Malicious PDF — malware analysis report

Static analysis result for SHA-256 64a7d64d1360f87c…

MALICIOUS

PDF

82.7 KB Created: 2021-06-01 15:19:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 349da6fc9bc46ebacaf95711a67287ed SHA-1: 3f19605d3563b085dd69621d4099cb2c0ba324c9 SHA-256: 64a7d64d1360f87ce83fa50d02655008759d078ee0e526fd605bb8a7a1af5fda
126 Risk Score

Malware Insights

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

This PDF document is flagged as malicious by multiple heuristics and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to disposable hosting and are likely part of a link farm designed to redirect users to malicious sites. The presence of external URIs and the 'link farm' heuristic strongly suggest this document is intended to facilitate phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://allytemp.ru/pbw?utm_term=yvonne+chaka+chaka+thank+you+mr+dj+youtube PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4426687/normal_6008b51635671.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415292/normal_605a380685f36.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416666/normal_600f2a32e1380.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488804/normal_6045143897d17.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jijagenaneke.pbworks.com/w/file/fetch/144451086/eagles_hotel_california_lyrics.pdfIn PDF document text
    • http://gufabewa.pbworks.com/f/american_hookup.pdfIn PDF document text
    • http://sinorodolu.pbworks.com/w/file/fetch/144460182/wukagewajareziwujo.pdfIn PDF document text
    • http://povelin.pbworks.com/w/file/fetch/144422994/56787617088.pdfIn PDF document text
    • http://paderukut.pbworks.com/w/file/fetch/144443652/59382223242.pdfIn PDF document text
    • http://xedidovetaw.pbworks.com/w/file/fetch/144412794/can_a_man_build_muscle_after_40.pdfIn PDF document text
    • http://gatasulupu.pbworks.com/f/60775476912.pdfIn PDF document text
    • http://fisukafetif.pbworks.com/w/file/fetch/144424650/red_dead_redemption_2_mission_list_in_order.pdfIn PDF document text
    • http://lekipirunezi.pbworks.com/f/maquinado_de_materiales_cermicos.pdfIn PDF document text
    • http://togusan.pbworks.com/f/sonic_the_hedgehog_2_xl_unblocked.pdfIn PDF document text
    • http://wamotarirup.pbworks.com/f/gloud_games_pro_hack_apk_download.pdfIn PDF document text
    • http://wixugigir.pbworks.com/w/file/fetch/144458988/68842525094.pdfIn PDF document text
    • http://pamotekegopa.pbworks.com/w/file/fetch/144439587/68309937168.pdfIn PDF document text
    • http://kibumezi.pbworks.com/w/file/fetch/144460335/roblox_apk_mod_unlimited_robux_2020.pdfIn PDF document text
    • http://zeladejan.pbworks.com/f/40359719456.pdfIn PDF document text
    • http://betosaxugawi.pbworks.com/f/32862715998.pdfIn PDF document text
    • http://giwupiraride.pbworks.com/f/when_to_use_failure_mode_and_effects_analysis.pdfIn PDF document text
    • http://papoxuva.pbworks.com/f/71629532524.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE871 5372 bytes
SHA-256: 89ec98f9ffce8b0d2be5c921138de0c92a260404f058bd23b021eea7194e7286
font_01_sfnt_off0000fa9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA9F 10932 bytes
SHA-256: 8d4d6e593a5242c9ab307347875ead81a4ec55e595e7cc7273a18677ce4ed2fc
font_02_sfnt_off00011f65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F65 18268 bytes
SHA-256: 6d495436e930fd2093b251e787c6407f1b499bc6bfb0839d20dd7021d4eaff17

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