Malicious PDF — malware analysis report

Static analysis result for SHA-256 42ccf348438d56c2…

MALICIOUS

PDF

47.6 KB Created: 2021-03-25 11:45:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3fcb7b76ca3644e925b57d076ffdb790 SHA-1: da04f9eca64d122ef7eca86039a630b0d312d3ee SHA-256: 42ccf348438d56c299590685f095db59885a44a49fb45c34007891650073ba34
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF is identified as an image-only lure, typical of phishing campaigns, with a high ML classifier score and ClamAV detection. It contains numerous embedded URLs pointing to various domains, suggesting a link farm or redirection mechanism to deliver malicious content or phish for information. The primary URL, https://jottigo.ru/award?keyword=hssc+advt+14+2020+pdf+download, is a strong indicator of the intended malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7062

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 47 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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
  • 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://jottigo.ru/award?keyword=hssc+advt+14+2020+pdf+download
    • https://cdn-cms.f-static.net/uploads/4483867/normal_603f35a83e0fc.pdf
    • http://xejitifuwoligaf.mypressonline.com/star_trek_new_movies_2019.pdf
    • https://cdn.sqhk.co/menidume/ghijcjf/gardner_quad_squad_blog.pdf
    • http://rosipale.scienceontheweb.net/dell_latitude_7480_manual.pdf
    • https://cdn.sqhk.co/joxezexukub/eN4A1ih/snake_in_the_grass_song_jolly_phonics.pdf
    • https://cdn.sqhk.co/zamikukodef/haXZWH4/galvus_metformin_side_effects.pdf
    • https://static.s123-cdn-static.com/uploads/4472200/normal_5ff06dd6e38dd.pdf
    • https://cdn-cms.f-static.net/uploads/4461791/normal_60173fb2d6e27.pdf
    • http://gugolufixa.mywebcommunity.org/al_quran_english_free_download.pdf
    • http://pibarulajido.getenjoyment.net/kfc_double_down_nutrition_uk.pdf
    • https://cdn.sqhk.co/gusisitixinu/Fgcghgh/mor_sansar_ma_cg_song_mp3_download_pagalworld.pdf
    • http://gekiwejal.scienceontheweb.net/jadixosu.pdf
    • http://boguzimaro.getenjoyment.net/livro_biotecnologia_industrial_volume_1.pdf
    • http://bidajalej.onlinewebshop.net/academy_stars_1_download.pdf
    • http://sidepojedava.myartsonline.com/samyutta_nikaya_italiano.pdf
    • http://toxifiv.myartsonline.com/55563121954.pdf
    • http://jamotawopoxagu.rf.gd/aristotle_logic_book.pdf
    • http://kejufunekopal.epizy.com/global_competitiveness_report_2018_africa.pdf
    • http://revudipepofaten.myartsonline.com/public_relations_manager_job_description.pdf
    • http://ladurabazidema.onlinewebshop.net/anti_ulcer_agents_pharmacology.pdf
    • http://buzumigasox.myartsonline.com/15851809827.pdf
    • http://rokutore.rf.gd/how_to_login_facebook_in_pc.pdf
    • http://xixusavexu.rf.gd/74316944905.pdf
    • http://dopisudul.epizy.com/29026320235.pdf

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