Malicious PDF — malware analysis report

Static analysis result for SHA-256 66f961e472d4e2df…

MALICIOUS

PDF

69.4 KB Created: 2021-02-25 20:57:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: bca927312fedfd0ed4b5a6957a6c6241 SHA-1: ca59eaa3a51dbc4fb4767bf66810e9792d595985 SHA-256: 66f961e472d4e2df656da228d85720d4102785546796a218af49335b3d07ccf0
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=basic+ionic+bonding+worksheet PDF link annotation
    • https://kosonijuzar.weebly.com/uploads/1/3/5/9/135974682/sopupenavuto-mimivipe.pdfIn PDF document text
    • http://axacheat4.xyz/babar_el_elefantedvnu4.pdfIn PDF document text
    • https://zupalopozaguri.weebly.com/uploads/1/3/2/3/132302876/5345105.pdfIn PDF document text
    • http://fotonagosuslugi-01.space/eat_it_all_lemmyqav7w.pdfIn PDF document text
    • https://vifewilepame.weebly.com/uploads/1/3/4/0/134012930/6374832.pdfIn PDF document text
    • http://regse.website/all_live_tv_channels_appiiapu.pdfIn PDF document text
    • http://pugisapi.mypressonline.com/xupozurimumeba.pdfIn PDF document text
    • http://xoziduso.mypressonline.com/can_an_obd2_scanner_reset_codes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475209/normal_5ff7ae61d2b24.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499635/normal_5fe5110e1334f.pdfIn PDF document text
    • http://pakirekugep.scienceontheweb.net/python_dictionary_reverse_keys_and_values.pdfIn PDF document text
    • https://kukurako.weebly.com/uploads/1/3/5/3/135321284/vupojolusatuvuxu.pdfIn PDF document text
    • https://marevesebogu.weebly.com/uploads/1/3/0/8/130813877/jipumaruzuw.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/jipowumat/zikibuzaviduwobil.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/ketexelul.pdfIn PDF document text
    • http://makakanow.onlinewebshop.net/poxorizonup.pdfIn PDF document text
    • https://s3.amazonaws.com/faduxodiwo/is_a_jeep_wrangler_a_good_car_to_lease.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/52130797488.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_off0000d317.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD317 5516 bytes
SHA-256: 1bca0b52fa2bb1d13b8eb14b73794b1c7149129e8b598f693ddac37ebeb1c0aa
font_01_sfnt_off0000e5e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E1 10184 bytes
SHA-256: f1bf60358e7d599522175ad20f22f669649015643ac20b09e763cc898cc9b811