Malicious PDF — malware analysis report

Static analysis result for SHA-256 16804197096a9001…

MALICIOUS

PDF

69.7 KB Created: 2021-02-23 16:28:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 613b0ddafc342e8c8c0ea1ef3c944c38 SHA-1: 6832c02ad04741b9a1ecd52087004471ef50bd84 SHA-256: 16804197096a9001eadbd47e4ade17cb949ed86c644f6ec58f963fe31e42ec40
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://seumenha.ru/wix?keyword=prince+ali+rescue+wig PDF link annotation
    • https://pofekabebo.weebly.com/uploads/1/3/0/7/130739116/taburixabawef-zobegevifesub.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418963/normal_5ffea87adf043.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470681/normal_602e033331472.pdfIn PDF document text
    • http://adminhalil.com/gufizibepurosed6uteo.pdfIn PDF document text
    • http://ufenmac.com/laporan_studi_kasus_bkiqd3t.pdfIn PDF document text
    • http://securityverifiedservices.com/zunoxapumuxogiw5sab3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367643/normal_601fb84118bfc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367290/normal_5fe45ddd73451.pdfIn PDF document text
    • https://wetolobumusu.weebly.com/uploads/1/3/4/5/134579125/c522403948da.pdfIn PDF document text
    • https://jitolubupiloz.weebly.com/uploads/1/3/4/6/134637312/c80eb.pdfIn PDF document text
    • http://zoompol.xyz/what_is_the_rarest_feardgxt5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mujujum.epizy.com/88406468363.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/89502027833.pdfIn PDF document text
    • http://xanawuvogi.epizy.com/vofosiluguwo.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/convocation_form_unipune._ac._in.pdfIn PDF document text
    • http://zebofazedixa.rf.gd/41554350003.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_off0000d45c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD45C 5060 bytes
SHA-256: 1964ceef898138cdb026340030d3999e2ca0001997f9516bf2834069b286f91f
font_01_sfnt_off0000e5b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5B3 10712 bytes
SHA-256: 5401709bc5a9e4b52c4eba76510dc7b752ede10202b25b84e33a169ce9ee9434