Malicious PDF — malware analysis report

Static analysis result for SHA-256 202642966369eece…

MALICIOUS

PDF

77.3 KB Created: 2021-03-29 18:51:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f07cb9651a8ccae2c21f30b57a65b09 SHA-1: 297bd7aa26e0060accc584ce15080e2143670566 SHA-256: 202642966369eecee5b05dce06f8c00c45dd1f5f4e90ab4ae2fe26838dbc014a
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains numerous external links, with a primary focus on directing users to 'zajinet.ru'. The document body, though heavily obfuscated, appears to be a lure related to 'Fanon black skin white masks analysis', suggesting a targeted phishing attempt. No scripts were extracted, but the presence of many external links points to a malicious redirection strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://zajinet.ru/strik?utm_term=fanon+black+skin+white+masks+analysis
    • https://cdn.sqhk.co/nuwalimo/grGhaii/zupomoxizivogudow.pdf
    • http://nibatuw.iblogger.org/what_is_the_spiritual_significance_of_the_number_1232.pdf
    • https://cdn.sqhk.co/wefenosefob/ahbkUuU/happy_wheels_download_steam.pdf
    • https://xiluxobafuju.weebly.com/uploads/1/3/5/3/135323992/lasujanotoxotorof.pdf
    • https://cdn.sqhk.co/kimazibo/idggiQW/solitaire_spider_2_suits.pdf
    • http://fefiwizam.sportsontheweb.net/do_car_seats_have_expiry_date.pdf
    • https://cdn.sqhk.co/nugizape/Aibjapn/gun_builder_custom_guns_shooting_range_games.pdf
    • https://xabetibupu.weebly.com/uploads/1/3/0/7/130738966/4b2dbc3.pdf
    • http://ropisunofo.mygamesonline.org/90485091194.pdf
    • http://fisitupogavi.mypressonline.com/concierto_de_aranjuez_brass_quintet.pdf
    • http://gifuketedep.22web.org/32241314611.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/kefodek/kin_root_word_definition.pdf
    • https://s3.amazonaws.com/dovulavavo/fotizaxupomud.pdf
    • https://s3.amazonaws.com/tokudapele/42039036234.pdf
    • http://valopuloti.rf.gd/final_accounts_format_download.pdf
    • https://s3.amazonaws.com/xufaxoferugod/67436440015.pdf
    • https://s3.amazonaws.com/webipejonavuv/yahoo_messenger_chat_room_apk.pdf
    • https://s3.amazonaws.com/wavunot/15291883271.pdf
    • https://s3.amazonaws.com/nitidadufetenu/nes_emulator_for_psp_3000.pdf
    • http://janevaxibeju.rf.gd/lavubanesepelozofax.pdf
    • http://rabepubi.rf.gd/big_city_diner_menu.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f11f.bin
039bda83adfca10957a2262900ff72e436d64c375bf19f0f9a03a8b78bfbaba3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF11F 5296 bytes
font_01_sfnt_off0001031d.bin
d12776b4a3e645e3557e1dcc4808f3e2989893c686fa25bb02a3d1c212a75efc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1031D 10900 bytes

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