Malicious PDF — malware analysis report

Static analysis result for SHA-256 19eaceb22322d084…

MALICIOUS

PDF

89.0 KB Created: 2021-04-15 12:20:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 13762148494adce35c3d0e6ddaf23e0c SHA-1: b433ca1a3df3c660abc7f69c4ac3fffa75ddcccb SHA-256: 19eaceb22322d0843654006ebedeac02ae0a6a4bc712f7a88c480db0f4b61ceb
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to 'Jlab earbuds charging cord', suggesting a lure to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://kuzutuzo.ru/strik?utm_term=jlab+earbuds+charging+cord
    • https://static.s123-cdn-static.com/uploads/4413705/normal_600752d35d776.pdf
    • http://basumoxivor.sportsontheweb.net/lajedo.pdf
    • https://cdn-cms.f-static.net/uploads/4474456/normal_6062365d8dc13.pdf
    • https://static.s123-cdn-static.com/uploads/4387581/normal_5ffd517a8def6.pdf
    • https://cdn-cms.f-static.net/uploads/4384037/normal_601d29fa2cdb3.pdf
    • https://cdn-cms.f-static.net/uploads/4410714/normal_603f4f7c70396.pdf
    • http://eferevole.com/zitukaxmqwdl.pdf
    • https://cdn-cms.f-static.net/uploads/4446394/normal_606d904f91d0d.pdf
    • http://klokisik.space/kufavomiwizorevelekunexwhz9.pdf
    • https://cdn-cms.f-static.net/uploads/4368225/normal_602acc87bf896.pdf
    • https://cdn-cms.f-static.net/uploads/4376610/normal_60359f692a5af.pdf
    • http://jsexj.fun/how_to_bring_wealth_in_your_life03upi.pdf
    • http://businesslinecenter.com/dirt_devil_stick_vacuum_parts8485k.pdf
    • https://cdn-cms.f-static.net/uploads/4372100/normal_5fe6a749a568f.pdf
    • https://cdn-cms.f-static.net/uploads/4491450/normal_60291bf73137f.pdf
    • http://julivojurukumu.sportsontheweb.net/tipos_cancer_de_estomago.pdf
    • https://static.s123-cdn-static.com/uploads/4475562/normal_6003f8765e25b.pdf
    • https://cdn-cms.f-static.net/uploads/4502464/normal_60383c63594d0.pdf
    • http://matras-24.ru/backup_android_app_data_to_google_drivekigt0.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://foxukekamusun.onlinewebshop.net/ir_chart_functional_groups.pdf
    • https://uploads.strikinglycdn.com/files/f1f3f1ba-a1bf-4429-b1e5-8088e9a55ecb/sedazazumovi.pdf
    • https://uploads.strikinglycdn.com/files/6be2e683-58bb-4c71-81c7-8edc911e17e8/mepisopibewolavazo.pdf
    • https://uploads.strikinglycdn.com/files/c2821395-7b8c-4cc4-9b26-2cb907e7fc33/how_can_i_help_my_adhd_child_with_social_skills.pdf
    • http://lexekuduwowig.atwebpages.com/adobe_reader_pro_download.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f22e.bin
47e0e39af0d32635e4430254bb94a69254f491f739ec4233431f9aef5ce4942b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF22E 9200 bytes
font_01_sfnt_off00011063.bin
262e8576e11ca439919ba1f0f8ca46179787a91eb5fdbe44ea398247485ed187		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11063 5132 bytes
font_02_sfnt_off000121b6.bin
10502b4916fc31bf9d013b15750d6959dfb09cae5dbae943928fd963c2e19b07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x121B6 11096 bytes
font_03_sfnt_off00014763.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14763 4324 bytes

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