Malicious PDF — malware analysis report

Static analysis result for SHA-256 46e5135f1fad4730…

MALICIOUS

PDF

70.6 KB Created: 2020-11-11 18:02:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: ab44efdcec33b91b18975b20bcbd01a0 SHA-1: 71d74cd962dbf452fce82f7c18ccdccee6be8d50 SHA-256: 46e5135f1fad473013c381edd438751c1f4d83492b329180e4f46588b09c4154
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to host or redirect to a malicious payload. The presence of a visual download button further supports the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://traffnew.ru/aws?utm_term=top+rpg+offline+android+games+2018 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375071/normal_5f8b2c5e5ef99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407989/normal_5f9d21a4adbc7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368971/normal_5f8fa345ca79c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376087/normal_5f8e6c606e854.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407576/normal_5f9c3994afd14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377905/normal_5f968e2fc4cf1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/titugome/pakakodalugi.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/abbreviations_list_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/59211454142.pdfIn PDF document text
    • https://s3.amazonaws.com/risalenefazozo/matoxuteruwimaginuwoge.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/traduire_un_anglais_en_franais_en_ligne_gratuitement.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/zixaromegagozetofok.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c819.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC819 5540 bytes
SHA-256: 469e286e60070f27a61cbc791baf1b4e9b21781803084b090718247a2212e7c9
font_01_sfnt_off0000dac6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAC6 10880 bytes
SHA-256: d6a0d6a5c4989f7def8e55d01476f2c54f04c31f7d853df07f973f324432fdc5
font_02_sfnt_off0001000a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1000A 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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