Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd6054dd9adb0e73…

MALICIOUS

PDF

91.2 KB Created: 2021-05-07 00:06:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e0899d207f65dc685075904cfd80c98 SHA-1: 7cd9893e3d78b1fabd97327ddb62dc5198ddbfb5 SHA-256: dd6054dd9adb0e736d31cacf37f96824a883a845a659bfd2d608bf7b2acf9cdd
104 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The presence of an external URI pointing to 'ketchas.ru' and a visual download button lure suggests an attempt to trick the user into downloading a secondary payload. While no scripts were explicitly extracted, the PDF structure and the nature of the detected threat indicate a phishing attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://ketchas.ru/uplcv?utm_term=of+your+yahoo+messenger+data
    • https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/f667422cc389a8786ef52b79a733e302/60464406182.pdf
    • https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/1608de9bee5849---nenukatavanitos.pdf
    • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160906a296a21c---67930859928.pdf
    • https://baoholaodong24.com/userfiles/file/38937265368.pdf
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e60b2c56b1---burunofodaf.pdf
    • https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/jtnu69ki822b6ev8vfq2auo263/41375295237.pdf
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/7edd35ba6972e191af2a95265e834cd0/tamenaki.pdf
    • https://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/a8d3c91e86fd0fc7d575c8990fa011e5/videwaxubujofumub.pdf
    • https://roofmed.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16072d483875b2---39366240259.pdf
    • https://www.helmmsp.ca/wp-content/plugins/super-forms/uploads/php/files/ff68b4f73073208c1206ff845505031f/79289600167.pdf
    • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/32995e6474677c40119eb551664bdc38/rexolitadopidewusanetuz.pdf
    • https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/1d359ae7df808703b6f8b497c043cb35/35869608384.pdf
    • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bc12c52989---86850446868.pdf
    • https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/gc7ho6btmj5ma6ohc7u45e7ola/27573755882.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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_off000123db.bin
8ca164004370b2df0f84668561386b9f567f6476e20334f7bec4373cd7ef87a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x123DB 5416 bytes
font_01_sfnt_off00013624.bin
3a758e52432fd5afe57a9a7becc38aafdc12bb8eda5e9b1e50d800d65d2a077f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13624 13600 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.