Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aa27117bb9e3759…

MALICIOUS

PDF

68.8 KB Created: 2021-02-15 13:42:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eab51032e2527315781d807739d6507d SHA-1: dfa73536aa0141c6ed5637d391d5875a337732e9 SHA-256: 2aa27117bb9e375955e5e15a7a35c7cb43030dace30508ae51cb2266898fbf73
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest a phishing or malware delivery attempt, potentially leveraging JavaScript for execution.

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://bologen.ru/wix?keyword=aliens+earth+hive+pdf
    • https://static.s123-cdn-static.com/uploads/4409813/normal_5ff54f4fb786e.pdf
    • http://cmbespaceclient.xyz/20189418752lqhqq.pdf
    • http://boevoenlp.com/airline_tycoon_2_completo_portuguesu5obh.pdf
    • https://tetomorefaboma.weebly.com/uploads/1/3/1/3/131384600/wadukeziraj.pdf
    • http://ighelpcenter.xyz/hmrc_furlough_online_hotlineadrh1.pdf
    • https://cdn.sqhk.co/wujugojuse/KzgfX79/65293944448.pdf
    • https://cdn-cms.f-static.net/uploads/4408984/normal_6028a1375506e.pdf
    • https://static.s123-cdn-static.com/uploads/4420230/normal_60047f4435296.pdf
    • http://sfr-espace.best/nijazaxufosepiwuget8kj9s.pdf
    • https://tinutenuku.weebly.com/uploads/1/3/4/6/134664278/vezofatavawada.pdf
    • https://static.s123-cdn-static.com/uploads/4495685/normal_5fefb8c5864fe.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/babetafaperaxov/35330420262.pdf
    • https://s3.amazonaws.com/fedufiporara/1709520974.pdf
    • http://relogevavikidid.epizy.com/94981567625.pdf
    • https://s3.amazonaws.com/jevopemosod/wibudeletamazevefibax.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2ed.bin
d86b4e83292ff7c4a1e188a7ac3c71cf379f8480a99622558f54de1610eb0095		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD2ED 5176 bytes
font_01_sfnt_off0000e48b.bin
c518e89f32cdf6a4eba6748b4f11a2a1c1833706c4da26af67b4fdd4939b3e5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE48B 9940 bytes

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