Malicious PDF — malware analysis report

Static analysis result for SHA-256 584034c91897b09e…

MALICIOUS

PDF

43.5 KB Created: 2020-10-29 11:37:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 925c2952e53cbc0573e34ccdfdb82506 SHA-1: 74bf64d2233462e12f665e83230887107ac0f1a3 SHA-256: 584034c91897b09e44262cb66329ad16ce2ce6d751c19e1a091ad7b828e1ff6b
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ggtraff.ru/aws?keyword=smart+parts+ion'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious URL indicates an attempt to lure the user to a compromised site, likely for phishing or further malware delivery.

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/aws?keyword=smart+parts+ion In PDF document text
    • https://cdn-cms.f-static.net/uploads/4424997/normal_5f9a46c07886f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383912/normal_5f93c3f08a26f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367297/normal_5f87f6c9d42a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369149/normal_5f883512e3112.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380531/normal_5f8f04eed6537.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381094/normal_5f8df3b394af1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369149/normal_5f88b2cd2d14f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366666/normal_5f8730b541b70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388421/normal_5f91e795374d2.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/vazisi/solve_equations_word_problems.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/bulezexar.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/body_parts_name_in_english_to_hindi_with_pictures.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/aide_memoire_technique_tuyauterie.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/80364790772.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/kavovitamit.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/60690747674.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/89513478140.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/body_parts_worksheet_for_grade_2.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/89188556460.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/cv_assistant_comptable_dbutant.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/89239238805.pdfIn PDF document text
    • https://s3.amazonaws.com/jeduzizonox/smoke_on_the_water_guitar_tab.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_off00006946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6946 5036 bytes
SHA-256: fe5b33ea005dbbdfa3f8c82cf86e409873bf61c500854c881cb1f6a90287741b
font_01_sfnt_off00007a47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A47 11420 bytes
SHA-256: 83272055b3077e685ce97661373ceff2ac32f49b09824bce9b94f49262ebcb16

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