Malicious PDF — malware analysis report

Static analysis result for SHA-256 26e068e3b404f8a5…

MALICIOUS

PDF

74.0 KB Created: 2021-04-02 22:03:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 7b0c018ab30aaba10592b8203b4ef764 SHA-1: e919f70bca27b6e2c201129bb3144a2cc63f1aad SHA-256: 26e068e3b404f8a5a1953512f42a8ac638fbe5370822a87d915dc2af5b1bb695
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious URL. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be related to a product, suggesting a lure for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://leonvi.ru/strik?utm_term=chamberlain+clicker+universal+remote+control PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417308/normal_5fd3d0d98a9c6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390052/normal_5fcb5b453b1bd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460450/normal_60043e01cdad9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426820/normal_5fcbb46b11de7.pdfIn PDF document text
    • http://dipenoguzel.sportsontheweb.net/kitchen_interior_design_catalogue.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453747/normal_6038543f9d25f.pdfIn PDF document text
    • http://jabilevij.mypressonline.com/shell_scripting_cheat_sheet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499972/normal_5fc5934a0c8f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470703/normal_60238e587a9da.pdfIn PDF document text
    • http://zuragaretezi.iblogger.org/what_oil_does_2018_jeep_grand_cherokee_take.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/rakabexozu/gumukuberobav.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/pedaleira_zoom_a2.1.pdfIn PDF document text
    • http://mafavijudewu.rf.gd/zogapekapolo.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/gafonutixemubojobajobag.pdfIn PDF document text
    • http://pofiron.rf.gd/irobot_roomba_560_replacement_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/english_vocabulary_test.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/crash_bandicoot_game_boy_advance.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/ada_guidelines_diabetes_elderly.pdfIn PDF document text
    • https://s3.amazonaws.com/sefukirexuwekij/31774385997.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/plan_de_negocios_food_truck_mxico.pdfIn PDF document text
    • http://zifelasevodaguv.rf.gd/el_poder_del_nombre_de_jess.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/474777878.pdfIn PDF document text
    • http://mezajuwobit.rf.gd/58420359963.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_off0000e3d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3D7 5208 bytes
SHA-256: 6f130f929e221dc828fb2166fdd39c5245bb9bc6cda8bd5fb06483fc79bb6b50
font_01_sfnt_off0000f55f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF55F 10956 bytes
SHA-256: ef232c6176440e8cce47f777b546cd7428cfd9ac16735c92ef56327782ae2ee9

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