Malicious PDF — malware analysis report

Static analysis result for SHA-256 9196433d1716c97d…

MALICIOUS

PDF

70.9 KB Created: 2021-03-29 14:21:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 21aa6cbed227271e14459502f659242a SHA-1: 15808b03d764920e5d8a7ada8edabdf16dafc911 SHA-256: 9196433d1716c97d1e899484efe8bfe5ab3805f25be2b5205ba085ac95310e49
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of numerous embedded URLs suggests a phishing or malware distribution attempt, likely masquerading as a calendar file. No scripts were extracted, but the PDF structure and embedded URIs point towards a malicious document designed to trick users into visiting malicious sites or downloading further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://jumiwimov.ru/award?keyword=calendario+dezembro+2020+pdf
    • https://cdn.sqhk.co/xororasomig/GhfDQmf/space_invaders_infinity_gene_pc_download.pdf
    • http://begemotiks.space/90539111251xzmbk.pdf
    • https://cdn-cms.f-static.net/uploads/4479454/normal_601ae13aa0f6c.pdf
    • http://pubgmobiie.com/jine_mera_dil_lutiya_mp3ldnsn.pdf
    • https://static.s123-cdn-static.com/uploads/4473056/normal_60010e4691e20.pdf
    • https://cdn.sqhk.co/levuzivanu/Wgdghh8/mizovusodusanarepixilib.pdf
    • http://vpntop.info/639045713209wu9w.pdf
    • https://lilikegemuvil.weebly.com/uploads/1/3/1/3/131398424/5724691.pdf
    • https://cdn-cms.f-static.net/uploads/4445333/normal_604b9890e31c1.pdf
    • https://tabetigilazewa.weebly.com/uploads/1/3/5/3/135392987/penofoxerolasa_bawusepakisori_bokizibegebaval.pdf
    • https://cdn.sqhk.co/girewobo/JXjhBNH/mutant_fighting_arena_unblocked.pdf
    • http://ing-cliente.com/ralph_waldo_emerson_poems_success3ff3j.pdf
    • https://retagavit.weebly.com/uploads/1/3/4/3/134363188/letelipipevozifajoga.pdf
    • http://jemulobapamiwu.mywebcommunity.org/95536093779.pdf
    • http://motivawka.online/45118178615b30tl.pdf
    • http://bewewafip.scienceontheweb.net/copy_of_oa_grey_sheet.pdf
    • https://cdn.sqhk.co/senosekagoko/Fihific/puritivurelazugo.pdf
    • http://tisejamebip.sportsontheweb.net/18469985305.pdf
    • http://bazunujovi.scienceontheweb.net/woladawedagazovomipavexu.pdf
    • https://tujewadis.weebly.com/uploads/1/3/5/3/135312055/8716242.pdf
    • https://xaxidotuviw.weebly.com/uploads/1/3/0/9/130968933/fesatufasol_zositok_vasadizile_lebofak.pdf
    • https://cdn.sqhk.co/vagizabibo/HxidGta/photo_transfer_app_iphone_desktop.pdf
    • http://mozobadijoba.medianewsonline.com/vonubafinev.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jetotajasavesi.atwebpages.com/video_games_lana_del_rey_sheet_music.pdf
    • http://tofilijewok.atwebpages.com/11756451680.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d571.bin
d6dc4797cc5c1ca4bf9b738cdd5ef48c9e25bd2f3b7377ac66f9f098bc9c9857		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD571 5380 bytes
font_01_sfnt_off0000e7a0.bin
ad5ebe68d8960cab78c54be961dea992f7ed139c3ebebf8734b8897acfd16a04		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7A0 11848 bytes

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