Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a7add27ebe2832b…

MALICIOUS

PDF

66.2 KB Created: 2021-02-17 08:36:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: ce21422327fba20f2a98e4243504d00b SHA-1: 4a631e2886a9b4e51ad1cd87f60d9eb788268b27 SHA-256: 4a7add27ebe2832b956c6ab1bf651f45839230ed52e65262e329889f6c3bca6a
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://maypoin.ru/wix?keyword=experimental+design+scenarios+answer+key PDF link annotation
    • http://dvestideyli.xyz/paris_chainsmokers_song_mr_jattfbk1m.pdfIn PDF document text
    • https://cdn.sqhk.co/kewixoretuze/Eviglhc/81432220017.pdfIn PDF document text
    • https://xonaxogurevof.weebly.com/uploads/1/3/1/4/131453171/jomixite.pdfIn PDF document text
    • https://cdn.sqhk.co/kalijada/haLgihf/red_balloon_movie_scary.pdfIn PDF document text
    • http://rubyshup.space/zikekedejabekiisa9.pdfIn PDF document text
    • https://lekusimije.weebly.com/uploads/1/3/1/3/131383821/vusenexeju-rakagelin-gefixufekonaw-nisikowa.pdfIn PDF document text
    • https://cdn.sqhk.co/rubutemoxe/jjdighj/nuzare.pdfIn PDF document text
    • http://alania365.ru/338013728741z46a.pdfIn PDF document text
    • https://mefufexuwi.weebly.com/uploads/1/3/4/0/134019004/de354a682d1a.pdfIn PDF document text
    • http://gloslides.com/dingus_khan_bandn93hf.pdfIn PDF document text
    • https://sixumegeb.weebly.com/uploads/1/3/4/4/134476160/1627421.pdfIn PDF document text
    • https://kikurexabo.weebly.com/uploads/1/3/5/3/135325422/6756443.pdfIn PDF document text
    • https://cdn.sqhk.co/javeduner/ghixNgi/best_time_to_watch_meteor_shower_august_2020.pdfIn PDF document text
    • http://copyright-services-us.com/book_and_movie_comparison_worksheetd77wx.pdfIn PDF document text
    • https://juwujumatel.weebly.com/uploads/1/3/4/0/134042908/ae206c4f93ae.pdfIn PDF document text
    • https://cdn.sqhk.co/wesebewoweva/5icKjgr/nunovimuzidubivuzu.pdfIn PDF document text
    • https://cdn.sqhk.co/kovezozeseg/jMjdjax/idle_business_tycoon_dubai.pdfIn PDF document text
    • https://lokeduvedip.weebly.com/uploads/1/3/4/8/134885922/wurup-wovaroxi-jujuzavosa.pdfIn PDF document text
    • https://wupugilitem.weebly.com/uploads/1/3/6/0/136020535/4a9a8c6b0b6551.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC695 5676 bytes
SHA-256: 7fe79085a32c365b77765462a33661f6de4b995801b95c39ded99f8ba1dea1b1
font_01_sfnt_off0000d9f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F3 9908 bytes
SHA-256: 512ba30f9118a7dec6c91cde6082d365229b4acc45d6a8fe63b5cae838f6b8cf

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