Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2e5a3bbff018c2c…

MALICIOUS

PDF

67.0 KB Created: 2021-03-04 02:21:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e5c89f9305ce95a70d087ba4c998f486 SHA-1: 1238daf4f8774da890c40be096aa4066d5deadb4 SHA-256: c2e5a3bbff018c2cac682b87a0ecdb17d5f4a597a67e0b0f7f68540cf31066a2
184 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
  • 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/award?keyword=always+do+your+best+song In PDF document text
    • https://mofutobanu.weebly.com/uploads/1/3/1/3/131383854/68f862b9bf9bd16.pdfIn PDF document text
    • http://ig-soft-team.com/homunculus_leveling_guide1kujl.pdfIn PDF document text
    • http://lamovingcompany.com/degejadudoxafesubuginaww0dje.pdfIn PDF document text
    • https://femesavez.weebly.com/uploads/1/3/1/3/131383434/2537433.pdfIn PDF document text
    • https://xuzelete.weebly.com/uploads/1/3/2/6/132681171/b44db9014bf7f.pdfIn PDF document text
    • http://cesaregaspari.com/hocus_pocus_book_popsocket92611.pdfIn PDF document text
    • https://taduvovu.weebly.com/uploads/1/3/1/8/131871704/rofixo.pdfIn PDF document text
    • https://jifafaxima.weebly.com/uploads/1/3/1/8/131871415/sofuzon_wotodasesimage_xixilodeke_bezep.pdfIn PDF document text
    • https://sawotulexude.weebly.com/uploads/1/3/5/2/135298589/10e9723025bef50.pdfIn PDF document text
    • http://confirmationhelpcenter.com/evowars._io_crazy_gamesj8rim.pdfIn PDF document text
    • https://zadobezaja.weebly.com/uploads/1/3/0/7/130775221/7352672.pdfIn PDF document text
    • http://avtovishki-msk.ru/35471545468pvsv0.pdfIn PDF document text
    • http://magazok.top/tusurejuvevuvajuxuregn2pe5.pdfIn PDF document text
    • http://idealica-co.site/tokotugigeruhav7.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/zetituri/golalazigujigeviliz.pdfIn PDF document text
    • https://s3.amazonaws.com/bovenotojitowe/avatar_musik_indonesia_apk_mod.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/jisisurinowinajugoxus.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/business_income_tax_computation_format.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/game_crash_bandicoot_ps2_for_android.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_off0000caaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAAF 5316 bytes
SHA-256: 102378e20c62df3dc50c04ce435afa00f524a4512d76f9bfcc284253ab5e0fa3
font_01_sfnt_off0000dce9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE9 10080 bytes
SHA-256: c336b78e249a5517fc4af73429eb8274dd6d98ba4cf30faaa35fece941c0960a

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