Malicious PDF — malware analysis report

Static analysis result for SHA-256 03eddaf9623e305c…

MALICIOUS

PDF

45.4 KB Created: 2020-11-05 07:06:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 8441bd67e513cae0aa90d52a4f17db1a SHA-1: d77d6763d17440d82b4c90582da69bb1b6b72f53 SHA-256: 03eddaf9623e305c52f85498f760a7d15ff14b4aed44c1d0b0728751ab0ba443
94 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/123?keyword=electric+man+3+hacked In PDF document text
    • https://cdn-cms.f-static.net/uploads/4393183/normal_5f9c525ec1991.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411490/normal_5f98f942580cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384655/normal_5f95edc699ea5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366676/normal_5f8b9ad64e990.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/dd171c06-3d04-46fc-807b-e89c8bc6cc64/beautiful_now_lyrics_video.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcb7efa2-ff5b-4d02-9687-35a96db3b780/xamivubebikutexi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/932a5e40-6c80-4dbe-a485-3d580a3969d2/asterix_and_obelix_comics_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63f40de1-aee0-4cba-916c-d8ee476d97b3/79977825617.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/hmh_social_studies_workbook_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aee59cf0-77fd-4890-8085-136309273e3b/43599289748.pdfIn PDF document text
    • https://s3.amazonaws.com/magapeguwabe/system_approach_to_management.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/siletenisedifedi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000679a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x679A 4864 bytes
SHA-256: 66c73deb00db2a2e0224a8b84476f9c20d3bfc1ed22b985ed88f64bbf89a4ba8
font_01_sfnt_off000077db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77DB 10260 bytes
SHA-256: 273867cd7fee8373965e68b3479ed4d020095b33dab316fb70d140f040aec984
font_02_sfnt_off00009aca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ACA 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34