Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f9fe64a917ea0e5…

MALICIOUS

PDF

71.8 KB Created: 2021-02-11 00:06:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 4c7624a94252ef84ac7d32774a34107a SHA-1: 4b2676e01534ebceab50d6f72a939ef6409a0203 SHA-256: 6f9fe64a917ea0e580ae8006f84191ab607dbb9ab412edd000a24290373cd24b
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/123?utm_term=7+things+miley+cyrus+chords In PDF document text
    • http://itprod.space/coc_mod_apk_unlimited_moneyy2s59.pdfIn PDF document text
    • http://kleomaften.online/dixuzasivolovavpn1ap.pdfIn PDF document text
    • https://fawurefo.weebly.com/uploads/1/3/4/4/134441885/35f20d31118a.pdfIn PDF document text
    • http://didezidise.22web.org/pamefarexis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387919/normal_6022a03c5acad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489977/normal_601e72bc54b89.pdfIn PDF document text
    • https://fedofiri.weebly.com/uploads/1/3/2/6/132681193/2149305.pdfIn PDF document text
    • http://steelsho1.club/muwegiwurartwfat.pdfIn PDF document text
    • http://raisinshub.club/87165869156lrfnr.pdfIn PDF document text
    • http://zikapipumimapo.22web.org/97142288911.pdfIn PDF document text
    • http://korecos.ru/nintendo_switch_lite_color_optionsqj8n2.pdfIn PDF document text
    • https://nalivugubogepa.weebly.com/uploads/1/3/0/9/130969323/fa53e5ab78c7060.pdfIn PDF document text
    • http://biomanix.best/jeep_grand_cherokee_2012_owners_manualytfk9.pdfIn PDF document text
    • https://lomizagufefeg.weebly.com/uploads/1/3/4/0/134096038/86acfa6196.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zifawikixeliba.epizy.com/29526191441.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_off0000dd0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD0D 5228 bytes
SHA-256: bf5afdecdcce051075d7976a66c954125a4e8d734a66fed3c539b851cd2150b7
font_01_sfnt_off0000eebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEBD 10556 bytes
SHA-256: c5f5dec9345f3a9a57883924590ed0b0d06cca02a0d9c388e1deb95da9c9c18c