Malicious PDF — malware analysis report

Static analysis result for SHA-256 c14ce47bce55a0f4…

MALICIOUS

PDF

72.4 KB Created: 2021-01-01 04:04:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1c1182112b235962d46a0b9a39006d6b SHA-1: 9b1213d48a642882960a99a778b066406f390304 SHA-256: c14ce47bce55a0f4421086468155953871f6c96556b6e896973095d79db0af8a
96 Risk Score

Malware Insights

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

The 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 'trafficel.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, contains references to 'La liste noire saison 5 tva' and 'wkhtmltopdf', suggesting a lure related to a blacklist or a specific show, aiming to trick the user into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafficel.ru/strik?utm_term=la+liste+noire+saison+5+tva PDF link annotation
    • https://xufiwelak.weebly.com/uploads/1/3/1/1/131164558/takovi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368489/normal_5f9d65faeb89e.pdfIn PDF document text
    • https://gozexorajive.weebly.com/uploads/1/3/4/6/134610068/xepolakiduzonis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446512/normal_5fab7984106ce.pdfIn PDF document text
    • https://valefeka.weebly.com/uploads/1/3/5/3/135345526/tizipofegoguf-tilawimidakosad-ravofavoladok-zezebabasejepas.pdfIn PDF document text
    • https://bifurizikekoson.weebly.com/uploads/1/3/4/6/134690439/4140902.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/juvetaso/doodle_god_unblocked_games.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/5033063812.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/development_of_criminal_law_in_india.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/68007468659.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/fazeligukimegasepuvu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d4bc49d-918e-4f29-8306-3ceddac04c37/blade_and_soul_secret_techniques.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dce3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE3 4804 bytes
SHA-256: 919d8e62fe5a031115d01fa8a3ea9e516f3c60f8ea638b9599815ddda079c9a0
font_01_sfnt_off0000ed51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED51 11664 bytes
SHA-256: 9effb2eda8103ffbcf48dfdacb90f4c2daadc17a3d35dd9c49610bb2206d5ffc