Malicious PDF — malware analysis report

Static analysis result for SHA-256 369343a5e02d175d…

MALICIOUS

PDF

85.9 KB Created: 2021-05-03 19:32:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: cd20999f4039626b17ef559e754cc058 SHA-1: 3e8f1ebc1cdc582e17337ddc8a62f72ad31d589c SHA-256: 369343a5e02d175d12d77a3396d0dcaa1b8c86b2fa39df040daa4479c03a8c0b
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high probability of malicious intent. It contains an embedded URI pointing to 'xezojetit.ru', which is likely a phishing or malware distribution domain. The document body, though heavily obfuscated, contains strings related to search terms and application metadata, suggesting a lure to disguise the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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://xezojetit.ru/strik?utm_term=calories+taco+bell+chicken+soft+taco+supreme PDF link annotation
    • http://luxomozuk.mypressonline.com/bsf_tradesman_syllabus_2020.pdfIn PDF document text
    • http://sotarebesowula.medianewsonline.com/afbeeldingen_samenvoegen_in.pdfIn PDF document text
    • http://zuxemesemubozo.mywebcommunity.org/advanced_java_project_report.pdfIn PDF document text
    • http://xelibirujegid.mywebcommunity.org/tutorial_dreamweaver_8_bahasa_indonesia.pdfIn PDF document text
    • http://gefosezidubajoz.scienceontheweb.net/rimewimexetidewumodaz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/puriwaremuvini.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5cbe498-c37a-472f-9c73-c5ce950b7ca3/ps4_headset_gold_mic_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/moon_druid_guide_dnd_5e.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/63587904070.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/cold_working_and_annealing_lab_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea383e42-e76f-4574-9d60-5751bc4183e0/xezamafuzevexewemodegemek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/beb2b3f6-997d-4fef-8713-83e7fcc3c7c0/belkin_n300_wireless_range_extender_f9k1015v1_setup.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/25344241939.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b29ff331-bf8d-4942-b09b-3ce67f7c8fb3/what_do_wolves_represent_in_native_american_culture.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c1e6d4b-8fae-4bbe-88c1-51413732f3f9/is_50_shades_of_grey_on_apple_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/18555789302.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d18cad07-b867-462e-90e3-599943e6acba/62000974989.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1b21a15-24b6-4f06-9d01-9797be3524b2/singer_futura_quintet_5_in_1_sewing_embroidery_machine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d403243-f4cc-45a8-92f0-2b97e592d835/kenmore_mini_ultra_sewing_machine_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4b7ccb3-8c46-4c89-92a1-2f0da0260a20/84560704184.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61dfd203-a8f7-4777-8a29-7fb953af34b9/13150759839.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/sipidedoz.pdfIn PDF document text
    • https://s3.amazonaws.com/libosokune/87105806214.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/offer_letter_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/91839634515.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65dcb960-2b07-46d7-9b53-0ccdc16a3d5a/reweza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a69aa27-ad0e-4c0d-9d7e-7caad7512b1e/badorumi.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_off0000fb21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB21 5364 bytes
SHA-256: 6259b6f98278821b3b982820c84e1f07695a98cccb8311db4cf56b98d940a360
font_01_sfnt_off00010d31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D31 11408 bytes
SHA-256: 82ef7b4d2fdee46cedc6461f150e52d6f67930cd68e1a24a06eca9c58e230fe7
font_02_sfnt_off00013405.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13405 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15