Malicious PDF — malware analysis report

Static analysis result for SHA-256 05e49e5107c0d9d0…

MALICIOUS

PDF

71.8 KB Created: 2021-02-15 06:58:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 87e76cb6d9652cf1b36d2663f9088513 SHA-1: ae0675af37aaa4b18a7f42bec11dd831acd79ca0 SHA-256: 05e49e5107c0d9d08296d93f6d580547b6c4152a94d788a70a0fa9802eae84c9
104 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, indicating a high likelihood of malicious intent. The presence of an embedded URL pointing to 'jacksth.ru' suggests an attempt to redirect the user to a malicious site, likely for downloading a secondary payload. The heuristic 'SE_DOWNLOAD_BUTTON' further supports a social engineering lure to trick the user into initiating a download.

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://jacksth.ru/wix?keyword=piano+tiles+2+apkmirror PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4389792/normal_5fe89038dec27.pdfIn PDF document text
    • https://cdn.sqhk.co/lixejudazeza/giicgiE/commander_cody_band_youtube.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374369/normal_5fd34d4d0d3d2.pdfIn PDF document text
    • https://cdn.sqhk.co/kozuvurop/gMThjAN/wulasodazot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470221/normal_5fd2a9f7d5622.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464732/normal_5feebef037dc9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444351/normal_5ff8ab69e4b5d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453764/normal_6003772a2140c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418001/normal_5fed4e8c56615.pdfIn PDF document text
    • https://cdn.sqhk.co/tovisegag/zijOvtg/luniput.pdfIn PDF document text
    • https://cdn.sqhk.co/velabolo/dihhe0p/78763791924.pdfIn PDF document text
    • https://cdn.sqhk.co/dirujigowag/7ewevOD/67508046276.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/xovekolamoxe/activex_control_google_chrome.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/rectifier_in_electronics.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/allah_wallpaper_android.pdfIn PDF document text
    • https://s3.amazonaws.com/lawakux/11622059171.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_off0000ce4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE4B 4952 bytes
SHA-256: f6ded552314c8f784874a98c2672321a7dec8466fcb8b997a7099483704e0392
font_01_sfnt_off0000deff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEFF 10484 bytes
SHA-256: b972c00279ba99c9b69752844560e1aa6cd0dbfaabf0fef2ed76b81dd7e6651e
font_02_sfnt_off000102f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102F4 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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