Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebbb1178a344ea00…

MALICIOUS

PDF

104.0 KB Created: 2020-12-23 16:45:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fc429ced07341ecca7dc5500edaaa32 SHA-1: 100a7b1f089706ceebddc3bcded216ec52a00493 SHA-256: ebbb1178a344ea0099e6b94d444ed46ef7d69334ff1f924b29c580b14975eb2e
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and ClamAV as malicious. Heuristics indicate it contains an advance-fee scam lure, presenting language related to lotteries or prizes and parcel delivery requirements. The embedded URL `https://traffking.ru/aws?utm_term=cache+2005+movie` is likely part of the scam infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9740

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://traffking.ru/aws?utm_term=cache+2005+movie
    • https://mebavowu.weebly.com/uploads/1/3/4/3/134353315/ebd8d.pdf
    • https://kinumonitebira.weebly.com/uploads/1/3/4/6/134605003/tusemumeze-tubevasoluxakaj-wavile.pdf
    • https://cdn.sqhk.co/lanabeja/Kji2jiY/emotional_freedom_technique_tapping_videos.pdf
    • https://cdn-cms.f-static.net/uploads/4375088/normal_5f96949a153e7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rujabepifar/a_guide_to_artificial_intelligence_in_healthcare.pdf
    • https://s3.amazonaws.com/muwomapotumugi/russian_books_sites.pdf
    • https://s3.amazonaws.com/zalisujezajaje/54064585504.pdf
    • https://uploads.strikinglycdn.com/files/c63e5a24-e201-4e86-8546-54ccebd79591/monster_truck_games_free.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_off00015834.bin
696be57fbb5d4bc44d3aca5ac87f0549f19cef1ac883e7d48de1c8dd570d9de1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15834 5096 bytes
font_01_sfnt_off00016970.bin
cae50429ef8e8af9953ce7bcad45d4c83187c0d83b4d1153be96416164cec616		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16970 12388 bytes

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