Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e237678156e4e31…

MALICIOUS

PDF

76.7 KB Created: 2021-03-16 18:49:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ff1c41b8632e835d064993c6b47fe5c SHA-1: 7b47a5fd918686a0093529180b627ed3bd860020 SHA-256: 6e237678156e4e31444604509c1ebbd3f896bc4d6c3e7783e336ff069ad358e4
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a malicious domain, disguised with a search query. ClamAV detection and ML classification strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of external URIs suggests an attempt to lead the user to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://nipisod.ru/strik?utm_term=harry+potter+4th+movie+characters
    • http://lnstagramcopyrigtservice.com/buffalo_wings_imagesi8j0r.pdf
    • http://meetplafond.xyz/rubik_s_cube_notation_guide6p4na.pdf
    • http://study-english-04.space/materia_y_energia_quimica_generald4mip.pdf
    • http://topstop.site/xuritajutixulujipazukusana8l7a.pdf
    • http://kufemotobenin.66ghz.com/fields_and_equipotentials_lab_report_conclusion.pdf
    • http://electorat.org/samsung_a10_frp_remove_tooldcrrv.pdf
    • https://cdn.sqhk.co/gotakavapu/8os0czp/fox_sports_go_app_not_working_fire_tv.pdf
    • http://strita.space/environment_friendly_powerpoint_templatesexaxu.pdf
    • https://cdn.sqhk.co/menasimax/ijgfieq/zazogefi.pdf
    • https://cdn.sqhk.co/malevevipali/g1p0KGx/movie_maker_windows_free_download_full_version.pdf
    • http://x-bionic.shop/how_to_type_alpha_on_a_mac59mcn.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tuxizowivu.rf.gd/what_is_place_value_in_multiplication.pdf
    • http://fivamoxopel.epizy.com/petigutu.pdf
    • http://rezumasalimod.epizy.com/what_is_another_name_for_green_beans.pdf
    • http://jegerusomeku.epizy.com/why_wont_my_water_dispenser_work.pdf
    • http://tesedep.rf.gd/61669357247.pdf
    • http://xubaforan.epizy.com/what_should_i_write_to_my_godson.pdf
    • http://givewafemuda.epizy.com/what_are_some_examples_of_economic_sustainability.pdf
    • http://jajowisomipuw.epizy.com/what_are_the_examples_of_3_laws_of_motion.pdf
    • http://pimisigejofal.rf.gd/network_speed_test_windows_10.pdf
    • http://mogerokefo.epizy.com/72624082645.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_off0000ecda.bin
6b135b9755c5156ecfb63e3dde33a87bc9c6cee122a21f78ebe8ec1c2fcfc3c4
pdf-font-stream PDF embedded font (sfnt) at offset 0xECDA 5352 bytes
font_01_sfnt_off0000fef9.bin
e91183feb592808ec720b95ca652ccb2fadcf314a5c981e7a6aede252537a766
pdf-font-stream PDF embedded font (sfnt) at offset 0xFEF9 11340 bytes