Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bbacc08c9179705…

MALICIOUS

PDF

69.4 KB Created: 2021-02-11 23:43:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 23534fd7cb18d611f689eddee808e10a SHA-1: effedf1396e2c9dd9bb72d9dadeba06f5946748e SHA-256: 2bbacc08c91797055f7042b1c43df01289038f83181f3298a080b40750e6d005
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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/wix?keyword=gazelle+exercise+machine+manual In PDF document text
    • https://lawagupavuraxap.weebly.com/uploads/1/3/4/6/134616311/rusotubobaten_tovarozobaxa.pdfIn PDF document text
    • https://cdn.sqhk.co/duzixulok/bJ4gihd/bitop.pdfIn PDF document text
    • http://ijmalan.xyz/android_floating_action_button_menu_exampleirt0s.pdfIn PDF document text
    • http://cheapestshop.xyz/30252229915w61as.pdfIn PDF document text
    • https://givolejemaxo.weebly.com/uploads/1/3/5/3/135345859/9226c37d7df0.pdfIn PDF document text
    • https://gijowazav.weebly.com/uploads/1/3/4/0/134097260/ab2f16e170.pdfIn PDF document text
    • https://zubefexer.weebly.com/uploads/1/3/1/6/131606337/e44403.pdfIn PDF document text
    • http://kinorio5.xyz/1640078702fgdi6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fuvuxeren.epizy.com/7242940723.pdfIn PDF document text
    • http://litezopufesox.epizy.com/rufowukuwanodusepo.pdfIn PDF document text
    • http://nuvafakidem.rf.gd/entropia_universe_beginner_s_guide_2018.pdfIn PDF document text
    • http://fapomotomojopog.epizy.com/34214633345.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c25b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC25B 4292 bytes
SHA-256: 0003d7b0368db4b651d40cffd24f4c442567128bfedff5eb61c1142126c080c5
font_01_sfnt_off0000d182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD182 5188 bytes
SHA-256: 006f860e8f17f8487e0f539f04fce69f424efa49a5e53ef55aaef6dd58f4118a
font_02_sfnt_off0000e309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE309 11060 bytes
SHA-256: 84e6c891d3c6360bd93b606752e04dfdfd6610bd8518c800c4b03a121c8584a3