Malicious PDF — malware analysis report

Static analysis result for SHA-256 b11539fdfc5aec35…

MALICIOUS

PDF

68.6 KB Created: 2021-02-26 15:57:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 945e592e3c26376b1bfb3d063f738165 SHA-1: bc626aa271109d3a3bf5fb80bc745d11f58f5a52 SHA-256: b11539fdfc5aec35e1931c1dc9acdb8836da1ef6c30d1f1c62bb52cac0f1a70c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://ponafet.ru/award?keyword=giraffes+can%2527t+dance+activities+tes PDF link annotation
    • https://cdn.sqhk.co/jivumigen/FVjfnB4/my_talking_tom_friends_download_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/fopikudapom/U0R17jj/27079947883.pdfIn PDF document text
    • http://rosutob.getenjoyment.net/ww1_artillery_shell_casing_identification.pdfIn PDF document text
    • http://rabota-plus.club/59792976268rt4gd.pdfIn PDF document text
    • http://beremoter.online/8092718297368mmk.pdfIn PDF document text
    • http://kifigopetufoge.iblogger.org/rixafitomuwumozeruv.pdfIn PDF document text
    • http://golesaluwo.66ghz.com/warlock_3.5_guide.pdfIn PDF document text
    • http://domainlimax.xyz/28784506256d2jmh.pdfIn PDF document text
    • http://fbdirect.site/xuvetofosajumakutuvuzopyg0kl.pdfIn PDF document text
    • http://imedo.ru/mosefamedereludiduvojatqsxd8.pdfIn PDF document text
    • http://smcjd.com/jaxopafapedafabivuyrwrv.pdfIn PDF document text
    • https://cdn.sqhk.co/mumaxifup/igiaJdz/38249339756.pdfIn PDF document text
    • https://telabafulux.weebly.com/uploads/1/3/0/9/130969700/2218423.pdfIn PDF document text
    • http://im-marceting.site/tikoropoxapiremibqjiwr.pdfIn PDF document text
    • http://zisuroto.mygamesonline.org/surely_youre_joking_mr_feynman_audiobook.pdfIn PDF document text
    • https://cdn.sqhk.co/wazikunal/jfM1hgk/62569621334.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://juvusamis.epizy.com/gaxexat.pdfIn PDF document text
    • http://matasup.rf.gd/arcsoft_photostudio_5._5_free_windows_10.pdfIn PDF document text
    • http://losisotudek.epizy.com/jarebazebuvazerimen.pdfIn PDF document text
    • http://pelebirepopo.onlinewebshop.net/fimolupadaremo.pdfIn PDF document text
    • http://pozidijapepore.atwebpages.com/is_1400_a_good_sat_score_for_ucla.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_off0000d169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD169 5108 bytes
SHA-256: 5908bdc61b75838e846e802aeed405a476dd79dbfe9beeabf5f9c16d47014365
font_01_sfnt_off0000e2ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2EC 9912 bytes
SHA-256: 335bae205030d922ceb382ba5fb6d13a74647741ee7e4268aefb75897dacfc65