Malicious PDF — malware analysis report

Static analysis result for SHA-256 89e6f696b80db25a…

MALICIOUS

PDF

75.7 KB Created: 2021-04-13 07:46:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 24c27d1efe7e08db63f86e5de0ae9cf5 SHA-1: b043c99aba5c3fcad8cba9b031ebc15ce201de7e SHA-256: 89e6f696b80db25a8f82719666a75a3f647b97d7bdb9ef664ac3912faaecb360
126 Risk Score

Malware Insights

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

The sample was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains numerous embedded URLs, many of which point to disposable hosting or link farms, suggesting a phishing or malware distribution scheme. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a deliberate attempt to create a link farm for SEO purposes, likely to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://maypoin.ru/strik?utm_term=ejemplo+de+minuta+de+reunion+pdf PDF link annotation
    • https://cdn.sqhk.co/rukugewul/iiijdSL/free_bitcoin_cash_blockchain_wallet.pdfIn PDF document text
    • http://lotukaguw.sportsontheweb.net/altair_hypermesh_tutorials.pdfIn PDF document text
    • https://cdn.sqhk.co/teforoke/jjSibFM/blocky_farm_racing_apk_mod.pdfIn PDF document text
    • http://bulibujirifubof.scienceontheweb.net/41081422046.pdfIn PDF document text
    • http://katipef.medianewsonline.com/vedezosavibozenawetalosi.pdfIn PDF document text
    • http://sogejovep.mypressonline.com/65146309925.pdfIn PDF document text
    • https://cdn.sqhk.co/mikedeto/h5yIjGu/free_robux_no_verification_2020_october.pdfIn PDF document text
    • https://cdn.sqhk.co/tavaxikanabu/jgjcjhE/71574134569.pdfIn PDF document text
    • https://cdn.sqhk.co/xerolunem/jbM7qjd/fashion_story_hack_android_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/kujotukil/geLBOhf/45879692937.pdfIn PDF document text
    • http://dosubodanes.mypressonline.com/administracao_publica_para_concurso.pdfIn PDF document text
    • http://tamakedesununod.mywebcommunity.org/akbar_birbal_ki_kahani_free_download.pdfIn PDF document text
    • http://fesufobototezer.mywebcommunity.org/ashutosh_mukherjee.pdfIn PDF document text
    • https://cdn.sqhk.co/venitalobeni/gjjjjeO/28017569175.pdfIn PDF document text
    • http://wedipum.mygamesonline.org/tubelofokal.pdfIn PDF document text
    • https://cdn.sqhk.co/zexupibo/9jjVZ8G/chi_square_symbol_in_word_2007.pdfIn PDF document text
    • https://cdn.sqhk.co/mebereserab/xieifib/modern_cover_letter_template_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dijipola.onlinewebshop.net/pdf_to_autocad_2020_dwg_converter_free_download.pdfIn PDF document text
    • http://nakogis.myartsonline.com/capnography_waveform_interpretation.pdfIn PDF document text
    • http://nizowozutagele.atwebpages.com/biometria_hematica_normal.pdfIn PDF document text
    • http://vofejobuvokare.rf.gd/dictadura_augusto_pinochet.pdfIn PDF document text
    • http://ranozodoj.epizy.com/78127281192.pdfIn PDF document text
    • http://subogerilazelo.atwebpages.com/bgi_ethiopia_beer_factory.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_off0000e825.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE825 5044 bytes
SHA-256: ad39f7f1774958beab44bbdd5d9a718d58e366a6730570c59ad650af1031f72f
font_01_sfnt_off0000f93a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF93A 11824 bytes
SHA-256: 6e0c9328867bd3c928f9c3544744f24f4535f1e0d9bd4763a7886c02d250f6a9

Open this report in the interactive analyzer, or submit your own file for analysis.