Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e8013e2d79a1554…

MALICIOUS

PDF

64.2 KB Created: 2021-03-01 08:22:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 41eb70f19722e7f85764024ddce93beb SHA-1: a541d16e81ec9608ec5a063096c24007e1b5fc0c SHA-256: 6e8013e2d79a1554f6a36ebd7fa379f74fb475f849b9bf99a63f36b657ad835e
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'https://jottigo.ru/123?utm_term=juegos+de+cinema+panic+3', which is likely a lure for phishing or malware download. The document body is heavily obfuscated, preventing a clear understanding of its specific content, but the presence of external URLs and the malware detection strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/123?utm_term=juegos+de+cinema+panic+3 PDF link annotation
    • http://wijofotezopadik.medianewsonline.com/24234132672.pdfIn PDF document text
    • http://gipogup.sportsontheweb.net/the_rules_of_attraction_bret_easton_ellis_film.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470408/normal_600fc7e16aed5.pdfIn PDF document text
    • http://folivapizi.66ghz.com/django_template_if_not_defined.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/lomogas/adolescence_medley_sub_indo_batch.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/tibia_knight_guide_200.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/65950481315.pdfIn PDF document text
    • http://sebipukavore.epizy.com/3092197679.pdfIn PDF document text
    • http://namakanexir.atwebpages.com/national_oilwell_varco_mechanical_engineer_salary.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/shanghai_disneyland_guide_map.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/dimimatededefezozenexiz.pdfIn PDF document text
    • https://s3.amazonaws.com/sedowedi/30361029794.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_off0000be53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE53 5420 bytes
SHA-256: 8bb388a52daf4b92d53b24553a444658a2771f6469a3e39c4a02345edfe7d139
font_01_sfnt_off0000d0b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0B3 10584 bytes
SHA-256: 59baabb46e6290335399958ac8b17eed0aec2be2ce1c1ad497ebacca9b0afc9d

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