Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ea14e121c1d4fcc…

MALICIOUS

PDF

85.1 KB Created: 2021-04-01 07:13:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 89d55bb6c18cff2be05fc2c2cf103c6a SHA-1: 19db4755eb1c3da0be70cce2260668711feeb2cc SHA-256: 7ea14e121c1d4fcc0008617916d9dcc2f12077292fb70f912c923e737b55a19b
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://lozipotod.ru/123?utm_term=balu+video+songs+hd PDF link annotation
    • https://rozolabo.weebly.com/uploads/1/3/0/8/130814594/zarumifor-febigetop.pdfIn PDF document text
    • https://jinijazi.weebly.com/uploads/1/3/4/6/134668286/kekugepodigi.pdfIn PDF document text
    • https://xemalijojododud.weebly.com/uploads/1/3/0/9/130969235/4483152.pdfIn PDF document text
    • http://sidawiw.iblogger.org/percy_jackson_series_disney_plus_teaser.pdfIn PDF document text
    • https://vawotitalu.weebly.com/uploads/1/3/2/7/132710714/nugudeverugorezateg.pdfIn PDF document text
    • https://gatimosuxanad.weebly.com/uploads/1/3/2/8/132814295/4165403.pdfIn PDF document text
    • https://kalaxokesipak.weebly.com/uploads/1/3/4/8/134888683/11621ec.pdfIn PDF document text
    • http://stavki-na-sport.site/36467299827fjwj.pdfIn PDF document text
    • http://sentytld.online/botim_app_storeou9c8.pdfIn PDF document text
    • https://rusofejez.weebly.com/uploads/1/3/1/8/131856127/votoxaw-kogirejum-nowufaz-jereseg.pdfIn PDF document text
    • https://dobetabuzaduguz.weebly.com/uploads/1/3/5/3/135312815/pizejugu.pdfIn PDF document text
    • http://cleanup-sale.site/matrix_addition_and_subtraction_workivygh.pdfIn PDF document text
    • http://copyrightnotices-form.com/cheyne-stokes_respirations_lyderrvht5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xulivef.rf.gd/bizagi_modeler_manual_de_usuario.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/google_play_store_app_free_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/legesiliv/73100487078.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/frette_hotel_classic_sheet_set_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/65532777814.pdfIn PDF document text
    • http://vavijirodujozi.rf.gd/ziladal.pdfIn PDF document text
    • https://s3.amazonaws.com/buwosevax/36555900036.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/what_are_the_brahma_sutras.pdfIn PDF document text
    • http://nalejunubotuw.rf.gd/extreme_values_of_functions_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fomudebipefasu/skull_bones_anatomy.pdfIn PDF document text
    • http://nagivozuzosawax.rf.gd/pdf_alkenes_and_alkynes.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/38880124530.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/38451885225.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f96e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF96E 5100 bytes
SHA-256: aa783598bd62bad90b8d3fcf1137284bf3b9802a1ecc011abd9bfd036dbad146
font_01_sfnt_off00010ace.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ACE 11668 bytes
SHA-256: 099bce5b106e309f2e2dfc7cf32ef45c8193381c42a0419969c6c4518f8bb115
font_02_sfnt_off0001319e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1319E 16036 bytes
SHA-256: bc1c1644e30597ae0beaac312b9749a82b64e26c109397326cdc67fdbaf2fe17

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