Malicious PDF — malware analysis report

Static analysis result for SHA-256 49927597a5be601d…

MALICIOUS

PDF

70.5 KB Created: 2021-02-17 04:51:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 06b11f3f92d786d4a535cb45d394ab7b SHA-1: df09d49e7895673b0da8556bb4eb4765be6258ea SHA-256: 49927597a5be601d9b4db1024a3f0d7657c273ebe1be9cc02f8116228de1731f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=apu+address+malaysia PDF link annotation
    • http://yourdesk.website/naberojemadimudatepuvila9atma.pdfIn PDF document text
    • http://reduslim-siteofficial.site/matching_shapes_and_colors_worksheetsnuw07.pdfIn PDF document text
    • http://bluebadgeform.com/audi_a8_2012_manuals2gwz.pdfIn PDF document text
    • http://pearhaidhr.fun/jemadabur5bjth.pdfIn PDF document text
    • https://pejapuvurexoku.weebly.com/uploads/1/3/1/6/131636728/5230017.pdfIn PDF document text
    • http://goproonly.com/predicate_nominative_and_predicate_adjective_worksheet_with_answersrwbg2.pdfIn PDF document text
    • http://amsidgi.xyz/57000964181yunc7.pdfIn PDF document text
    • http://toppiksnack.xyz/18687503124rnb2y.pdfIn PDF document text
    • http://invitesistem.ru/free_wifi_phone_on_android7i0i8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/chorale_de_kigali_songs_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/sazariwapa/85812074588.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/febivasijinusuxuwukeva.pdfIn PDF document text
    • https://s3.amazonaws.com/punagilelabon/66612021472.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/loluvofupejujelufapibi.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/26521142173.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_off0000d7df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7DF 5196 bytes
SHA-256: d37336768ff7287ef706f836fbdf1e4ba0daabbd2156b24a5ecf16f113374102
font_01_sfnt_off0000e980.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE980 10504 bytes
SHA-256: 820b441e4a337c929b327f4ccaa2936294ef2072af6d6c0503fc37226e13fc0c