Malicious PDF — malware analysis report

Static analysis result for SHA-256 603b704c129c7007…

MALICIOUS

PDF

191.7 KB Created: 2021-05-31 04:29:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b50535f203f7a3f9586f8b7747321842 SHA-1: d8a9bdffdbc60931f4d970de11c557bc5d934c2c SHA-256: 603b704c129c7007333e52e3229b0c19b8b2ebc8b00904455ecc2459aedb40c6
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely serving as a lure for phishing or malware distribution. No scripts were extracted, but the presence of an external URI suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://seumenha.ru/123?utm_term=vayne+top+guide+s9
    • https://cdn-cms.f-static.net/uploads/4449614/normal_603a44b0f3190.pdf
    • https://kasugokadudibuk.weebly.com/uploads/1/3/4/7/134740653/satokasevuf-sewax-fofofegas.pdf
    • https://xoretesani.weebly.com/uploads/1/3/4/3/134315313/gesiriguxalarod.pdf
    • https://cdn-cms.f-static.net/uploads/4501045/normal_60260569ae880.pdf
    • https://gonupedifi.weebly.com/uploads/1/3/4/5/134524362/nezanadafal.pdf
    • https://cdn-cms.f-static.net/uploads/4492246/normal_60676770cd06f.pdf
    • https://cdn-cms.f-static.net/uploads/4392474/normal_606e7854d148d.pdf
    • https://vififeroxesazu.weebly.com/uploads/1/3/4/7/134737415/1343772.pdf
    • https://fijisakotapabe.weebly.com/uploads/1/3/4/0/134013267/5974794.pdf
    • https://mubelumovetofap.weebly.com/uploads/1/3/1/8/131856402/3989df.pdf
    • https://cdn-cms.f-static.net/uploads/4368956/normal_60482545108f4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/b1036cee-907a-4497-a734-d4e69a35ca36/45919343474.pdf
    • https://uploads.strikinglycdn.com/files/ad25b760-beea-42d0-9d08-6c94bdb1e330/12809463457.pdf
    • https://uploads.strikinglycdn.com/files/86ef076a-2afe-4b99-9a68-a173d4b688b9/pezizigopusi.pdf
    • https://uploads.strikinglycdn.com/files/4ea1d667-8302-4c45-b97a-a8baa5cef087/vimulimameva.pdf
    • https://uploads.strikinglycdn.com/files/c927bcc4-0b83-42fb-884b-fde227eafc5b/samsung_scx-4623_printer_manual.pdf
    • https://uploads.strikinglycdn.com/files/05a70332-4e82-4d77-8967-9387ffe5d397/degive.pdf
    • https://uploads.strikinglycdn.com/files/ac6c8b6e-f4b6-4f75-931c-309b08bf0a44/bozumasenoxekelilize.pdf
    • https://uploads.strikinglycdn.com/files/b3dbf240-8dd8-4956-b2ad-5d13540fe6b5/solel.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_off00029644.bin
0ede0b99629174f3f6e6f6a60f2808bd667b07a5a31fb5c0c8b49c1a21784c47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x29644 5104 bytes
font_01_sfnt_off0002a7b1.bin
246d6d632482fd47d210db2f3a19d3773e2ac3a5abe9dc8bd3570c28c8bb37fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7B1 2928 bytes
font_02_sfnt_off0002b3ff.bin
777f3e71ba04b0f59706d8111353e47de7d4c85d3b864f5a8d6bd521dd58b762		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3FF 15620 bytes
font_03_sfnt_off0002e15b.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E15B 4324 bytes

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