Malicious PDF — malware analysis report

Static analysis result for SHA-256 327f82dacb213b5f…

MALICIOUS

PDF

84.2 KB Created: 2021-04-05 15:17:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: ad920efcfc144c43e0ac83e37424d41a SHA-1: b9d0978c241cb390191325b02933f6fa1b242b33 SHA-256: 327f82dacb213b5f8fb65ee6161b69e0439f58b138f73d0a88cd3dd9ff863e02
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to a URL that mimics a legitimate file download, suggesting an attempt to trick the user into downloading further malware. The document body, though heavily obfuscated, contains keywords related to a price list, reinforcing the lure.

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://nipisod.ru/award?keyword=braco+cable+gland+price+list+2020+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4477916/normal_6064463e9fef3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444630/normal_605f8194d3b5d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421462/normal_5fef3571dcab3.pdfIn PDF document text
    • https://cdn.sqhk.co/molodomo/ShzhafR/history_of_africa_kevin_shillington_ebook.pdfIn PDF document text
    • http://motegolev.22web.org/food_production_manager_jobs_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/fijajiles/nvhdZjj/good_fnaf_fan_games_scratch.pdfIn PDF document text
    • https://cdn.sqhk.co/niminililez/dggibFM/hashtags_for_instagram_best_popular_hashtags_on_twitter.pdfIn PDF document text
    • https://cdn.sqhk.co/pixafosabow/RiijjXG/67793516192.pdfIn PDF document text
    • https://cdn.sqhk.co/nebinefis/gjbobjd/russian_car_drift_para_hilesi_indir.pdfIn PDF document text
    • https://cdn.sqhk.co/natokaze/c8pggi9/68434492573.pdfIn PDF document text
    • https://cdn.sqhk.co/tumupowe/fpggUEF/wordscapes_level_809.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500882/normal_60125a17bcfaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391907/normal_6068544ac36b7.pdfIn PDF document text
    • https://cdn.sqhk.co/naxusepimosa/dijg0wG/fortnite_skin_color_ranking.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459483/normal_5fde1c8f8acc8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407664/normal_601fd8df33d0e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459029/normal_602c74e3a65aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424361/normal_6056f1e0618cf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/nosepevozux/bet_soul_train_awards_2016_performers.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/88657257758.pdfIn PDF document text
    • http://jowazojulowidag.epizy.com/alternating_current_examples.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e903.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE903 5576 bytes
SHA-256: d9f064aa3e91af1aae7defd0693a044ff9a799f0dd9113b2e0c02b533e28b811
font_01_sfnt_off0000fbf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF2 10380 bytes
SHA-256: b0f56963b8ff8011309261070b0be856a3e0b2577a56bd060bf75d07b133ea31
font_02_sfnt_off00011f78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F78 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6
font_03_sfnt_off0001348f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1348F 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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