Malicious PDF — malware analysis report

Static analysis result for SHA-256 2994054e8c66e4db…

MALICIOUS

PDF

67.3 KB Created: 2021-02-25 23:21:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8b04e2ca8b57488fd5578522516c6d93 SHA-1: 140d2dbf1ac678a2cf16fe4d34cda13911796619 SHA-256: 2994054e8c66e4dbe2cd9b91d4486ad6eaa0408e6934a4b258f78c7cf5393b58
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://druttle.ru/award?keyword=possessive+adjectives+worksheet PDF link annotation
    • http://tuderoba.getenjoyment.net/is_outlander_free_on_netflix.pdfIn PDF document text
    • https://tibijipobarak.weebly.com/uploads/1/3/4/4/134493900/rokijiduko-vovaduvapakobiv-wudobunirileb.pdfIn PDF document text
    • https://wojasatog.weebly.com/uploads/1/3/4/7/134765175/gizuf-ginisavifuj-masudenovulurez.pdfIn PDF document text
    • http://bidizujimon.getenjoyment.net/fender_super_champ_x2_amp.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/79481803934.pdfIn PDF document text
    • https://babotiditufo.weebly.com/uploads/1/3/4/6/134694550/7c3b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415756/normal_600a06f43c444.pdfIn PDF document text
    • http://kedugobepuged.mywebcommunity.org/what_does_color_black_represent_in_bible.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nabenejajoko.myartsonline.com/99149016681.pdfIn PDF document text
    • http://rosajeku.myartsonline.com/dazizorekimoliperuke.pdfIn PDF document text
    • http://kepofif.onlinewebshop.net/how_can_i_reduce_my_dish_network_bill.pdfIn PDF document text
    • http://faxiruvud.myartsonline.com/fufibajimomodo.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/tertiary_prevention_of_cardiovascular_disease_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/semicolon_worksheets_for_middle_school.pdfIn PDF document text
    • http://gurabagoderes.atwebpages.com/95943144357.pdfIn PDF document text
    • https://s3.amazonaws.com/bajuse/40689719958.pdfIn PDF document text
    • http://pusapovewazigu.onlinewebshop.net/4833340280.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_off0000cb5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB5B 5288 bytes
SHA-256: 95b7ea9a4a6ccb118ba2ea3c9a4c80ac7c4eec36e1519b0beacc97d32784e64a
font_01_sfnt_off0000dd70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD70 10240 bytes
SHA-256: 2fb990f2b83e27c8cb655f4e903653cec1e28ff23553daaba43b61697c1673a5