Malicious PDF — malware analysis report

Static analysis result for SHA-256 c72cf0fb40d22449…

MALICIOUS

PDF

71.4 KB Created: 2021-02-18 07:39:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c65b8f1cf3d47a27efe4ebc0ea448e93 SHA-1: e077387c30eec7209a94d7bf2d4ab7fa6f02b975 SHA-256: c72cf0fb40d224497ed2d07f21681a51679bd865bf80808d8d88e82cac68d47c
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/wix?keyword=homelite+xl+chainsaw+owners+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4495988/normal_5fddca5a6c59a.pdfIn PDF document text
    • http://testrun.ru/xovolikesna8x.pdfIn PDF document text
    • https://wunogalabapa.weebly.com/uploads/1/3/4/6/134603674/b060f.pdfIn PDF document text
    • https://xuvelufuxilo.weebly.com/uploads/1/3/5/3/135387868/lafit.pdfIn PDF document text
    • https://silajawa.weebly.com/uploads/1/3/4/3/134339193/2400729.pdfIn PDF document text
    • http://beautytopshop.site/jukimuletupojofa99slq.pdfIn PDF document text
    • http://pannochki-art.com/86224881166hipeh.pdfIn PDF document text
    • https://cdn.sqhk.co/kigaratak/jfRicBg/68421906340.pdfIn PDF document text
    • https://tadinitalu.weebly.com/uploads/1/3/4/7/134744808/1617698.pdfIn PDF document text
    • http://govusinixarimi.iblogger.org/anime_love_couple_wallpaper.pdfIn PDF document text
    • https://cdn.sqhk.co/numorolele/pDhdNqM/84386297117.pdfIn PDF document text
    • http://momentikshop.space/durga_saptashati_book_in_englisho0q9d.pdfIn PDF document text
    • https://cdn.sqhk.co/mokevesin/zxeZxid/30333492129.pdfIn PDF document text
    • https://cdn.sqhk.co/talexadu/Bjelro3/chocolate_easy_recipes_no_bake.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fumojaw.epizy.com/natifulano.pdfIn PDF document text
    • http://zulesubepire.rf.gd/incremento_de_masa_muscular.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_off0000cbed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBED 5044 bytes
SHA-256: 78d81c454464510a0d627ca3e7aed72df11e2543b64b8a197956c75bc57caf79
font_01_sfnt_off0000dcf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF6 10972 bytes
SHA-256: ffce37e7d343f7e73912d56adf7e1fea952548dafb514b8803d0dac0d7da02c2
font_02_sfnt_off00010252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10252 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f