Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea9e26076d5eafad…

MALICIOUS

PDF

70.8 KB Created: 2021-02-17 05:40:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a957f0709cefaa6f9bc731356592997c SHA-1: 2b0f37d2ee179cadb8b1a2257eef69be1a0661ac SHA-256: ea9e26076d5eafadc3682569875f6b08a51530cc3596f5072a4177fdf3d6ada2
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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/aws?utm_term=zebra+zp+505+labels+fedex PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4494435/normal_601a692b1eaba.pdfIn PDF document text
    • https://rowegodidevonu.weebly.com/uploads/1/3/4/4/134468430/7087493.pdfIn PDF document text
    • https://cdn.sqhk.co/jemitaso/jfggnxp/facebook_lite_play_store_download_app_free_net.pdfIn PDF document text
    • https://cdn.sqhk.co/sagitusat/ggOigyC/muse_dash_characters_ages.pdfIn PDF document text
    • https://tuzokoluxalof.weebly.com/uploads/1/3/1/3/131382257/3583465.pdfIn PDF document text
    • https://furureseseruwa.weebly.com/uploads/1/3/4/4/134481841/8571030.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489835/normal_5fdc878e7fe99.pdfIn PDF document text
    • https://cdn.sqhk.co/jenetuwuda/jfwjcKl/top_up_ez_link_concession_online.pdfIn PDF document text
    • https://woduluzotuni.weebly.com/uploads/1/3/4/3/134373450/c4a659c47d3b5b6.pdfIn PDF document text
    • https://cdn.sqhk.co/zuvifilezaja/QsGhgtk/design_furniture_gallery_st_albert.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460228/normal_5fd8b3c89ea13.pdfIn PDF document text
    • https://muxavitegujun.weebly.com/uploads/1/3/1/6/131637584/xedoxe.pdfIn PDF document text
    • https://wanovupejofo.weebly.com/uploads/1/3/4/5/134580977/c682ce1abe7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382949/normal_60205375ed41d.pdfIn PDF document text
    • https://rolorizumi.weebly.com/uploads/1/3/4/3/134316308/d666b076b4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD488 5516 bytes
SHA-256: a5862557aee69462dd38d9d7f5e7efad66a88e461ffa64f361255d467ce583b4
font_01_sfnt_off0000e761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE761 11556 bytes
SHA-256: d92ccd0ffec28dbe4ba4c152175778c22a27bb232b20e9a78aa6ca04742cd2b5