Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c2e02196011810f…

MALICIOUS

PDF

76.2 KB Created: 2021-01-01 14:30:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 20111d5f2d8270de1585b5d72e4177d5 SHA-1: d48fcc8d6a37cee0856a8de1bb68ad5be5688595 SHA-256: 0c2e02196011810fe6395bf8b7517681f4975a490346b393c8cb668761cf0913
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, with a high risk score. It contains an embedded URI pointing to 'trafftec.ru', which is likely a phishing or malware distribution domain. Although the document body is heavily obfuscated, the presence of the external URI and the strong heuristic detections indicate a malicious intent to redirect the user to a harmful site.

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://trafftec.ru/strik?utm_term=bubble+boy+seinfeld PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4392453/normal_5f9abb3336e4f.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://uploads.strikinglycdn.com/files/103f4406-d57f-4760-b218-4c0d6feb44dd/semesiza.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/pubg_lite_apk_download_for_laptop.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/altura_photo_flash_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/ppt_slides_templates_for_business.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39b28158-7e06-4378-8839-a69278f36827/21407269376.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/newt_the_maze_runner_movie_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/jusapi.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/51761658926.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a762acc5-4bff-41a6-a370-ed43703b64bb/snow_leopards_adaptations.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/novejibewit.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_off0000e11b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE11B 4688 bytes
SHA-256: c349091f3baa8fe21840ec97731b566ec9b46033a34cca35f2118b65cd683d63
font_01_sfnt_off0000f119.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF119 10836 bytes
SHA-256: 6b5658674dc48696b90bd5dfaebbf3acdb21574f49bd8ccecd3fd78deb03e06c
font_02_sfnt_off00011648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11648 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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