Malicious PDF — malware analysis report

Static analysis result for SHA-256 c54c29e0e581f47a…

MALICIOUS

PDF

68.3 KB Created: 2021-03-06 10:09:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d13d469594a74bf2ba9f1bf0c9af5fad SHA-1: c36f08821e94e25495b7f2f6c2b2faa2c715d60f SHA-256: c54c29e0e581f47af80690def00c4eaba3f4e9faddc694d28c745f1d98329fc8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://mezovuduw.ru/award?keyword=ordering+long+form+marriage+certificate+nova+scotia PDF link annotation
    • https://cdn.sqhk.co/rabataxuvax/isXhfic/ghost_hunters_adventure_club_bandcamp.pdfIn PDF document text
    • https://gusoberususot.weebly.com/uploads/1/3/1/4/131454899/71d1a098157.pdfIn PDF document text
    • https://cdn.sqhk.co/modonasuje/86jayEt/sufivezeroraze.pdfIn PDF document text
    • http://rezotu.xyz/711960648702bhxt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373505/normal_5ff625bc63fa8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451035/normal_603ef3f29b995.pdfIn PDF document text
    • http://unlockdeals.shop/tablet_weaving_patternszbp22.pdfIn PDF document text
    • https://cdn.sqhk.co/gusisezepemu/COk8pgj/sadeketop.pdfIn PDF document text
    • https://cdn.sqhk.co/nutewakizi/ymjcOV3/mujelar.pdfIn PDF document text
    • https://cdn.sqhk.co/musezikuzapi/hTidAgf/leap_day_deals_2020_canada.pdfIn PDF document text
    • https://cdn.sqhk.co/zegofurop/ftLjfgg/street_of_rage_2_apk_no_ads.pdfIn PDF document text
    • https://cdn.sqhk.co/filodomazora/dihdlid/88560193142.pdfIn PDF document text
    • http://detonic-shop.website/kevin_macleod_amazing_plan_sheet_musicqzy09.pdfIn PDF document text
    • https://raxagipob.weebly.com/uploads/1/3/4/8/134883443/wapekatowug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483842/normal_603e6e183e43f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448727/normal_5fec99b8ba89b.pdfIn PDF document text
    • http://mif-smeh.space/531040388094xnt6.pdfIn PDF document text
    • https://pagopolekabob.weebly.com/uploads/1/3/4/3/134305888/sirejinowiku.pdfIn PDF document text
    • http://believes.space/952470283711etsk.pdfIn PDF document text
    • https://mubajodopiwal.weebly.com/uploads/1/3/1/4/131454521/mawifafijuwiw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://03df18d0-0a94-4077-8b44-1f3cf8b7c870.filesusr.com/ugd/23a6c3_7a0459eb082949cf90fa38b44da54111.pdf?index=trueIn PDF document text
    • https://39c1d623-eccb-4af0-a86a-15328a2d61f9.filesusr.com/ugd/3cb6cb_1215437f1e24470ca969d75e0719890e.pdf?index=trueIn 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_off0000ce93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE93 5428 bytes
SHA-256: 91e27c0cf0d8a3db6638ba48f149148280206eefd4355658be15c5e6a564f59f
font_01_sfnt_off0000e0fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FB 9936 bytes
SHA-256: 13ec58c2011bca200f1c87dd12d92015f67c381968ec0960472d600e672501e8

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