Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ed14e5d4b4dc037…

MALICIOUS

PDF

68.3 KB Created: 2021-02-18 10:44:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7baf4c81c59c880391c8f69cae63cc0e SHA-1: 6039e5b47bf3b7176da7cdf085319dfc0efb61c1 SHA-256: 1ed14e5d4b4dc037449965f83371c62e1e8b7384dec5b2ddb5c89cbd7fd25b19
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/wix?keyword=matthew+kim+flash PDF link annotation
    • https://cdn.sqhk.co/fopikudapom/U0R17jj/27079947883.pdfIn PDF document text
    • https://mokapojigum.weebly.com/uploads/1/3/4/6/134690111/sozorevedomima-zatipuwejesokel-xodutorefad.pdfIn PDF document text
    • http://4gusevshop.space/14046041601zl1vj.pdfIn PDF document text
    • http://1cats.space/lego_ninjago_minecraft_texture_pack_1.8p0ako.pdfIn PDF document text
    • http://lnstagramcentre.net/como_hacer_una_unidad_didactica_en_infantil3l86h.pdfIn PDF document text
    • http://photoforce.ru/snap_pandemic_assistance8flho.pdfIn PDF document text
    • https://japapetokanov.weebly.com/uploads/1/3/1/4/131454126/memubusufigajulu.pdfIn PDF document text
    • https://zibaxewax.weebly.com/uploads/1/3/4/6/134699960/jejarowugidiruwake.pdfIn PDF document text
    • http://maluxevuno.22web.org/florida_llc_annual_report_filing.pdfIn PDF document text
    • https://cdn.sqhk.co/tumosirewuw/cghhdjg/jelly_shift_cube_racer_free_games_online.pdfIn PDF document text
    • https://cdn.sqhk.co/xokebuzizo/1OowXif/compare_two_text_files_notepad_64_bit.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/hgRgdjf/94377494008.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/10306005936.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/divisional_application_epo_guidelines.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_off0000d0d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0D1 5072 bytes
SHA-256: dd1d7e97ee583e6f3ca299ca1f081a76ecc2fab9e6f8b2a7fe41aa718e9cfe06
font_01_sfnt_off0000e212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE212 10080 bytes
SHA-256: 0ba9e51ec0f38324193e40a54d28bd9602b0c195b65cbfce04a3dcd5fd2089fb