Malicious PDF — malware analysis report

Static analysis result for SHA-256 9648d483fd1a2a3b…

MALICIOUS

PDF

78.5 KB Created: 2020-11-19 21:06:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9c9496dcf8072bb22d8882f6a66ac76a SHA-1: 1dc6086b1ec4c313b2fa406dab293dbcb0c058c8 SHA-256: 9648d483fd1a2a3bc092f76775fbdf686df4dc258e666a9a9a7b63422a1c9e1b
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 phishing or trojan payload. It contains an embedded URL that directs users to a suspicious domain, likely for further exploitation. The document body, though heavily obfuscated, suggests a lure related to translation or search, consistent with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://traffset.ru/strik?utm_term=zuando+com+ou+google+tradutor+de+ing
    • https://cdn-cms.f-static.net/uploads/4447079/normal_5fa80fd3b2cf5.pdf
    • https://cdn-cms.f-static.net/uploads/4372967/normal_5f8bc64320a67.pdf
    • https://cdn-cms.f-static.net/uploads/4426679/normal_5f9b6129001d4.pdf
    • https://cdn-cms.f-static.net/uploads/4365620/normal_5f87482c96da6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/gulapore/97787138247.pdf
    • https://s3.amazonaws.com/dedinavesute/meeting_minutes_samples.pdf
    • https://s3.amazonaws.com/metubevozisul/96779653704.pdf
    • https://uploads.strikinglycdn.com/files/710d4c8f-7448-4128-8bd6-4d84e1d03973/buboguwunepejapuxeba.pdf
    • https://s3.amazonaws.com/rexogeguxosix/durilidegumid.pdf
    • https://s3.amazonaws.com/jebupofedijakuk/45893246830.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4c2.bin
52a5903d9c14bd2a9719101991d1f4fedb882610271f2c85fa371fbbff2e4113		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C2 4920 bytes
font_01_sfnt_off0000f55d.bin
6b76e8635a862a2506ea742023cb95dea3ff6a0ff99f43dda4c99067ac181e86		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF55D 13432 bytes
font_02_sfnt_off00011ed0.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11ED0 4324 bytes

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