Malicious PDF — malware analysis report

Static analysis result for SHA-256 49115cf6575f9fe3…

MALICIOUS

PDF

83.8 KB Created: 2021-02-03 12:11:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 26705b07c1538cbc417f0b747138ac4e SHA-1: 3a59c107dcea0f217a84c714104ec1506f68a843 SHA-256: 49115cf6575f9fe317045575d4d2f45c20f7888c4bc3be22d6c43972df1e4700
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://baarspo.ru/aws?utm_term=format+article+english+spm PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382187/normal_5fea0671cb7d3.pdfIn PDF document text
    • http://wordwild-store.com/audio_amplifier_circuit_diagram_using_transistor35ws3.pdfIn PDF document text
    • http://mybestchan.online/120215317336opts.pdfIn PDF document text
    • http://grigolia-studio.ru/empire_warriors_td_guide_level_5_hellsjt68.pdfIn PDF document text
    • https://nokogijesa.weebly.com/uploads/1/3/1/4/131452879/vazavepegapeku.pdfIn PDF document text
    • http://samettemiz.xyz/61773716367y9he6.pdfIn PDF document text
    • http://fresh-ita.fun/631953019111x384.pdfIn PDF document text
    • https://dakufosaxem.weebly.com/uploads/1/3/4/7/134771611/eeff27a.pdfIn PDF document text
    • http://b4shop.icu/riders_republic_ps5_upgradermisv.pdfIn PDF document text
    • https://runumoviw.weebly.com/uploads/1/3/4/8/134854062/josuwe_piladirejiveri_jawitif.pdfIn PDF document text
    • http://boxberry-24.cc/405494466041a597.pdfIn PDF document text
    • https://kuvixajixi.weebly.com/uploads/1/3/1/6/131637850/6039723.pdfIn PDF document text
    • http://megantv.site/lsbf_acca_f9_course_notesw8m3a.pdfIn PDF document text
    • http://naturapple.space/mubimevixaaw3h.pdfIn PDF document text
    • http://tamakar.xyz/3643804985h7bo1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00010c2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C2A 5300 bytes
SHA-256: 688350466dec21be442a8c1aafbd39e9f341de041c72c2cdded4b9f7f14f3bc0
font_01_sfnt_off00011e05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E05 10740 bytes
SHA-256: 83be01266280361cfe4e5724fd57c193f5e5aff0fcf3f4002748f4958c6bd49f