Malicious PDF — malware analysis report

Static analysis result for SHA-256 3858a0ed6282ae3b…

MALICIOUS

PDF

78.9 KB Created: 2021-03-15 12:24:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 6a86ffb78a972d76f16b08c05f6b8e36 SHA-1: 88d516bcc52f08a54dd6393911bdf8a3eeaaaec7 SHA-256: 3858a0ed6282ae3b50f6d9afba02fe41a3cd4ce2cc1ae8f2b237ee19b696cbfc
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to 'bologen.ru', which is a strong indicator of a phishing or malicious redirection attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to lead the user to a malicious site, likely for credential theft or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/strik?utm_term=casos+de+uso+ejemplos+software PDF link annotation
    • https://cdn.sqhk.co/vomemubevu/aqheije/space_frontier_2_planets.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/ig1BCjh/dragon_quest_11_costumes_stats.pdfIn PDF document text
    • https://cdn.sqhk.co/libobivole/geiajhE/free_online_alarm_clock_for_heavy_sleepers.pdfIn PDF document text
    • https://cdn.sqhk.co/xuzuvazol/Hv1I1jf/15951994253.pdfIn PDF document text
    • https://cdn.sqhk.co/wopidevepip/higeggu/22064918790.pdfIn PDF document text
    • https://cdn.sqhk.co/vokalater/thj9jg5/menhera_kun_and_friend_wastickerapps_ending.pdfIn PDF document text
    • https://cdn.sqhk.co/motulobugaji/nhajjhe/dragon_mania_legends_cheat_engine_android.pdfIn PDF document text
    • https://cdn.sqhk.co/mazoviwovusi/fwiiGH6/3637461497.pdfIn PDF document text
    • https://cdn.sqhk.co/kazaluxi/NgdEjdc/12058011878.pdfIn PDF document text
    • https://cdn.sqhk.co/jevamivuvugi/hhhjQjh/age_of_history_americas_ib_textbook.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbf46c4a-e5bb-419d-97cf-7cdf78a11253/vizio_sb2920-d6_review.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/31321735450.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3889998b-f430-446e-b8d7-bbb1db4a9d8b/60461041441.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f95e946d-e0a4-48e1-a037-e4c23c09da8b/mubagovipubesopi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3206a171-1b9d-48bc-8454-8c8d3a8b25af/effective_leadership_and_management_in_nursing_8th_edition_test_bank_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/how_do_i_connect_my_canon_mg2922_to_wifi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65f284b6-1aa6-45ed-8f3b-0694db352db2/66572142717.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18fa1d64-2ed3-49ae-87b1-96bf34c57dcd/31000965315.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1aecd487-02de-4c1a-9dc4-de5b6e9c1c4b/weed_eater_featherlite_plus_fl26_price.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e70719d-877e-41e3-8533-9a7494d30a51/what_are_the_three_fundamental_principles_of_informed_consent.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f592.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF592 5260 bytes
SHA-256: fb14390fd47d9d724c28d41f3f1ea634b80fe615f0f12b07999e193845e77684
font_01_sfnt_off0001076f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1076F 11484 bytes
SHA-256: df1077a934647174f1fd2e84c9371b382f18c017d99e8d6383572511e2511076

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