Malicious PDF — malware analysis report

Static analysis result for SHA-256 766b7ec2d1f9e5fd…

MALICIOUS

PDF

94.0 KB Created: 2021-05-31 09:43:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 630f74ce65536a10edf98c749c8a9947 SHA-1: d584722b27aa1cd0bc223c7d99c1cee7200b5219 SHA-256: 766b7ec2d1f9e5fd0023979722570654e95fd6e87a86f01ab6f7c296130ee1ea
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for an external URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The embedded URL is likely intended to redirect the user to a phishing or malware download site. No scripts were extracted, but the presence of a malicious URL and the ML classifier's high confidence suggest a phishing or trojan delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/strik?utm_term=arctis+pro+wireless+setup+ps4+slim PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4485809/normal_60242e6ed551a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380707/normal_605a974f7f297.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410190/normal_5ffa6be0e4583.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459641/normal_5ff5e0e97c3b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366325/normal_6027cd2e2dd61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492546/normal_606237885320e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/e0b3fe3d-9017-49d2-b40f-e48f86cdfb2d/mcculloch_string_trimmer_carburetor_adjustment.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/201ceb68-3c2b-4f6a-a0a8-1a69ae65c4de/the_how_of_happiness_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/226b4c1f-848c-46ff-8c34-39f5b9983c94/how_to_get_land_grants.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a81a28b6-2700-4679-9197-0d5788ca6a50/ejercicios_de_condicional_en_espanol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb1d7347-d5be-4091-94e7-e79ff5f004d6/17823115158.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c315de6-3f23-41ff-9b80-064e6934de6e/gudapulofufibezudeser.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d6bf5d3-ea27-4ea8-8aae-b82852a69c1e/sewogoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35418098-e788-4558-a4b1-0a57dcbe50b3/yoga_positions_names_in_english.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77f17925-7b25-4676-a940-d9773304ec85/papozamoxetolerogetafopi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9c96fd2-20dd-47f7-955c-96c10ccbc5ec/what_is_idt_audio_driver.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a78e81b6-91ad-4960-bcbc-feca06f32b2a/avital_alarm_7352l.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30dac093-0d16-4198-99e4-c742622ed8cb/consecutive_integer_word_problems_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d84b8548-144d-4300-9c3f-851c87bdeb2c/grade_1_math_worksheets_addition_and_subtraction.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c06441f7-4e4b-406c-b65d-9db166e852cb/my_ge_washer_doesnt_spin.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000111df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111DF 4728 bytes
SHA-256: 867cfa024f072a3d4b48cb15cdb2d43694e83af705a8093b85be0135cebaa86c
font_01_sfnt_off00012260.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12260 4816 bytes
SHA-256: 1233fc68f50505d2573f773521864b310a6c61619a89e1a2454db9769e179b61
font_02_sfnt_off000132df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132DF 12136 bytes
SHA-256: fb53f359a1ac9b7677d077a5c90933d77ab66832b59629e4ae0174cc1b5c41e1
font_03_sfnt_off00015a9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15A9D 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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