Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee1198899b8aedac…

MALICIOUS

PDF

68.7 KB Created: 2020-11-24 04:12:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a4554c8a3d8ecaed1590397d7cab11d SHA-1: 1d4d3d9b01b6da28e99826f856a23324189db092 SHA-256: ee1198899b8aedacc72bf681daa669bb4494a1ac162f7eb4dc8d56cd85f27411
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, which is a strong indicator of malicious intent. ClamAV and ML classifiers also flagged this file as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, appears to be a lure related to a game, directing users to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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=mount+and+blade+viking+conquest+weap
    • https://jujapuboma.weebly.com/uploads/1/3/4/6/134688254/6153191.pdf
    • https://wejakoguxi.weebly.com/uploads/1/3/4/3/134324676/9534756.pdf
    • https://pawasisuleti.weebly.com/uploads/1/3/4/6/134652657/1520757.pdf
    • https://binezorimitujux.weebly.com/uploads/1/3/4/3/134337637/vafedaran-lebikipujapuxo.pdf
    • https://razisosip.weebly.com/uploads/1/3/0/7/130739291/guwun.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bizamesuwepe/10284944221.pdf
    • https://s3.amazonaws.com/befevifa/67202867739.pdf
    • https://s3.amazonaws.com/vavale/10027597015.pdf
    • https://s3.amazonaws.com/vunizi/adobe_audition_manual_download.pdf
    • https://uploads.strikinglycdn.com/files/85509ffd-a144-4578-8f2a-5f8a002b445a/legoland_california_map_download.pdf
    • https://uploads.strikinglycdn.com/files/039bcd2e-6a98-4ddc-ad82-9b1c5cdb99eb/gozufokivir.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_off0000cf4e.bin
195a7f8078a0b009e360294114fa28ebe171c1544ccdc00ba00b61c7864d3a1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF4E 5632 bytes
font_01_sfnt_off0000e2a1.bin
1991cdf8628409888942615d91aaacecc2b816b4109a8e7d93dfe3be0310241f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2A1 10420 bytes

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