Malicious PDF — malware analysis report

Static analysis result for SHA-256 1855030c17698d59…

MALICIOUS

PDF

70.7 KB Created: 2021-02-27 21:39:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 00544edcedcc989a45f7cc61b3e33667 SHA-1: 9ac74130cee6e06142b72d499e1bf3c71b063d49 SHA-256: 1855030c17698d59a7705396893d32a503e8499eab7ee22afc15eb7b4d8e30ba
126 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
  • 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://xajibur.ru/wix?keyword=knockback+stick+command+1.12 PDF link annotation
    • http://paselon.getenjoyment.net/do_chloroplasts_contain_chlorophyll.pdfIn PDF document text
    • https://bituxomixa.weebly.com/uploads/1/3/4/1/134131270/gewoma.pdfIn PDF document text
    • http://sowipilarow.mygamesonline.org/the_true_story_of_the_3_billy_goats_gruff.pdfIn PDF document text
    • http://dazolovegom.mygamesonline.org/how_to_buy_home_insurance_canada.pdfIn PDF document text
    • https://tabupuja.weebly.com/uploads/1/3/4/6/134647436/pinonum.pdfIn PDF document text
    • https://natadafupekex.weebly.com/uploads/1/3/1/8/131856288/gevapolus-jonakis-nexoken-fuwefav.pdfIn PDF document text
    • http://rozel.ru/dowevapokadaleduvuwodepg67uv.pdfIn PDF document text
    • http://rameautbxy.space/mejudamekajorifafalfz3th.pdfIn PDF document text
    • http://zitokujamu.mypressonline.com/68895599189.pdfIn PDF document text
    • http://sipipewawezizuf.getenjoyment.net/98191446484.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lobakixadob.epizy.com/bartleby_the_scrivener_free.pdfIn PDF document text
    • http://vujapoguxesak.myartsonline.com/95621734198.pdfIn PDF document text
    • http://gaxilitexu.onlinewebshop.net/xekelosewavajukev.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/39166811315.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/97085772530.pdfIn PDF document text
    • http://pelebirepopo.onlinewebshop.net/what_is_good_workplace_culture.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_off0000d6d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6D7 5348 bytes
SHA-256: a12024b880e04bc1a4077ccb963287550617cbd08b692cb183aefa8ccde2d675
font_01_sfnt_off0000e905.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE905 10840 bytes
SHA-256: dc1ed43be481371c2be1aca728aae0eeaa303783279199dd226e9cf801f3d599