Malicious PDF — malware analysis report

Static analysis result for SHA-256 580b60c7b77a12a5…

MALICIOUS

PDF

79.5 KB Created: 2021-03-29 10:59:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad33ccac6e37cb4c65a3685892f6c358 SHA-1: 967148178303c9510bff500045318dd0bdc71fd1 SHA-256: 580b60c7b77a12a584fcb23684d0eef8db03f270fa0ad986b6fc1a57495e332b
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URL pointing to 'lozipotod.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a date, suggesting it was generated programmatically to appear as a document. No scripts were extracted, but the presence of an external URI and the overall detection profile strongly suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

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://lozipotod.ru/wix?keyword=jrotc+raiders+requirements
    • http://solasaxutegi.iblogger.org/sample_standard_unqualified_audit_report.pdf
    • https://cdn.sqhk.co/jutafegobexe/VSCje7v/74386390864.pdf
    • https://cdn.sqhk.co/movozuba/5VLMUjb/54090033478.pdf
    • http://shopyou.online/amar_chitra_katha_google_driver49gx.pdf
    • http://wojurimaxab.mywebcommunity.org/fawinuseso.pdf
    • http://dk-inc.xyz/250422484lv8ik.pdf
    • http://kismyketio.com/will_there_be_a_season_4_of_seal_teamuwv45.pdf
    • http://laribij.scienceontheweb.net/righteous_mind_book.pdf
    • http://bujupete.iblogger.org/zefazexavadot.pdf
    • http://wedasuf.getenjoyment.net/namonoregojomu.pdf
    • https://cdn.sqhk.co/pimepojuti/fhafhcG/rusted_warfare_rts_strategy_apk_free_download.pdf
    • http://moymagazin.xyz/nipemexatozavovuhpfxr.pdf
    • https://cdn.sqhk.co/wenavuso/3vAheyL/jaani_dushman_songs_ming.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://matufuw.rf.gd/stream_windows_games_to_android.pdf
    • https://uploads.strikinglycdn.com/files/ef96094b-5e6d-42f0-b183-8a0e20b82ebe/flowers_in_the_attic_movie_2014_full_movie.pdf
    • https://uploads.strikinglycdn.com/files/be69db68-609e-445a-84d1-0430249acb44/70818578854.pdf
    • https://uploads.strikinglycdn.com/files/dd81fade-c020-4f79-bd22-00cea5c51153/17697850829.pdf
    • https://uploads.strikinglycdn.com/files/fca449a6-f7d0-4952-9462-32b640b35313/c_programming_a_modern_approach_2nd_edition.pdf
    • https://uploads.strikinglycdn.com/files/23e5f6a5-4c99-4a1b-817e-2e5d7d1506c0/how_to_calculate_mean_on_ti_30x_iis.pdf
    • https://uploads.strikinglycdn.com/files/0e0cf5f2-dfc7-421d-a54c-19cf9ae6881b/how_does_the_book_misery_end.pdf
    • http://palelezugob.onlinewebshop.net/91677711522.pdf
    • https://uploads.strikinglycdn.com/files/2e956312-13bd-4daa-8f13-0d9bd7cc3258/el_poder_del_ayuno_y_la_oracion_biblia.pdf
    • https://uploads.strikinglycdn.com/files/f01c51c0-7d94-4e90-a534-fd48ed4bd262/76645856658.pdf
    • http://sodarag.epizy.com/calculation_of_bonus_in_excel_sheet.pdf
    • https://uploads.strikinglycdn.com/files/7fef41e4-4061-4013-97d5-53a73ede731e/hampton_bay_ceiling_fan_remote_does_not_work.pdf
    • http://xogaduzop.atwebpages.com/world_time_zones_worksheet.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f124.bin
10a07fc969e6c8cf41398fcfefa625e426b29a45b33f3716d0886db1405c0d2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF124 2900 bytes
font_01_sfnt_off0000fb67.bin
e21fec6272bab567e12380de6c22d0c907e57439846660be815290ea217cf67e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB67 5168 bytes
font_02_sfnt_off00010ce5.bin
345b888887b9c99de940dddcf57a40b9ed3426c087b515a5b84968325cad92ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10CE5 10168 bytes

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