+management+theory+pdf PDF link annotation
    • http://shop-onlinediscount.xyz/gajijevedanusekhdg4r.pdfIn PDF document text
    • http://form-lnstagramcopyrightservices.com/android_bitmap_sample_sizekf48h.pdfIn PDF document text
    • http://counterman.ru/wenujivaruvagaretexamuwidon18z.pdfIn PDF document text
    • http://jumbochecker.com/kaku_causative_passive_formx1cqd.pdfIn PDF document text
    • https://letotanuvimipe.weebly.com/uploads/1/3/4/5/134598603/dezit-nojuwufeme-bobop.pdfIn PDF document text
    • http://idealica-official.website/romosaweg7iiq3.pdfIn PDF document text
    • http://idealica-official.website/totibinikufuwuresy6ke.pdfIn PDF document text
    • http://losmopaka.site/ditexukonumo9fi3f.pdfIn PDF document text
    • https://puxizabub.weebly.com/uploads/1/3/1/4/131406372/gugepugedanefirim.pdfIn PDF document text
    • http://podarokinsta365.site/sefogimotorolusejogorenosd8ew2.pdfIn PDF document text
    • http://fsfsfd.xyz/virus_news_today_scotland0x0rd.pdfIn PDF document text
    • https://wixinuwexe.weebly.com/uploads/1/3/0/7/130739185/xupudaliw.pdfIn PDF document text
    • https://lamalirigade.weebly.com/uploads/1/3/4/5/134595912/1153214b2dd3f9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wewonak.rf.gd/61489961808.pdfIn PDF document text
    • http://luxezovofi.epizy.com/nelewuwasis.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_off0000e64b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE64B 5572 bytes
SHA-256: 4cbbcef21a9ce7a82c752951ebf051e8c4a3c6e1ea93681bf46bfd1f12cd594d
font_01_sfnt_off0000f923.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF923 9564 bytes
SHA-256: 80ad76a22dfb8ad50f69606cb3a0e83ecc3fb10ec2f63e32f2ebb28ab7e40751