Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3462a25a98b06f4…

MALICIOUS

PDF

69.3 KB Created: 2021-02-28 04:18:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 16588be1aed054eebb4939355852f6ba SHA-1: 35117f733701c9cd675017a12e43a73fb84bc8d5 SHA-256: b3462a25a98b06f42be7cc336c2c5495d7f51218995646c1f353932529bc57e7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mezovuduw.ru/aws?utm_term=weber+grill+lowes+coupon PDF link annotation
    • https://rijejoxutozi.weebly.com/uploads/1/3/4/5/134599637/gimemilipiganixig.pdfIn PDF document text
    • https://nobaloledajasom.weebly.com/uploads/1/3/2/6/132681012/3355018.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371536/normal_5ff2f3c83be2b.pdfIn PDF document text
    • http://inostrana.com/19303761775zp6g8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415527/normal_5ff6810adf92e.pdfIn PDF document text
    • http://manamuposa.getenjoyment.net/the_long_haul_rodrick_funny_moments.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422367/normal_60386e80d6b0b.pdfIn PDF document text
    • http://nomenowunesazoz.scienceontheweb.net/oxidation_number_worksheet_answer_key.pdfIn PDF document text
    • http://avto-trokot.xyz/amalina_malaysia_songonykv.pdfIn PDF document text
    • https://fekodajitor.weebly.com/uploads/1/3/0/8/130874258/4876638.pdfIn PDF document text
    • https://duvozeja.weebly.com/uploads/1/3/0/7/130739152/jadoruvozidow-xabijoxo.pdfIn PDF document text
    • http://ersoil.fun/xuwonenige0qc3a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452385/normal_601ad298b86a6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469143/normal_5fca9dc465782.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wefazor.epizy.com/cakewalk_sonar_x3.pdfIn PDF document text
    • http://vumamuv.myartsonline.com/optiplex_780_drivers_windows_7.pdfIn PDF document text
    • http://dasobiviwadodaj.atwebpages.com/meade_autostar_495_497_difference.pdfIn PDF document text
    • http://zupitatip.atwebpages.com/criminal_law_definition_australia.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_off0000d4a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A0 5136 bytes
SHA-256: 0b6f6b7bd5fede9bb23db7094d3c5e828c3735cf585db20d03e2dacbde333df1
font_01_sfnt_off0000e64a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE64A 9948 bytes
SHA-256: 5bd969f8c485fab47db1015487eb27d32d13618fa879ffd0d6c621e743e3acc8