Malicious PDF — malware analysis report

Static analysis result for SHA-256 a381cf8b8c488697…

MALICIOUS

PDF

75.0 KB Created: 2021-02-28 19:39:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2f762aab929d5ce1794b31eda007101 SHA-1: d4804ed96587381998b6ec1402c51dab20cec963 SHA-256: a381cf8b8c4886975c053af62bd771455fdbe50d2fba08f49547e1508a52b41e
94 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious content. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The presence of embedded URLs and the ML classification suggest an attempt to exploit users through deceptive content, potentially leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8293

Heuristics 3

  • 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
  • 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://zajinet.ru/award?keyword=tokyo+ghoul+anime+rating+age
    • https://cdn.sqhk.co/gufojakig/yHhitjd/nail_art_kit_amazon_prime.pdf
    • https://static.s123-cdn-static.com/uploads/4447460/normal_5fe4f6ab0aa18.pdf
    • http://toppiksnack.xyz/90027968493puka5.pdf
    • https://woduluzotuni.weebly.com/uploads/1/3/4/3/134373450/786300cdc.pdf
    • https://cdn-cms.f-static.net/uploads/4486552/normal_601bba448b893.pdf
    • https://static.s123-cdn-static.com/uploads/4466161/normal_5fddb132b40db.pdf
    • http://opendouche.xyz/73829807358aiipb.pdf
    • http://natbeach.space/zusire2hzgx.pdf
    • http://fito4ka.xyz/jibosopidyz8ex.pdf
    • https://cdn.sqhk.co/posuwumujome/C7XZwgi/vudegi.pdf
    • http://vitrinachel.ru/does_the_poughkeepsie_tapes_show_real_footageqti93.pdf
    • https://cdn-cms.f-static.net/uploads/4367644/normal_600adbc408090.pdf
    • https://static.s123-cdn-static.com/uploads/4392207/normal_5fe58fe6194a4.pdf
    • https://cdn.sqhk.co/dukizukijire/hbnie0P/pounds_to_grams_conversion_calculator_online.pdf
    • https://cdn-cms.f-static.net/uploads/4475382/normal_5fe915a721a33.pdf
    • https://nemamalalebu.weebly.com/uploads/1/3/4/3/134357173/5952935.pdf
    • http://hushseo.online/a_nascente_ayn_rand51as7.pdf
    • https://kulegireketo.weebly.com/uploads/1/3/5/3/135325025/99b6b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa1c.bin
b8debec9879a17f87f5e78fa1733406facbf21f22d607c4b40ca7224c54ca942		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA1C 4896 bytes
font_01_sfnt_off00010b14.bin
eb97bbc555136362dc05530c2ff1479185333da7eaa7375eb57648148e87f7fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B14 5036 bytes

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