Malicious PDF — malware analysis report

Static analysis result for SHA-256 8429a58cf8b67eb7…

MALICIOUS

PDF

78.4 KB Created: 2021-02-16 02:33:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 89fc92cd0ca3fd5b3968213fe4cee2f1 SHA-1: 30331a24f5dad8d42379731f5e66febe8e0fd791 SHA-256: 8429a58cf8b67eb7142fd08392722cff24e4d15da58db19854fc0ded603dfe3a
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to produce information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/strik?utm_term=what+is+seasonal+and+regional+produce PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4390069/normal_5fd8548d905ce.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/chiNijN/dot_to_dot_connect_the_dots_apk.pdfIn PDF document text
    • https://lorolefe.weebly.com/uploads/1/3/1/8/131871725/170564.pdfIn PDF document text
    • https://cdn.sqhk.co/xaranoraf/fichagd/download_dino_factory_mod_apk_android_1_coc.pdfIn PDF document text
    • https://wimukevefom.weebly.com/uploads/1/3/0/7/130739067/4099321.pdfIn PDF document text
    • https://cdn.sqhk.co/lapefuxolu/UjighbB/radio_online_usa_talk.pdfIn PDF document text
    • https://cdn.sqhk.co/wikaraxixi/iidgjhH/forge_of_empires_the_king_statue.pdfIn PDF document text
    • https://cdn.sqhk.co/tuxonewebuke/Dgh3jeH/95983409088.pdfIn PDF document text
    • https://cdn.sqhk.co/pimidima/cRjcyii/13861848603.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366959/normal_5fe3475a2dc73.pdfIn PDF document text
    • https://wivezinafixozut.weebly.com/uploads/1/3/0/9/130969190/2649778.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/lazolu/form_submit_on_button_click_jquery.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/50305692629.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/lexugitekuxonezudesok.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_off0000e0c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C8 6256 bytes
SHA-256: 1c9b85470a3bc8132929c8ec4bcda0f36aa3b1c4f1e482f3971b1b90ecdec8b5
font_01_sfnt_off0000f5d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D4 5348 bytes
SHA-256: dcf39147738f11693cb0f958fa0b151117f3f3b1074437676795d830e2848cd0
font_02_sfnt_off00010807.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10807 10544 bytes
SHA-256: f246d6eb0021761f6871deef875cf8c8c3550ed0cb9bd82002574a6bec2eec23