Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9b3b8e0d4357ab9…

MALICIOUS

PDF

75.8 KB Created: 2021-03-07 19:03:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 95387309fd167a53a007297708fa8186 SHA-1: f38e842c5697da495135087573447620a4af9fed SHA-256: f9b3b8e0d4357ab94d0a5687f1d6d72fa5957c1c41dfe57c73ef909cdc32ffbc
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://jacksth.ru/award?keyword=what+is+the+default+password+for+wd+my+cloud PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4479710/normal_603186952638f.pdfIn PDF document text
    • https://wexasubofuxumeb.weebly.com/uploads/1/3/2/7/132740188/98c5fdc.pdfIn PDF document text
    • http://goodik.fun/millennial_hospitality_2_free_downloadg94z8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373004/normal_6024f73938e29.pdfIn PDF document text
    • http://xamagexezuloku.iblogger.org/41605224552.pdfIn PDF document text
    • https://xexonukomamub.weebly.com/uploads/1/3/4/3/134353621/puzevusetiw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484156/normal_600c6d9a6d331.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468534/normal_600e8fad9fc17.pdfIn PDF document text
    • https://fakanodadix.weebly.com/uploads/1/3/4/3/134371587/tagax-bubam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470972/normal_601e48502a4b1.pdfIn PDF document text
    • http://connexion-amelii.xyz/bocio_multinodular_atoxico5auol.pdfIn PDF document text
    • https://xotizirew.weebly.com/uploads/1/3/1/8/131855992/pamatadufam.pdfIn PDF document text
    • http://tigibisolefora.mygamesonline.org/samsung_xpress_c460w_easy_wireless_setup.pdfIn PDF document text
    • https://xomadugazulu.weebly.com/uploads/1/3/4/5/134597447/41f73a903a83cc.pdfIn PDF document text
    • https://dawukobisoxewi.weebly.com/uploads/1/3/4/0/134040495/xujebi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tesoxukezeziles.epizy.com/dillon_650_for_sale_uk.pdfIn PDF document text
    • http://xanunomoz.rf.gd/befar.pdfIn PDF document text
    • http://vubelifijam.atwebpages.com/what_is_the_easiest_basketball_offense_for_youth.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

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_off0000e991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE991 5604 bytes
SHA-256: 228b87c5e0396ced4e392f163b8fb284d422e13cea99a3ec9cf4352aa17d9108
font_01_sfnt_off0000fc97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC97 10912 bytes
SHA-256: 39c05d9308f292a6f604d0429c10b6f1ff554d59a47cc9586a984e3813c4b4e2

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