PDF static analysis report

Static analysis result for SHA-256 529734532a080bbc…

SUSPICIOUS

PDF

76.3 KB Created: 2021-04-16 02:09:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3814cfb02ed428dbdc0793263df0e2ae SHA-1: b453728dbd22f5a059f2d0eff24a8e3d704e2aa2 SHA-256: 529734532a080bbc45e2902719b73f1252427edf7c7da4ec74694f2d0a0641c3
36 Risk Score

Malware Insights

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

This PDF document was flagged as suspicious by an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 3

  • 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://zajinet.ru/strik?utm_term=mathematics+workbook+for+grade+4 PDF link annotation
    • https://cdn.sqhk.co/buzomesil/stDhfhd/bingo_ear_drops_content.pdfIn PDF document text
    • https://cdn.sqhk.co/wafasojudo/zjbl6Kh/weed_farm_game_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/suzironanes/Xwligge/64104044619.pdfIn PDF document text
    • https://cdn.sqhk.co/noxivudeva/2iiQijI/ants_go_marching_one_by_one_chords.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446286/normal_601907108b198.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502188/normal_60043f63470dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497359/normal_605a5523005ae.pdfIn PDF document text
    • http://wuvagawok.22web.org/yamaha_mg82cx_setup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485935/normal_60240589dccd5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393916/normal_5ff69a06af5da.pdfIn PDF document text
    • https://cdn.sqhk.co/kunimanujage/joMidk9/naxeex_superhero_mod_apk_old_version.pdfIn PDF document text
    • http://paguwob.22web.org/adding_and_subtracting_polynomials_color_by_number.pdfIn PDF document text
    • https://cdn.sqhk.co/rorezina/dibidjj/8147560244.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/lodazojamuva/graco_fastaction_travel_system_with_snugride_30_jane_fashion.pdfIn PDF document text
    • https://s3.amazonaws.com/kimone/are_history_books_accurate.pdfIn PDF document text
    • http://dixomivagarulo.rf.gd/kabudojenuporetubexe.pdfIn PDF document text
    • https://s3.amazonaws.com/kiremefegonar/vizilabimejasikunizu.pdfIn PDF document text
    • https://s3.amazonaws.com/vabemavuputenif/cyberpunk_2077_run_on_xbox_one_s.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/resensi_novel_the_hunger_games_catching_fire.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/1711386924.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/gijusilapezi.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_off0000e7b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B2 5792 bytes
SHA-256: 7a0d7bf1e047f1dc1d352b2b61c2e6571226657870e963303b178b8304fc2a3b
font_01_sfnt_off0000fb67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB67 11340 bytes
SHA-256: 7e5412f2f9286e3dea8b133b7156090869650486a3d76426889b7b23bab5640b