Malicious PDF — malware analysis report

Static analysis result for SHA-256 53a4293d8bb5f23f…

MALICIOUS

PDF

71.9 KB Created: 2021-03-01 05:32:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 221f1666b479e4653d5aa6b2bb89ff39 SHA-1: 27a9f0bb1c01ba8efe1d0bbde16d99d61b6d7e88 SHA-256: 53a4293d8bb5f23f95f0b27c1fd3c2cd0b1eb12093c97ddad1555b0b4d7fdbaf
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://kuzutuzo.ru/award?keyword=can+god+forgive+everyone PDF link annotation
    • https://lusenivusimutom.weebly.com/uploads/1/3/4/8/134887898/bawokoxugiwatakivi.pdfIn PDF document text
    • http://naturmilans.fun/lopokupegegijezoxokije4ol28.pdfIn PDF document text
    • https://cdn.sqhk.co/bikakigiben/lnsgdND/zikakenubawiret.pdfIn PDF document text
    • http://triple-doska3.club/ladugukinamapoloniptsn9.pdfIn PDF document text
    • https://buwolerujagelav.weebly.com/uploads/1/3/4/5/134580081/7133508.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467910/normal_60067d634ea31.pdfIn PDF document text
    • https://muwemobivom.weebly.com/uploads/1/3/0/7/130776082/vepenizotuzomisuxa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447251/normal_5fdc0e2c62525.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485818/normal_5fcd0cd35f74c.pdfIn PDF document text
    • http://iuts.space/24018062065j6i6a.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuzajomugi/qhgHiaL/58310386200.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378405/normal_6008f0a9c0b90.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/jiiXhhc/nifoziwugarow.pdfIn PDF document text
    • https://totidulabi.weebly.com/uploads/1/3/1/6/131606487/mibapigejitagajoxu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483359/normal_6028e7119653b.pdfIn PDF document text
    • https://rabivavas.weebly.com/uploads/1/3/0/9/130969809/2dcbc39c1d184.pdfIn PDF document text
    • https://cdn.sqhk.co/joduragenep/iaYjihg/switzerland_covid_cases_last_14_days.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fazitewem.rf.gd/biblia_interlineal_gratis.pdfIn PDF document text
    • http://zaxutakizet.epizy.com/2019_latest_movies_bollywood.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_off0000de0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE0E 4932 bytes
SHA-256: c0d756ec6121b1e6f69588267d7b4403af0e5f9ce301a403fda9e5ea1476ddb4
font_01_sfnt_off0000eef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF6 10428 bytes
SHA-256: 557bfb21576ee2818639ee68ad3ee9abce1d78ecaa61f455b3c19e5416579b3f